Morphine Injection

Morphine injection is used to relieve moderate to severe pain. Morphine is in a class of medications called opiate (narcotic) analgesics. It works by changing the way the brain and nervous system respond to pain.

Morphine injection comes as a solution (liquid) to inject intramuscularly (into a muscle) or intravenously (into a vein). It is usually injected once every 4 hours as needed. Use morphine injection at around the same times every day. Follow the directions on your prescription label carefully, and ask your doctor or pharmacist to explain any part you do not understand. Use morphine injection exactly as directed.

Your doctor may adjust your dose of morphine injection during your treatment, depending on how well your pain is controlled and on the side effects that you experience. Talk to your doctor about how you are feeling during your treatment with morphine injection.

If you have used morphine injection for longer than a few days, do not stop using it suddenly. If you suddenly stop using morphine injection, you may experience withdrawal symptoms including restlessness; teary eyes; runny nose; yawning; sweating; chills; muscle, back or joint pain; widening of the pupils; irritability; anxiety; weakness; stomach cramps; difficulty falling asleep or staying asleep; nausea; loss of appetite; vomiting; diarrhea; fast breathing; or fast heartbeat. Your doctor will probably decrease your dose gradually.

This medication may be prescribed for other uses; ask your doctor or pharmacist for more information.

Before using morphine injection,

• tell your doctor and pharmacist if you are allergic to morphine, any other medications, or ingredients in morphine injection. Ask your pharmacist for a list of the ingredients.

• tell your doctor and pharmacist what other prescription and nonprescription medications, vitamins, nutritional supplements, and herbal products you are taking or plan to take. Be sure to mention any of the following: antihistamines (found in cold and allergy medications); cimetidine (Tagamet); cyclobenzaprine (Amrix); lithium (Lithobid, in Librax); medications for migraine headaches such as almotriptan (Axert), eletriptan (Relpax), frovatriptan (Frova), naratriptan (Amerge), rizatriptan (Maxalt), sumatriptan (Imitrex, in Treximet), and zolmitriptan (Zomig); mirtazapine (Remeron); 5HT3 serotonin blockers such as alosetron (Lotronex), dolasetron (Anzemet), granisetron (Kytril), ondansetron (Zofran, Zuplenz), or palonosetron (Aloxi); selective serotonin-reuptake inhibitors such as citalopram (Celexa), escitalopram (Lexapro), fluoxetine (Prozac, Sarafem, in Symbyax), fluvoxamine (Luvox), paroxetine (Brisdelle, Prozac, Pexeva), and sertraline (Zoloft); serotonin and norepinephrine reuptake inhibitors such as desvenlafaxine (Khedezla, Pristiq), duloxetine (Cymbalta), and venlafaxine (Effexor); tramadol (Conzip, Ultram, in Ultracet); trazodone; or tricyclic antidepressants ('mood elevators') such as amitriptyline, clomipramine (Anafranil), desipramine (Norpramin), doxepin (Silenor, Zonalon), imipramine (Tofranil), nortriptyline (Pamelor), protriptyline (Vivactil), and trimipramine (Surmontil). Also tell your doctor or pharmacist if you are taking or receiving the following monoamine oxidase (MAO) inhibitors or if you have stopped taking them within the past two weeks: isocarboxazid (Marplan), linezolid (Zyvox), methylene blue, phenelzine (Nardil), selegiline (Eldepryl, Emsam, Zelapar), or tranylcypromine (Parnate). Many other medications may also interact with morphine, so be sure to tell your doctor about all the medications you are taking, even those that do not appear on this list. Your doctor may need to change the doses of your medications or monitor you carefully for side effects.

• tell your doctor if you have or have ever had any of the conditions mentioned in the IMPORTANT WARNING section or paralytic ileus (condition in which digested food does not move through the intestines). Your doctor may tell you not to use morphine.

• tell your doctor what herbal products you are taking, especially St. John's wort.

• tell your doctor if you have or have ever had low blood pressure, or heart, liver, or kidney disease.

• tell your doctor if you are breastfeeding.

• you should know that this medication may decrease fertility in men and women. Talk to your doctor about the risks of using morphine.

• if you are having surgery, including dental surgery, tell the doctor or dentist that you are using morphine.

• you should know that this medication may make you drowsy. Do not drive a car or operate machinery until you know how this medication affects you.

• you should know that morphine may cause dizziness, lightheadedness, and fainting when you get up too quickly from a lying position. To avoid this problem, get out of bed slowly, resting your feet on the floor for a few minutes before standing up.

• you should know that morphine may cause constipation. Talk to your doctor about changing your diet or using other medications to prevent or treat constipation while you are using morphine.

Unless your doctor tells you otherwise, continue your normal diet.

• Morphine may cause side effects. Tell your doctor if any of these symptoms are severe or do not go away:

  • headache

  • dizziness

  • lightheadedness

  • mood changes

• Some side effects can be serious. If you experience any of these symptoms, call your doctor immediately or get emergency medical treatment:

  • seizures

  • slowed breathing

  • long pauses between breaths

  • shortness of breath

  • agitation, hallucinations (seeing things or hearing voices that do not exist), fever, sweating, confusion, fast heartbeat, shivering, severe muscle stiffness or twitching, loss of coordination, nausea, vomiting, or diarrhea

  • nausea, vomiting, loss of appetite, weakness, or dizziness

  • inability to get or keep an erection

  • irregular menstruation

  • decreased sexual desire

  • itching

  • rash

  • hives

• Morphine may cause other side effects. Call your doctor if you have any unusual problems while you are using this medication.

• If you experience a serious side effect, you or your doctor may send a report to the Food and Drug Administration's (FDA) MedWatch Adverse Event Reporting program online (http://www.fda.gov/Safety/MedWatch) or by phone (1-800-332-1088).

In case of overdose, call the poison control helpline at 1-800-222-1222. Information is also available online at https://www.poisonhelp.org/help. If the victim has collapsed, had a seizure, has trouble breathing, or can't be awakened, immediately call emergency services at 911.

While using morphine injection, you should talk to your doctor about having a rescue medication called naloxone readily available (e.g., home, office). Naloxone is used to reverse the life-threatening effects of an overdose. It works by blocking the effects of opiates to relieve dangerous symptoms caused by high levels of opiates in the blood. Your doctor may also prescribe you naloxone if you are living in a household where there are small children or someone who has abused street or prescription drugs. You should make sure that you and your family members, caregivers, or the people who spend time with you know how to recognize an overdose, how to use naloxone, and what to do until emergency medical help arrives. Your doctor or pharmacist will show you and your family members how to use the medication. Ask your pharmacist for the instructions or visit the manufacturer's website to get the instructions. If symptoms of an overdose occur, a friend or family member should give the first dose of naloxone, call 911 immediately, and stay with you and watch you closely until emergency medical help arrives. Your symptoms may return within a few minutes after you receive naloxone. If your symptoms return, the person should give you another dose of naloxone. Additional doses may be given every 2 to 3 minutes, if symptoms return before medical help arrives.

Symptoms of overdose may include the following:

• slow, shallow, or irregular breathing

• difficulty breathing

• sleepiness

• unable to respond or wake up

• cold, clammy skin

• small pupils

• slow heartbeat

• blurred vision

• nausea

• fainting

Keep all appointments with your doctor and laboratory. Your doctor may order certain lab tests to check your body's response to morphine.

Before having any laboratory test (especially those that involve methylene blue), tell your doctor and the laboratory personnel that you are using morphine.

This prescription is not refillable. If you are using morphine to control your pain on a long term basis, be sure to schedule appointments with your doctor so that you do not run out of medication. If you are using morphine on a short-term basis, call your doctor if you continue to experience pain after you finish the medication.

It is important for you to keep a written list of all of the prescription and nonprescription (over-the-counter) medicines you are taking, as well as any products such as vitamins, minerals, or other dietary supplements. You should bring this list with you each time you visit a doctor or if you are admitted to a hospital. It is also important information to carry with you in case of emergencies.

Drug	Interaction
Repaglinide	Repaglinide The metabolism of Repaglinide can be decreased when combined with Morphine.
Montelukast	Montelukast The metabolism of Morphine can be decreased when combined with Montelukast.
Atorvastatin	Atorvastatin The metabolism of Atorvastatin can be decreased when combined with Morphine.
Dolasetron	Dolasetron The risk or severity of adverse effects can be increased when Morphine is combined with Dolasetron.
Bisacodyl	Bisacodyl The therapeutic efficacy of Bisacodyl can be decreased when used in combination with Morphine.
Candesartan	Candesartan The metabolism of Morphine can be decreased when combined with Candesartan.
Clopidogrel	Clopidogrel The serum concentration of the active metabolites of Clopidogrel can be decreased when Clopidogrel is used in combination with Morphine.
Diphenoxylate	Diphenoxylate The risk or severity of adverse effects can be increased when Morphine is combined with Diphenoxylate.
Erythromycin and Sulfisoxazole	Erythromycin and Sulfisoxazole The serum concentration of Morphine can be increased when it is combined with Erythromycin.
Fenofibrate	Fenofibrate The metabolism of Morphine can be decreased when combined with Fenofibrate.
Guanfacine	Guanfacine The risk or severity of adverse effects can be increased when Morphine is combined with Guanfacine.
Magnesium Hydroxide	Magnesium Hydroxide The therapeutic efficacy of Magnesium hydroxide can be decreased when used in combination with Morphine.
Magnesium Oxide	Magnesium Oxide The therapeutic efficacy of Magnesium oxide can be decreased when used in combination with Morphine.
Naratriptan	Naratriptan The risk or severity of adverse effects can be increased when Morphine is combined with Naratriptan.
Penbutolol	Penbutolol The risk or severity of adverse effects can be increased when Morphine is combined with Acebutolol.
Pentazocine	Pentazocine The therapeutic efficacy of Pentazocine can be decreased when used in combination with Morphine.
Polyethylene glycol-electrolyte solution (PEG-ES)	Polyethylene glycol-electrolyte solution (PEG-ES) The therapeutic efficacy of Polyethylene glycol can be decreased when used in combination with Morphine.
Potassium	Potassium The therapeutic efficacy of Potassium can be decreased when used in combination with Morphine.
Psyllium	Psyllium The therapeutic efficacy of Plantago seed can be decreased when used in combination with Morphine.
Reserpine	Reserpine The serum concentration of Morphine can be increased when it is combined with Reserpine.
Rizatriptan	Rizatriptan The risk or severity of adverse effects can be increased when Morphine is combined with Rizatriptan.
Sumatriptan	Sumatriptan The risk or severity of adverse effects can be increased when Morphine is combined with Sumatriptan.
Tacrolimus	Tacrolimus The serum concentration of Morphine can be increased when it is combined with Tacrolimus.
Tizanidine	Tizanidine The risk or severity of adverse effects can be increased when Morphine is combined with Tizanidine.
Zolmitriptan	Zolmitriptan The risk or severity of adverse effects can be increased when Morphine is combined with Zolmitriptan.
Fluconazole Injection	Fluconazole Injection The serum concentration of Morphine can be increased when it is combined with Fluconazole.
Hydromorphone Injection	Hydromorphone Injection The risk or severity of adverse effects can be increased when Morphine is combined with Hydromorphone.
Meperidine Injection	Meperidine Injection The risk or severity of adverse effects can be increased when Morphine is combined with Meperidine.
Metoclopramide Injection	Metoclopramide Injection The therapeutic efficacy of Morphine can be decreased when used in combination with Metoclopramide.
Metronidazole Injection	Metronidazole Injection The metabolism of Morphine can be decreased when combined with Metronidazole.
Zidovudine Injection	Zidovudine Injection The metabolism of Morphine can be increased when combined with Zidovudine.
Altretamine	Altretamine Amphetamine may increase the analgesic activities of Morphine.
Cyclosporine	Cyclosporine The serum concentration of Cyclosporine can be increased when it is combined with Morphine.
Ondansetron	Ondansetron The risk or severity of adverse effects can be increased when Morphine is combined with Ondansetron.
Granisetron	Granisetron The risk or severity of adverse effects can be increased when Morphine is combined with Granisetron.
Torsemide	Torsemide The metabolism of Morphine can be decreased when combined with Torasemide.
Olanzapine	Olanzapine The risk or severity of adverse effects can be increased when Morphine is combined with Olanzapine.
Alosetron	Alosetron The risk or severity of adverse effects can be increased when Morphine is combined with Alosetron.
Entacapone	Entacapone The risk or severity of adverse effects can be increased when Morphine is combined with Entacapone.
Eprosartan	Eprosartan The risk or severity of adverse effects can be increased when Morphine is combined with Eprosartan.
Hydroxychloroquine	Hydroxychloroquine The metabolism of Hydroxychloroquine can be decreased when combined with Morphine.
Oxcarbazepine	Oxcarbazepine The risk or severity of adverse effects can be increased when Morphine is combined with Oxcarbazepine.
Telmisartan	Telmisartan The risk or severity of adverse effects can be increased when Morphine is combined with Telmisartan.
Zaleplon	Zaleplon The risk or severity of adverse effects can be increased when Morphine is combined with Zaleplon.
Anakinra	Anakinra The metabolism of Morphine can be increased when combined with Anakinra.
Desloratadine	Desloratadine The risk or severity of adverse effects can be increased when Morphine is combined with Desloratadine.
Linezolid	Linezolid The risk or severity of serotonin syndrome can be increased when Linezolid is combined with Morphine.
Trimipramine	Trimipramine The risk or severity of adverse effects can be increased when Morphine is combined with Trimipramine.
Etanercept Injection	Etanercept Injection The metabolism of Morphine can be increased when combined with Etanercept.
Glycopyrrolate	Glycopyrrolate The risk or severity of adverse effects can be increased when Morphine is combined with Glycopyrronium.
Perindopril	Perindopril The risk or severity of adverse effects can be increased when Morphine is combined with Perindopril.
Tenofovir	Tenofovir The serum concentration of Tenofovir can be increased when it is combined with Morphine.
Sirolimus	Sirolimus The serum concentration of Sirolimus can be increased when it is combined with Morphine.
Eplerenone	Eplerenone The therapeutic efficacy of Eplerenone can be decreased when used in combination with Morphine.
Escitalopram	Escitalopram The risk or severity of serotonin syndrome can be increased when Morphine is combined with Escitalopram.
Olmesartan	Olmesartan The risk or severity of adverse effects can be increased when Morphine is combined with Olmesartan.
Zonisamide	Zonisamide The risk or severity of adverse effects can be increased when Morphine is combined with Zonisamide.
Adalimumab Injection	Adalimumab Injection The metabolism of Morphine can be increased when combined with Adalimumab.
Aripiprazole	Aripiprazole The risk or severity of adverse effects can be increased when Morphine is combined with Aripiprazole.
Atomoxetine	Atomoxetine The risk or severity of adverse effects can be increased when Atomoxetine is combined with Morphine.
Dexmethylphenidate	Dexmethylphenidate The risk or severity of adverse effects can be increased when Morphine is combined with Dexmethylphenidate.
Atazanavir	Atazanavir The metabolism of Morphine can be decreased when combined with Atazanavir.
Almotriptan	Almotriptan The metabolism of Almotriptan can be decreased when combined with Morphine.
Eletriptan	Eletriptan The risk or severity of adverse effects can be increased when Eletriptan is combined with Morphine.
Polyethylene Glycol 3350	Polyethylene Glycol 3350 The therapeutic efficacy of Polyethylene glycol can be decreased when used in combination with Morphine.
Vardenafil	Vardenafil The serum concentration of Vardenafil can be increased when it is combined with Morphine.
Tegaserod	Tegaserod The serum concentration of Tegaserod can be increased when it is combined with Morphine.
Tadalafil	Tadalafil Morphine may increase the hypotensive activities of Tadalafil.
Frovatriptan	Frovatriptan The risk or severity of adverse effects can be increased when Morphine is combined with Frovatriptan.
Apomorphine Injection	Apomorphine Injection The risk or severity of adverse effects can be increased when Morphine is combined with Apomorphine.
Infliximab Injection	Infliximab Injection The metabolism of Morphine can be increased when combined with Infliximab.
Protriptyline	Protriptyline The risk or severity of adverse effects can be increased when Morphine is combined with Protriptyline.
Rifaximin	Rifaximin The metabolism of Morphine can be increased when combined with Rifaximin.
Duloxetine	Duloxetine The risk or severity of orthostatic hypotension and syncope can be increased when Morphine is combined with Duloxetine.
Trospium	Trospium The risk or severity of adverse effects can be increased when Morphine is combined with Trospium.
Bosentan	Bosentan Morphine may increase the hypotensive activities of Bosentan.
Erlotinib	Erlotinib The metabolism of Morphine can be decreased when combined with Erlotinib.
Eszopiclone	Eszopiclone The risk or severity of CNS depression can be increased when Morphine is combined with Eszopiclone.
Solifenacin	Solifenacin The risk or severity of adverse effects can be increased when Morphine is combined with Solifenacin.
Dextroamphetamine	Dextroamphetamine Amphetamine may increase the analgesic activities of Morphine.
Sodium Oxybate	Sodium Oxybate Sodium oxybate may increase the central nervous system depressant (CNS depressant) activities of Morphine.
Isocarboxazid	Isocarboxazid Isocarboxazid may increase the analgesic activities of Morphine.
Ramelteon	Ramelteon The risk or severity of adverse effects can be increased when Morphine is combined with Ramelteon.
Darifenacin	Darifenacin The risk or severity of adverse effects can be increased when Darifenacin is combined with Morphine.
Fentanyl	Fentanyl The risk or severity of adverse effects can be increased when Morphine is combined with Fentanyl.
Pregabalin	Pregabalin The therapeutic efficacy of Morphine can be increased when used in combination with Pregabalin.
Deferasirox	Deferasirox The metabolism of Morphine can be decreased when combined with Deferasirox.
Tipranavir	Tipranavir The serum concentration of Tipranavir can be increased when it is combined with Morphine.
Felbamate	Felbamate The risk or severity of adverse effects can be increased when Morphine is combined with Felbamate.
Ranolazine	Ranolazine The serum concentration of Morphine can be increased when it is combined with Ranolazine.
Abatacept Injection	Abatacept Injection The metabolism of Morphine can be increased when combined with Abatacept.
Rasagiline	Rasagiline Rasagiline may increase the analgesic activities of Morphine.
Imatinib	Imatinib The metabolism of Imatinib can be decreased when combined with Morphine.
Sitagliptin	Sitagliptin The metabolism of Sitagliptin can be decreased when combined with Morphine.
Paliperidone	Paliperidone The serum concentration of Morphine can be increased when it is combined with Paliperidone.
Bortezomib	Bortezomib The serum concentration of Bortezomib can be increased when it is combined with Morphine.
Clofarabine Injection	Clofarabine Injection The risk or severity of adverse effects can be increased when Morphine is combined with Clofarabine.
Lubiprostone	Lubiprostone The therapeutic efficacy of Lubiprostone can be decreased when used in combination with Morphine.
Posaconazole	Posaconazole The serum concentration of Posaconazole can be increased when it is combined with Morphine.
Aliskiren	Aliskiren The risk or severity of adverse effects can be increased when Morphine is combined with Aliskiren.
Dimenhydrinate	Dimenhydrinate The risk or severity of adverse effects can be increased when Morphine is combined with Dimenhydrinate.
Lisdexamfetamine	Lisdexamfetamine Lisdexamfetamine may increase the analgesic activities of Morphine.
Nabilone	Nabilone Nabilone may increase the central nervous system depressant (CNS depressant) activities of Morphine.
Sorafenib	Sorafenib The metabolism of Morphine can be decreased when combined with Sorafenib.
Dronabinol	Dronabinol Dronabinol may increase the central nervous system depressant (CNS depressant) activities of Morphine.
Lapatinib	Lapatinib The serum concentration of Morphine can be increased when it is combined with Lapatinib.
Levocetirizine	Levocetirizine The risk or severity of adverse effects can be increased when Morphine is combined with Levocetirizine.
Dasatinib	Dasatinib The serum concentration of Dasatinib can be increased when it is combined with Morphine.
Paclitaxel (with polyoxyethylated castor oil) Injection	Paclitaxel (with polyoxyethylated castor oil) Injection The therapeutic efficacy of Castor oil can be decreased when used in combination with Morphine.
Temsirolimus	Temsirolimus The serum concentration of Temsirolimus can be increased when it is combined with Morphine.
Nilotinib	Nilotinib The serum concentration of Morphine can be increased when it is combined with Nilotinib.
Toremifene	Toremifene The serum concentration of Morphine can be increased when it is combined with Toremifene.
Bexarotene	Bexarotene The metabolism of Morphine can be decreased when combined with Bexarotene.
Desmopressin	Desmopressin The risk or severity of hyponatremia can be increased when Morphine is combined with Desmopressin.
OnabotulinumtoxinA Injection	OnabotulinumtoxinA Injection The risk or severity of adverse effects can be increased when Botulinum toxin type A is combined with Morphine.
RimabotulinumtoxinB Injection	RimabotulinumtoxinB Injection The risk or severity of adverse effects can be increased when Botulinum Toxin Type B is combined with Morphine.
Arsenic Trioxide Injection	Arsenic Trioxide Injection The risk or severity of adverse effects can be increased when Morphine is combined with Arsenic trioxide.
Desvenlafaxine	Desvenlafaxine The risk or severity of serotonin syndrome can be increased when Morphine is combined with Desvenlafaxine.
Nebivolol	Nebivolol The risk or severity of adverse effects can be increased when Morphine is combined with Nebivolol.
Tretinoin	Tretinoin The metabolism of Tretinoin can be decreased when combined with Morphine.
Bendamustine Injection	Bendamustine Injection The serum concentration of Bendamustine can be increased when it is combined with Morphine.
Certolizumab Injection	Certolizumab Injection The metabolism of Morphine can be increased when combined with Certolizumab pegol.
Alvimopan	Alvimopan The risk or severity of adverse effects can be increased when Morphine is combined with Alvimopan.
Methylnaltrexone Injection	Methylnaltrexone Injection The therapeutic efficacy of Morphine can be decreased when used in combination with Methylnaltrexone.
Rufinamide	Rufinamide The risk or severity of adverse effects can be increased when Rufinamide is combined with Morphine.
Silodosin	Silodosin The serum concentration of Silodosin can be increased when it is combined with Morphine.
Midazolam	Midazolam The risk or severity of adverse effects can be increased when Morphine is combined with Midazolam.
Eltrombopag	Eltrombopag The metabolism of Morphine can be decreased when combined with Eltrombopag.
Milnacipran	Milnacipran The risk or severity of serotonin syndrome can be increased when Morphine is combined with Milnacipran.
Sodium Phosphate	Sodium Phosphate The therapeutic efficacy of Sodium phosphate, monobasic can be decreased when used in combination with Morphine.
Fesoterodine	Fesoterodine The risk or severity of adverse effects can be increased when Morphine is combined with Fesoterodine.
Betaxolol	Betaxolol The risk or severity of adverse effects can be increased when Morphine is combined with Betaxolol.
Iloperidone	Iloperidone The risk or severity of adverse effects can be increased when Morphine is combined with Iloperidone.
Prasugrel	Prasugrel The serum concentration of the active metabolites of Prasugrel can be reduced when Prasugrel is used in combination with Morphine resulting in a loss in efficacy.
Lacosamide	Lacosamide The risk or severity of adverse effects can be increased when Morphine is combined with Lacosamide.
Everolimus	Everolimus The serum concentration of Everolimus can be increased when it is combined with Morphine.
Tolvaptan (low blood sodium)	Tolvaptan (low blood sodium) The serum concentration of Tolvaptan can be increased when it is combined with Morphine.
Dronedarone	Dronedarone The serum concentration of Dronedarone can be increased when it is combined with Morphine.
AbobotulinumtoxinA Injection	AbobotulinumtoxinA Injection The risk or severity of adverse effects can be increased when Botulinum toxin type A is combined with Morphine.
Palonosetron Injection	Palonosetron Injection The risk or severity of adverse effects can be increased when Morphine is combined with Palonosetron.
Romidepsin Injection	Romidepsin Injection The serum concentration of Romidepsin can be increased when it is combined with Morphine.
Tapentadol	Tapentadol Tapentadol may increase the central nervous system depressant (CNS depressant) activities of Morphine.
Topotecan	Topotecan The serum concentration of Topotecan can be increased when it is combined with Morphine.
Golimumab Injection	Golimumab Injection The metabolism of Morphine can be increased when combined with Golimumab.
Pazopanib	Pazopanib The metabolism of Morphine can be decreased when combined with Pazopanib.
Asenapine	Asenapine The risk or severity of adverse effects can be increased when Morphine is combined with Asenapine.
Vigabatrin	Vigabatrin The risk or severity of adverse effects can be increased when Morphine is combined with Vigabatrin.
Pitavastatin	Pitavastatin The metabolism of Pitavastatin can be decreased when combined with Morphine.
Oxymorphone	Oxymorphone The risk or severity of adverse effects can be increased when Morphine is combined with Oxymorphone.
Tocilizumab Injection	Tocilizumab Injection The metabolism of Morphine can be increased when combined with Tocilizumab.
IncobotulinumtoxinA Injection	IncobotulinumtoxinA Injection The risk or severity of adverse effects can be increased when Botulinum toxin type A is combined with Morphine.
Cabazitaxel Injection	Cabazitaxel Injection The metabolism of Cabazitaxel can be decreased when combined with Morphine.
Lurasidone	Lurasidone The risk or severity of adverse effects can be increased when Morphine is combined with Lurasidone.
Vilazodone	Vilazodone The risk or severity of adverse effects can be increased when Morphine is combined with Vilazodone.
Denileukin Diftitox Injection	Denileukin Diftitox Injection The risk or severity of adverse effects can be increased when Aldesleukin is combined with Morphine.
Azilsartan	Azilsartan The risk or severity of adverse effects can be increased when Morphine is combined with Azilsartan medoxomil.
Linagliptin	Linagliptin The serum concentration of Morphine can be increased when it is combined with Linagliptin.
Telaprevir	Telaprevir The metabolism of Morphine can be decreased when combined with Glecaprevir.
Cyclophosphamide Injection	Cyclophosphamide Injection The metabolism of Morphine can be increased when combined with Cyclophosphamide.
Abiraterone	Abiraterone The metabolism of Morphine can be decreased when combined with Abiraterone.
Rivaroxaban	Rivaroxaban The serum concentration of Rivaroxaban can be increased when it is combined with Morphine.
Ticagrelor	Ticagrelor The therapeutic efficacy of Ticagrelor can be decreased when used in combination with Morphine.
Brentuximab Vedotin Injection	Brentuximab Vedotin Injection The serum concentration of Brentuximab vedotin can be increased when it is combined with Morphine.
Vandetanib	Vandetanib The serum concentration of Morphine can be increased when it is combined with Vandetanib.
Clobazam	Clobazam The risk or severity of adverse effects can be increased when Morphine is combined with Clobazam.
Vemurafenib	Vemurafenib The serum concentration of Morphine can be increased when it is combined with Vemurafenib.
Vismodegib	Vismodegib The metabolism of Morphine can be decreased when combined with Vismodegib.
Ivacaftor	Ivacaftor The serum concentration of Morphine can be increased when it is combined with Ivacaftor.
Axitinib	Axitinib The serum concentration of Axitinib can be increased when it is combined with Morphine.
Crizotinib	Crizotinib The serum concentration of Morphine can be increased when it is combined with Crizotinib.
Cabergoline	Cabergoline The risk or severity of adverse effects can be increased when Cabergoline is combined with Morphine.
Naloxone Injection	Naloxone Injection The therapeutic efficacy of Morphine can be decreased when used in combination with Naloxone.
Ambrisentan	Ambrisentan The serum concentration of Ambrisentan can be increased when it is combined with Morphine.
Ezogabine	Ezogabine The risk or severity of adverse effects can be increased when Morphine is combined with Tiagabine.
Carfilzomib Injection	Carfilzomib Injection The serum concentration of Morphine can be increased when it is combined with Carfilzomib.
Iloprost	Iloprost The risk or severity of adverse effects can be increased when Morphine is combined with Iloprost.
Enzalutamide	Enzalutamide The serum concentration of Morphine can be increased when it is combined with Enzalutamide.
Mirabegron	Mirabegron The serum concentration of Mirabegron can be increased when it is combined with Morphine.
Regorafenib	Regorafenib The metabolism of Morphine can be decreased when combined with Regorafenib.
Bosutinib	Bosutinib The metabolism of Morphine can be decreased when combined with Bosutinib.
Linaclotide	Linaclotide The therapeutic efficacy of Linaclotide can be decreased when used in combination with Morphine.
Teriflunomide	Teriflunomide The metabolism of Morphine can be decreased when combined with Teriflunomide.
Cabozantinib (thyroid cancer)	Cabozantinib (thyroid cancer) The metabolism of Morphine can be decreased when combined with Cabozantinib.
Ponatinib	Ponatinib The metabolism of Morphine can be decreased when combined with Ponatinib.
Pomalidomide	Pomalidomide The risk or severity of adverse effects can be increased when Morphine is combined with Pomalidomide.
Ado-trastuzumab Emtansine Injection	Ado-trastuzumab Emtansine Injection The serum concentration of Trastuzumab emtansine can be increased when it is combined with Morphine.
Apixaban	Apixaban The metabolism of Apixaban can be decreased when combined with Morphine.
Canagliflozin	Canagliflozin The serum concentration of Morphine can be increased when it is combined with Canagliflozin.
Methazolamide	Methazolamide The therapeutic efficacy of Methazolamide can be decreased when used in combination with Morphine.
Dabrafenib	Dabrafenib The metabolism of Morphine can be decreased when combined with Dabrafenib.
Trametinib	Trametinib The metabolism of Morphine can be decreased when combined with Trametinib.
Dolutegravir	Dolutegravir The serum concentration of Dolutegravir can be increased when it is combined with Morphine.
Afatinib	Afatinib The serum concentration of Morphine can be increased when it is combined with Afatinib.
Levomilnacipran	Levomilnacipran The risk or severity of serotonin syndrome can be increased when Morphine is combined with Levomilnacipran.
Vortioxetine	Vortioxetine The metabolism of Vortioxetine can be decreased when combined with Morphine.
Perampanel	Perampanel Perampanel may increase the central nervous system depressant (CNS depressant) activities of Morphine.
Lomitapide	Lomitapide The serum concentration of Lomitapide can be increased when it is combined with Morphine.
Avanafil	Avanafil The risk or severity of hypotension can be increased when Avanafil is combined with Morphine.
Ketorolac Injection	Ketorolac Injection The metabolism of Ketorolac can be decreased when combined with Morphine.
Obinutuzumab Injection	Obinutuzumab Injection The risk or severity of adverse effects can be increased when Morphine is combined with Obinutuzumab.
Simeprevir	Simeprevir The serum concentration of Morphine can be increased when it is combined with Simeprevir.
Sofosbuvir	Sofosbuvir The serum concentration of Sofosbuvir can be increased when it is combined with Morphine.
Dapagliflozin	Dapagliflozin The therapeutic efficacy of Dapagliflozin can be decreased when used in combination with Morphine.
Apremilast	Apremilast The metabolism of Morphine can be increased when combined with Apremilast.
Ceritinib	Ceritinib The serum concentration of Ceritinib can be increased when it is combined with Morphine.
Siltuximab Injection	Siltuximab Injection The metabolism of Morphine can be increased when combined with Siltuximab.
Eslicarbazepine	Eslicarbazepine The risk or severity of adverse effects can be increased when Morphine is combined with Eslicarbazepine.
Belinostat Injection	Belinostat Injection The serum concentration of Belinostat can be increased when it is combined with Morphine.
Idelalisib	Idelalisib The serum concentration of Idelalisib can be increased when it is combined with Morphine.
Empagliflozin	Empagliflozin The risk or severity of adverse effects can be increased when Morphine is combined with Empagliflozin.
Vorapaxar	Vorapaxar The serum concentration of Morphine can be increased when it is combined with Vorapaxar.
Hydrocodone	Hydrocodone Hydrocodone may increase the central nervous system depressant (CNS depressant) activities of Morphine.
Suvorexant	Suvorexant Morphine may increase the central nervous system depressant (CNS depressant) activities of Suvorexant.
Edoxaban	Edoxaban The serum concentration of Edoxaban can be increased when it is combined with Morphine.
Methamphetamine	Methamphetamine Metamfetamine may increase the analgesic activities of Morphine.
Tasimelteon	Tasimelteon The risk or severity of adverse effects can be increased when Morphine is combined with Tasimelteon.
Riociguat	Riociguat The metabolism of Riociguat can be decreased when combined with Morphine.
Nintedanib	Nintedanib The serum concentration of Nintedanib can be increased when it is combined with Morphine.
Secukinumab Injection	Secukinumab Injection The metabolism of Morphine can be increased when combined with Secukinumab.
Risperidone Injection	Risperidone Injection Morphine may increase the hypotensive activities of Risperidone.
Palbociclib	Palbociclib The serum concentration of Morphine can be increased when it is combined with Palbociclib.
Lenvatinib	Lenvatinib The metabolism of Morphine can be decreased when combined with Lenvatinib.
Naloxegol	Naloxegol The therapeutic efficacy of Morphine can be decreased when used in combination with Naloxegol.
Panobinostat	Panobinostat The serum concentration of Panobinostat can be increased when it is combined with Morphine.
Dinutuximab Injection	Dinutuximab Injection The risk or severity of adverse effects can be increased when Morphine is combined with Dinutuximab.
Haloperidol Injection	Haloperidol Injection The risk or severity of CNS depression can be increased when Morphine is combined with Haloperidol.
Amiloride	Amiloride The therapeutic efficacy of Amiloride can be decreased when used in combination with Morphine.
Isavuconazonium Injection	Isavuconazonium Injection The serum concentration of Morphine can be increased when it is combined with Isavuconazonium.
Macitentan	Macitentan Morphine may increase the hypotensive activities of Macitentan.
Flibanserin	Flibanserin The serum concentration of Morphine can be increased when it is combined with Flibanserin.
Rolapitant	Rolapitant The serum concentration of Morphine can be increased when it is combined with Rolapitant.
Daclatasvir	Daclatasvir The serum concentration of Morphine can be increased when it is combined with Daclatasvir.
Brexpiprazole	Brexpiprazole The risk or severity of adverse effects can be increased when Morphine is combined with Brexpiprazole.
Ziprasidone Injection	Ziprasidone Injection The risk or severity of adverse effects can be increased when Ziprasidone is combined with Morphine.
Cariprazine	Cariprazine The risk or severity of adverse effects can be increased when Morphine is combined with Cariprazine.
Eluxadoline	Eluxadoline The risk or severity of constipation can be increased when Morphine is combined with Eluxadoline.
Cobimetinib	Cobimetinib The serum concentration of Cobimetinib can be increased when it is combined with Morphine.
Osimertinib	Osimertinib The serum concentration of Osimertinib can be increased when it is combined with Morphine.
Rifapentine	Rifapentine The metabolism of Morphine can be increased when combined with Rifapentine.
Amphotericin B Liposomal Injection	Amphotericin B Liposomal Injection The risk or severity of adverse effects can be increased when Morphine is combined with Amphotericin B.
Dexamethasone Injection	Dexamethasone Injection The metabolism of Morphine can be increased when combined with Dexamethasone.
Brivaracetam Injection	Brivaracetam Injection The risk or severity of adverse effects can be increased when Morphine is combined with Brivaracetam.
Venetoclax	Venetoclax The serum concentration of Morphine can be increased when it is combined with Venetoclax.
Cobicistat	Cobicistat The serum concentration of Morphine can be increased when it is combined with Cobicistat.
Selexipag	Selexipag The metabolism of Selexipag can be decreased when combined with Morphine.
Pimavanserin	Pimavanserin The risk or severity of adverse effects can be increased when Morphine is combined with Pimavanserin.
Diphenhydramine Injection	Diphenhydramine Injection The risk or severity of adverse effects can be increased when Morphine is combined with Diphenhydramine.
Furosemide Injection	Furosemide Injection The therapeutic efficacy of Furosemide can be decreased when used in combination with Morphine.
Rucaparib	Rucaparib The metabolism of Morphine can be decreased when combined with Rucaparib.
Brigatinib	Brigatinib The metabolism of Brigatinib can be decreased when combined with Morphine.
Doxepin (Insomnia)	Doxepin (Insomnia) The risk or severity of adverse effects can be increased when Morphine is combined with Doxepin.
Plecanatide	Plecanatide The therapeutic efficacy of Plecanatide can be decreased when used in combination with Morphine.
Safinamide	Safinamide Safinamide may increase the analgesic activities of Morphine.
Naldemedine	Naldemedine The therapeutic efficacy of Morphine can be decreased when used in combination with Naldemedine.
Midostaurin	Midostaurin The metabolism of Morphine can be decreased when combined with Midostaurin.
Neratinib	Neratinib The serum concentration of Morphine can be increased when it is combined with Neratinib.
Enasidenib	Enasidenib The metabolism of Morphine can be decreased when combined with Enasidenib.
Inotuzumab Ozogamicin Injection	Inotuzumab Ozogamicin Injection The serum concentration of Inotuzumab ozogamicin can be increased when it is combined with Morphine.
Copanlisib Injection	Copanlisib Injection The serum concentration of Copanlisib can be increased when it is combined with Morphine.
Abemaciclib	Abemaciclib The serum concentration of Abemaciclib can be increased when it is combined with Morphine.
Betrixaban	Betrixaban The serum concentration of Betrixaban can be increased when it is combined with Morphine.
Letermovir	Letermovir The metabolism of Morphine can be decreased when combined with Letermovir.
Ertugliflozin	Ertugliflozin The metabolism of Morphine can be decreased when combined with Ertugliflozin.
Buprenorphine Injection	Buprenorphine Injection Morphine may increase the central nervous system depressant (CNS depressant) activities of Buprenorphine.
Apalutamide	Apalutamide The serum concentration of Morphine can be decreased when it is combined with Apalutamide.
Fostamatinib	Fostamatinib The metabolism of Morphine can be decreased when combined with Fostamatinib.
Avatrombopag	Avatrombopag The serum concentration of Avatrombopag can be increased when it is combined with Morphine.
Baricitinib	Baricitinib The serum concentration of Baricitinib can be increased when it is combined with Morphine.
Lofexidine	Lofexidine The therapeutic efficacy of Morphine can be increased when used in combination with Lofexidine.
Eliglustat	Eliglustat The serum concentration of Eliglustat can be increased when it is combined with Morphine.
Binimetinib	Binimetinib The serum concentration of Binimetinib can be increased when it is combined with Morphine.
Ivosidenib	Ivosidenib The serum concentration of Morphine can be increased when it is combined with Ivosidenib.
Lusutrombopag	Lusutrombopag The serum concentration of Lusutrombopag can be increased when it is combined with Morphine.
Elagolix	Elagolix The metabolism of Elagolix can be decreased when combined with Morphine.
Cannabidiol	Cannabidiol The risk or severity of adverse effects can be increased when Cannabidiol is combined with Morphine.
Dacomitinib	Dacomitinib The serum concentration of Dacomitinib can be increased when it is combined with Morphine.
Duvelisib	Duvelisib The serum concentration of Duvelisib can be increased when it is combined with Morphine.
Omadacycline	Omadacycline The serum concentration of Omadacycline can be increased when it is combined with Morphine.
Sarecycline	Sarecycline The serum concentration of Morphine can be increased when it is combined with Sarecycline.
Stiripentol	Stiripentol The risk or severity of adverse effects can be increased when Morphine is combined with Stiripentol.
Talazoparib	Talazoparib The serum concentration of Talazoparib can be increased when it is combined with Morphine.
Gilteritinib	Gilteritinib The serum concentration of Gilteritinib can be increased when it is combined with Morphine.
Glasdegib	Glasdegib The serum concentration of Morphine can be increased when it is combined with Glasdegib.
Lorlatinib	Lorlatinib The metabolism of Lorlatinib can be decreased when combined with Morphine.
Larotrectinib	Larotrectinib The serum concentration of Larotrectinib can be increased when it is combined with Morphine.
Paclitaxel (with albumin) Injection	Paclitaxel (with albumin) Injection The metabolism of Paclitaxel can be decreased when combined with Morphine.
Rifamycin	Rifamycin The serum concentration of Morphine can be increased when it is combined with Rifamycin.
Prucalopride	Prucalopride The therapeutic efficacy of Prucalopride can be decreased when used in combination with Morphine.
Magnesium Citrate	Magnesium Citrate The therapeutic efficacy of Magnesium citrate can be decreased when used in combination with Morphine.
Emapalumab-lzsg Injection	Emapalumab-lzsg Injection The metabolism of Morphine can be increased when combined with Emapalumab.
Erdafitinib	Erdafitinib The serum concentration of Morphine can be increased when it is combined with Erdafitinib.
Alpelisib	Alpelisib The metabolism of Morphine can be decreased when combined with Alpelisib.
Brexanolone Injection	Brexanolone Injection The risk or severity of adverse effects can be increased when Morphine is combined with Brexanolone.
Solriamfetol	Solriamfetol The risk or severity of adverse effects can be increased when Morphine is combined with Solriamfetol.
Darolutamide	Darolutamide The serum concentration of Darolutamide can be increased when it is combined with Morphine.
Triclabendazole	Triclabendazole The metabolism of Morphine can be decreased when combined with Triclabendazole.
Entrectinib	Entrectinib The serum concentration of Morphine can be increased when it is combined with Entrectinib.
Pexidartinib	Pexidartinib The metabolism of Morphine can be decreased when combined with Pexidartinib.
Istradefylline	Istradefylline The metabolism of Istradefylline can be decreased when combined with Morphine.
Pitolisant	Pitolisant The serum concentration of Morphine can be decreased when it is combined with Pitolisant.
Fedratinib	Fedratinib The serum concentration of Morphine can be increased when it is combined with Fedratinib.
Lefamulin	Lefamulin The serum concentration of Lefamulin can be increased when it is combined with Morphine.
Phenytoin Injection	Phenytoin Injection The metabolism of Phenytoin can be decreased when combined with Morphine.
Fosphenytoin Injection	Fosphenytoin Injection The metabolism of Fosphenytoin can be decreased when combined with Morphine.
Enfortumab vedotin-ejfv Injection	Enfortumab vedotin-ejfv Injection The serum concentration of Enfortumab vedotin can be increased when it is combined with Morphine.
Lumateperone	Lumateperone The risk or severity of adverse effects can be increased when Morphine is combined with Lumateperone.
Lasmiditan	Lasmiditan The risk or severity of serotonin syndrome can be increased when Morphine is combined with Lasmiditan.
Ubrogepant	Ubrogepant The serum concentration of Ubrogepant can be increased when it is combined with Morphine.
Tazemetostat	Tazemetostat The serum concentration of Tazemetostat can be increased when it is combined with Morphine.
Cenobamate	Cenobamate The serum concentration of Morphine can be decreased when it is combined with Cenobamate.
Ozanimod	Ozanimod The metabolism of Ozanimod can be decreased when combined with Morphine.
Selumetinib	Selumetinib The metabolism of Selumetinib can be decreased when combined with Morphine.
Rimegepant	Rimegepant The serum concentration of Rimegepant can be increased when it is combined with Morphine.
Tucatinib	Tucatinib Morphine may decrease the excretion rate of Tucatinib which could result in a higher serum level.
Remdesivir Injection	Remdesivir Injection The serum concentration of Remdesivir can be increased when it is combined with Morphine.
Ripretinib	Ripretinib The serum concentration of Morphine can be increased when it is combined with Ripretinib.
Selpercatinib	Selpercatinib The serum concentration of Morphine can be increased when it is combined with Selpercatinib.
Lemborexant	Lemborexant The risk or severity of adverse effects can be increased when Morphine is combined with Lemborexant.
Fenfluramine	Fenfluramine The risk or severity of serotonin syndrome can be increased when Morphine is combined with Fenfluramine.
Fostemsavir	Fostemsavir The serum concentration of Fostemsavir can be increased when it is combined with Morphine.
Belantamab Mafodotin-blmf Injection	Belantamab Mafodotin-blmf Injection The serum concentration of Belantamab mafodotin can be increased when it is combined with Morphine.
Pralsetinib	Pralsetinib The serum concentration of Morphine can be increased when it is combined with Pralsetinib.
Opicapone	Opicapone The metabolism of Morphine can be decreased when combined with Opicapone.
Satralizumab-mwge Injection	Satralizumab-mwge Injection The serum concentration of Morphine can be decreased when it is combined with Satralizumab.
Progestin-Only (drospirenone) Oral Contraceptives	Progestin-Only (drospirenone) Oral Contraceptives The therapeutic efficacy of Drospirenone can be decreased when used in combination with Morphine.
Viloxazine	Viloxazine The risk or severity of adverse effects can be increased when Morphine is combined with Viloxazine.
Theophylline	Theophylline The metabolism of Morphine can be decreased when combined with Theophylline.
Indomethacin	Indomethacin The metabolism of Morphine can be decreased when combined with Indomethacin.
Mefenamic Acid	Mefenamic Acid The metabolism of Morphine can be decreased when combined with Mefenamic acid.
Naproxen	Naproxen The metabolism of Naproxen can be decreased when combined with Morphine.
Trazodone	Trazodone The risk or severity of serotonin syndrome can be increased when Trazodone is combined with Morphine.
Phenobarbital	Phenobarbital The risk or severity of adverse effects can be increased when Phenobarbital is combined with Morphine.
Metaxalone	Metaxalone The risk or severity of respiratory depression can be increased when Morphine is combined with Metaxalone.
Levorphanol	Levorphanol The risk or severity of adverse effects can be increased when Morphine is combined with Levorphanol.
Primidone	Primidone The risk or severity of adverse effects can be increased when Primidone is combined with Morphine.
Methsuximide	Methsuximide The risk or severity of adverse effects can be increased when Morphine is combined with Methsuximide.
Diethylpropion	Diethylpropion Diethylpropion may increase the analgesic activities of Morphine.
Chlorpromazine	Chlorpromazine The risk or severity of adverse effects can be increased when Chlorpromazine is combined with Morphine.
Diazepam	Diazepam The risk or severity of adverse effects can be increased when Morphine is combined with Diazepam.
Oxazepam	Oxazepam The risk or severity of adverse effects can be increased when Morphine is combined with Oxazepam.
Flurazepam	Flurazepam The risk or severity of adverse effects can be increased when Morphine is combined with Flurazepam.
Clorazepate	Clorazepate The risk or severity of adverse effects can be increased when Morphine is combined with Clorazepic acid.
Lorazepam	Lorazepam The risk or severity of adverse effects can be increased when Morphine is combined with Lorazepam.
Phenoxybenzamine	Phenoxybenzamine The risk or severity of adverse effects can be increased when Morphine is combined with Phenoxybenzamine.
Amantadine	Amantadine The risk or severity of adverse effects can be increased when Morphine is combined with Amantadine.
Codeine	Codeine The risk or severity of adverse effects can be increased when Morphine is combined with Codeine.
Meprobamate	Meprobamate The risk or severity of adverse effects can be increased when Morphine is combined with Meprobamate.
Chlordiazepoxide	Chlordiazepoxide The risk or severity of adverse effects can be increased when Morphine is combined with Chlordiazepoxide.
Bromocriptine	Bromocriptine The risk or severity of adverse effects can be increased when Morphine is combined with Bromocriptine.
Tranylcypromine	Tranylcypromine Tranylcypromine may increase the analgesic activities of Morphine.
Phenelzine	Phenelzine Phenelzine may increase the analgesic activities of Morphine.
Procarbazine	Procarbazine Procarbazine may increase the analgesic activities of Morphine.
Ergoloid Mesylates	Ergoloid Mesylates The risk or severity of adverse effects can be increased when Morphine is combined with Ergoloid mesylate.
Minocycline	Minocycline Minocycline may increase the central nervous system depressant (CNS depressant) activities of Morphine.
Prochlorperazine	Prochlorperazine The risk or severity of hypotension and CNS depression can be increased when Prochlorperazine is combined with Morphine.
Thioridazine	Thioridazine The risk or severity of adverse effects can be increased when Morphine is combined with Thioridazine.
Trifluoperazine	Trifluoperazine The risk or severity of hypotension and CNS depression can be increased when Trifluoperazine is combined with Morphine.
Dapsone	Dapsone The metabolism of Morphine can be decreased when combined with Dapsone.
Sulfadiazine	Sulfadiazine The metabolism of Sulfadiazine can be decreased when combined with Morphine.
Oxycodone	Oxycodone The risk or severity of adverse effects can be increased when Morphine is combined with Oxycodone.
Methadone	Methadone The risk or severity of adverse effects can be increased when Methadone is combined with Morphine.
Oxybutynin	Oxybutynin The risk or severity of adverse effects can be increased when Oxybutynin is combined with Morphine.
Benztropine	Benztropine The risk or severity of adverse effects can be increased when Morphine is combined with Benzatropine.
Maprotiline	Maprotiline The risk or severity of adverse effects can be increased when Morphine is combined with Maprotiline.
Ibuprofen	Ibuprofen The metabolism of Ibuprofen can be decreased when combined with Morphine.
Trihexyphenidyl	Trihexyphenidyl The risk or severity of adverse effects can be increased when Morphine is combined with Trihexyphenidyl.
Orphenadrine	Orphenadrine Morphine may increase the central nervous system depressant (CNS depressant) activities of Orphenadrine.
Perphenazine	Perphenazine The risk or severity of hypotension and CNS depression can be increased when Perphenazine is combined with Morphine.
Fluphenazine	Fluphenazine The risk or severity of hypotension and CNS depression can be increased when Fluphenazine is combined with Morphine.
Phentermine	Phentermine Phentermine may increase the analgesic activities of Morphine.
Amoxapine	Amoxapine The risk or severity of adverse effects can be increased when Amoxapine is combined with Morphine.
Hydrocortisone	Hydrocortisone The metabolism of Morphine can be increased when combined with Hydrocortisone.
Dactinomycin	Dactinomycin The serum concentration of Dactinomycin can be increased when it is combined with Morphine.
Carbamazepine	Carbamazepine The risk or severity of adverse effects can be increased when Morphine is combined with Carbamazepine.
Molindone	Molindone The risk or severity of adverse effects can be increased when Morphine is combined with Molindone.
Methyldopa	Methyldopa The risk or severity of adverse effects can be increased when Morphine is combined with Methyldopa.
Clonidine	Clonidine The risk or severity of sedation can be increased when Clonidine is combined with Morphine.
Prazosin	Prazosin The risk or severity of adverse effects can be increased when Morphine is combined with Prazosin.
Hydralazine	Hydralazine The risk or severity of adverse effects can be increased when Morphine is combined with Hydralazine.
Cimetidine	Cimetidine The risk or severity of adverse effects can be increased when Cimetidine is combined with Morphine.
Warfarin	Warfarin The metabolism of Morphine can be decreased when combined with Warfarin.
Clonazepam	Clonazepam The risk or severity of adverse effects can be increased when Morphine is combined with Clonazepam.
Loperamide	Loperamide The serum concentration of Loperamide can be increased when it is combined with Morphine.
Promethazine	Promethazine The risk or severity of adverse effects can be increased when Promethazine is combined with Morphine.
Griseofulvin	Griseofulvin The metabolism of Morphine can be increased when combined with Griseofulvin.
Digoxin	Digoxin The serum concentration of Digoxin can be increased when it is combined with Morphine.
Loxapine	Loxapine The serum concentration of Morphine can be increased when it is combined with Loxapine.
Chloroquine	Chloroquine The metabolism of Chloroquine can be decreased when combined with Morphine.
Quinine	Quinine The serum concentration of Morphine can be increased when it is combined with Quinine.
Ethosuximide	Ethosuximide The risk or severity of adverse effects can be increased when Morphine is combined with Ethosuximide.
Triamterene	Triamterene The therapeutic efficacy of Triamterene can be decreased when used in combination with Morphine.
Lactulose	Lactulose The therapeutic efficacy of Lactulose can be decreased when used in combination with Morphine.
Sulfinpyrazone	Sulfinpyrazone The metabolism of Morphine can be decreased when combined with Sulfinpyrazone.
Chlorothiazide	Chlorothiazide The therapeutic efficacy of Chlorothiazide can be decreased when used in combination with Morphine.
Chlorthalidone	Chlorthalidone The therapeutic efficacy of Chlorthalidone can be decreased when used in combination with Morphine.
Metolazone	Metolazone The therapeutic efficacy of Metolazone can be decreased when used in combination with Morphine.
Isosorbide	Isosorbide The therapeutic efficacy of Isosorbide can be decreased when used in combination with Morphine.
Secobarbital	Secobarbital The risk or severity of adverse effects can be increased when Secobarbital is combined with Morphine.
Desipramine	Desipramine The risk or severity of adverse effects can be increased when Morphine is combined with Desipramine.
Amitriptyline	Amitriptyline The risk or severity of adverse effects can be increased when Morphine is combined with Amitriptyline.
Imipramine	Imipramine The risk or severity of adverse effects can be increased when Morphine is combined with Imipramine.
Probenecid	Probenecid The metabolism of Morphine can be decreased when combined with Probenecid.
Quinidine	Quinidine The risk or severity of adverse effects can be increased when Morphine is combined with Quinidine.
Isoniazid	Isoniazid The risk or severity of serotonin syndrome can be increased when Morphine is combined with Isoniazid.
Rifampin	Rifampin The metabolism of Morphine can be increased when combined with Rifampicin.
Disopyramide	Disopyramide The risk or severity of adverse effects can be increased when Morphine is combined with Disopyramide.
Valproic Acid	Valproic Acid The metabolism of Morphine can be decreased when combined with Valproic acid.
Tamoxifen	Tamoxifen The serum concentration of Morphine can be increased when it is combined with Tamoxifen.
Butabarbital	Butabarbital The risk or severity of adverse effects can be increased when Butabarbital is combined with Morphine.
Levothyroxine	Levothyroxine The metabolism of Morphine can be decreased when combined with Levothyroxine.
Tolbutamide	Tolbutamide The metabolism of Tolbutamide can be decreased when combined with Morphine.
Dextromethorphan	Dextromethorphan The risk or severity of adverse effects can be increased when Morphine is combined with Dextromethorphan.
Cyclobenzaprine	Cyclobenzaprine The risk or severity of CNS depression can be increased when Morphine is combined with Cyclobenzaprine.
Baclofen	Baclofen The risk or severity of adverse effects can be increased when Baclofen is combined with Morphine.
Doxylamine	Doxylamine Doxylamine may increase the central nervous system depressant (CNS depressant) activities of Morphine.
Cyproheptadine	Cyproheptadine The risk or severity of adverse effects can be increased when Morphine is combined with Cyproheptadine.
Clemastine	Clemastine The risk or severity of adverse effects can be increased when Clemastine is combined with Morphine.
Chlorpheniramine	Chlorpheniramine The risk or severity of adverse effects can be increased when Morphine is combined with Chlorpheniramine.
Brompheniramine	Brompheniramine The risk or severity of adverse effects can be increased when Morphine is combined with Brompheniramine.
Meclizine	Meclizine The risk or severity of adverse effects can be increased when Morphine is combined with Meclizine.
Methyclothiazide	Methyclothiazide The therapeutic efficacy of Methyclothiazide can be decreased when used in combination with Morphine.
Hydrochlorothiazide	Hydrochlorothiazide The therapeutic efficacy of Hydrochlorothiazide can be decreased when used in combination with Morphine.
Dantrolene	Dantrolene The risk or severity of adverse effects can be increased when Morphine is combined with Dantrolene.
Chlorzoxazone	Chlorzoxazone The risk or severity of adverse effects can be increased when Morphine is combined with Chlorzoxazone.
Carisoprodol	Carisoprodol The risk or severity of adverse effects can be increased when Carisoprodol is combined with Morphine.
Methocarbamol	Methocarbamol The risk or severity of adverse effects can be increased when Morphine is combined with Methocarbamol.
Propranolol (Cardiovascular)	Propranolol (Cardiovascular) The risk or severity of adverse effects can be increased when Morphine is combined with Propranolol.
Minoxidil	Minoxidil The risk or severity of adverse effects can be increased when Morphine is combined with Minoxidil.
Pseudoephedrine	Pseudoephedrine Pseudoephedrine may increase the analgesic activities of Morphine.
Nortriptyline	Nortriptyline The risk or severity of adverse effects can be increased when Morphine is combined with Nortriptyline.
Spironolactone	Spironolactone The metabolism of Morphine can be decreased when combined with Spironolactone.
Amphotericin B Injection	Amphotericin B Injection The risk or severity of adverse effects can be increased when Morphine is combined with Amphotericin B.
Nadolol	Nadolol The risk or severity of adverse effects can be increased when Morphine is combined with Nadolol.
Butorphanol Injection	Butorphanol Injection The therapeutic efficacy of Butorphanol can be decreased when used in combination with Morphine.
Nalbuphine Injection	Nalbuphine Injection The therapeutic efficacy of Nalbuphine can be decreased when used in combination with Morphine.
Trimethobenzamide	Trimethobenzamide The risk or severity of adverse effects can be increased when Morphine is combined with Trimethobenzamide.
Clomiphene	Clomiphene The serum concentration of Clomifene can be increased when it is combined with Morphine.
Flavoxate	Flavoxate The risk or severity of adverse effects can be increased when Morphine is combined with Flavoxate.
Papaverine	Papaverine The risk or severity of adverse effects can be increased when Morphine is combined with Papaverine.
Fluorouracil Injection	Fluorouracil Injection The metabolism of Fluorouracil can be decreased when combined with Morphine.
Colchicine	Colchicine The metabolism of Morphine can be decreased when combined with Colchicine.
Acetazolamide	Acetazolamide The risk or severity of adverse effects can be increased when Morphine is combined with Acetazolamide.
Ketoconazole	Ketoconazole The serum concentration of Morphine can be increased when it is combined with Ketoconazole.
Pyrantel	Pyrantel The risk or severity of adverse effects can be increased when Morphine is combined with Pyrantel.
Vincristine Injection	Vincristine Injection The serum concentration of Vincristine can be increased when it is combined with Morphine.
Captopril	Captopril The risk or severity of adverse effects can be increased when Morphine is combined with Captopril.
Dipyridamole	Dipyridamole The risk or severity of adverse effects can be increased when Morphine is combined with Dipyridamole.
Isoxsuprine	Isoxsuprine The risk or severity of adverse effects can be increased when Morphine is combined with Isoxsuprine.
Vinblastine	Vinblastine The serum concentration of Vinblastine can be increased when it is combined with Morphine.
Ethacrynic Acid	Ethacrynic Acid The therapeutic efficacy of Etacrynic acid can be decreased when used in combination with Morphine.
Metoprolol	Metoprolol The risk or severity of adverse effects can be increased when Morphine is combined with Metoprolol.
Hydroxyzine	Hydroxyzine Hydroxyzine may increase the central nervous system depressant (CNS depressant) activities of Morphine.
Thiothixene	Thiothixene The risk or severity of adverse effects can be increased when Morphine is combined with Thiothixene.
Alprazolam	Alprazolam The risk or severity of adverse effects can be increased when Morphine is combined with Alprazolam.
Temazepam	Temazepam The risk or severity of adverse effects can be increased when Morphine is combined with Temazepam.
Triazolam	Triazolam The risk or severity of adverse effects can be increased when Morphine is combined with Triazolam.
Dicyclomine	Dicyclomine The risk or severity of adverse effects can be increased when Morphine is combined with Dicyclomine.
Hyoscyamine	Hyoscyamine The risk or severity of adverse effects can be increased when Morphine is combined with Hyoscyamine.
Propantheline	Propantheline The risk or severity of adverse effects can be increased when Morphine is combined with Propantheline.
Trimethoprim	Trimethoprim The metabolism of Morphine can be decreased when combined with Trimethoprim.
Diltiazem	Diltiazem The metabolism of Morphine can be decreased when combined with Diltiazem.
Nifedipine	Nifedipine The metabolism of Morphine can be decreased when combined with Nifedipine.
Timolol	Timolol The risk or severity of adverse effects can be increased when Morphine is combined with Timolol.
Verapamil	Verapamil The serum concentration of Morphine can be increased when it is combined with Verapamil.
Atenolol	Atenolol The risk or severity of adverse effects can be increased when Morphine is combined with Atenolol.
Pindolol	Pindolol The risk or severity of adverse effects can be increased when Morphine is combined with Pindolol.
Piroxicam	Piroxicam The metabolism of Morphine can be decreased when combined with Piroxicam.
Bumetanide	Bumetanide The therapeutic efficacy of Bumetanide can be decreased when used in combination with Morphine.
Etoposide	Etoposide The serum concentration of Etoposide can be increased when it is combined with Morphine.
Indapamide	Indapamide The therapeutic efficacy of Indapamide can be decreased when used in combination with Morphine.
Pentoxifylline	Pentoxifylline The risk or severity of hypotension can be increased when Pentoxifylline is combined with Morphine.
Labetalol	Labetalol The risk or severity of adverse effects can be increased when Morphine is combined with Labetalol.
Gemfibrozil	Gemfibrozil The metabolism of Morphine can be decreased when combined with Gemfibrozil.
Guanabenz	Guanabenz Morphine may increase the hypotensive activities of Guanabenz.
Ketoprofen	Ketoprofen The metabolism of Morphine can be decreased when combined with Ketoprofen.
Pimozide	Pimozide The risk or severity of adverse effects can be increased when Morphine is combined with Pimozide.
Enalapril	Enalapril The risk or severity of adverse effects can be increased when Morphine is combined with Enalapril.
Flurbiprofen	Flurbiprofen The metabolism of Morphine can be decreased when combined with Flurbiprofen.
Amiodarone	Amiodarone The metabolism of Amiodarone can be decreased when combined with Morphine.
Buspirone	Buspirone The risk or severity of serotonin syndrome can be increased when Morphine is combined with Buspirone.
Lovastatin	Lovastatin The metabolism of Morphine can be decreased when combined with Lovastatin.
Diclofenac	Diclofenac The metabolism of Diclofenac can be decreased when combined with Morphine.
Fluoxetine	Fluoxetine The risk or severity of serotonin syndrome can be increased when Fluoxetine is combined with Morphine.
Nimodipine	Nimodipine The risk or severity of adverse effects can be increased when Morphine is combined with Nimodipine.
Clozapine	Clozapine The risk or severity of adverse effects can be increased when Morphine is combined with Clozapine.
Estazolam	Estazolam The risk or severity of adverse effects can be increased when Morphine is combined with Estazolam.
Clarithromycin	Clarithromycin The serum concentration of Morphine can be increased when it is combined with Clarithromycin.
Benazepril	Benazepril The risk or severity of adverse effects can be increased when Morphine is combined with Benazepril.
Felodipine	Felodipine The metabolism of Felodipine can be decreased when combined with Morphine.
Fosinopril	Fosinopril The risk or severity of adverse effects can be increased when Morphine is combined with Fosinopril.
Pravastatin	Pravastatin The serum concentration of Morphine can be increased when it is combined with Pravastatin.
Quinapril	Quinapril The risk or severity of adverse effects can be increased when Morphine is combined with Quinapril.
Ramipril	Ramipril The risk or severity of adverse effects can be increased when Morphine is combined with Ramipril.
Simvastatin	Simvastatin The serum concentration of Simvastatin can be increased when it is combined with Morphine.
Amlodipine	Amlodipine The risk or severity of adverse effects can be increased when Morphine is combined with Amlodipine.
Itraconazole	Itraconazole The serum concentration of Morphine can be increased when it is combined with Itraconazole.
Lisinopril	Lisinopril The risk or severity of adverse effects can be increased when Morphine is combined with Lisinopril.
Rifabutin	Rifabutin The metabolism of Morphine can be increased when combined with Rifabutin.
Sotalol	Sotalol The risk or severity of adverse effects can be increased when Morphine is combined with Sotalol.
Bisoprolol	Bisoprolol The serum concentration of Bisoprolol can be increased when it is combined with Morphine.
Zolpidem	Zolpidem Morphine may increase the central nervous system depressant (CNS depressant) activities of Zolpidem.
Doxazosin	Doxazosin The risk or severity of adverse effects can be increased when Morphine is combined with Doxazosin.
Terazosin	Terazosin The risk or severity of adverse effects can be increased when Morphine is combined with Terazosin.
Isradipine	Isradipine The risk or severity of adverse effects can be increased when Morphine is combined with Isradipine.
Omeprazole	Omeprazole The metabolism of Omeprazole can be decreased when combined with Morphine.
Cisapride	Cisapride The metabolism of Cisapride can be decreased when combined with Morphine.
Gabapentin	Gabapentin The serum concentration of Gabapentin can be increased when it is combined with Morphine.
Fluvastatin	Fluvastatin The metabolism of Morphine can be decreased when combined with Fluvastatin.
Venlafaxine	Venlafaxine The risk or severity of adverse effects can be increased when Venlafaxine is combined with Morphine.
Fluvoxamine	Fluvoxamine The risk or severity of serotonin syndrome can be increased when Morphine is combined with Fluvoxamine.
Nefazodone	Nefazodone The risk or severity of serotonin syndrome can be increased when Nefazodone is combined with Morphine.
Lamotrigine	Lamotrigine The risk or severity of adverse effects can be increased when Lamotrigine is combined with Morphine.
Losartan	Losartan The metabolism of Morphine can be decreased when combined with Losartan.
Tramadol	Tramadol The risk or severity of serotonin syndrome can be increased when Tramadol is combined with Morphine.
Moexipril	Moexipril The risk or severity of adverse effects can be increased when Morphine is combined with Moexipril.
Lansoprazole	Lansoprazole The metabolism of Lansoprazole can be decreased when combined with Morphine.
Ifosfamide Injection	Ifosfamide Injection The metabolism of Morphine can be increased when combined with Ifosfamide.
Nicardipine	Nicardipine The risk or severity of adverse effects can be increased when Nicardipine is combined with Morphine.
Bupropion	Bupropion The risk or severity of adverse effects can be increased when Morphine is combined with Bupropion.
Ticlopidine	Ticlopidine The therapeutic efficacy of Ticlopidine can be decreased when used in combination with Morphine.
Saquinavir	Saquinavir The serum concentration of Saquinavir can be increased when it is combined with Morphine.
Nisoldipine	Nisoldipine The risk or severity of adverse effects can be increased when Morphine is combined with Nisoldipine.
Riluzole	Riluzole The risk or severity of adverse effects can be increased when Morphine is combined with Riluzole.
Amifostine Injection	Amifostine Injection The risk or severity of adverse effects can be increased when Morphine is combined with Amifostine.
Anastrozole	Anastrozole The metabolism of Anastrozole can be decreased when combined with Morphine.
Gemcitabine Injection	Gemcitabine Injection The serum concentration of Gemcitabine can be increased when it is combined with Morphine.
Indinavir	Indinavir The metabolism of Morphine can be decreased when combined with Indinavir.
Ritonavir	Ritonavir The serum concentration of Morphine can be increased when it is combined with Ritonavir.
Clomipramine	Clomipramine The risk or severity of adverse effects can be increased when Morphine is combined with Clomipramine.
Zafirlukast	Zafirlukast The metabolism of Morphine can be decreased when combined with Zafirlukast.
Mirtazapine	Mirtazapine Morphine may increase the serotonergic activities of Mirtazapine.
Trandolapril	Trandolapril The risk or severity of adverse effects can be increased when Morphine is combined with Trandolapril.
Topiramate	Topiramate The risk or severity of adverse effects can be increased when Topiramate is combined with Morphine.
Valsartan	Valsartan The risk or severity of adverse effects can be increased when Morphine is combined with Valsartan.
Pramipexole	Pramipexole Morphine may increase the sedative activities of Pramipexole.
Donepezil	Donepezil The risk or severity of adverse effects can be increased when Morphine is combined with Donepezil.
Nelfinavir	Nelfinavir The metabolism of Morphine can be increased when combined with Nelfinavir.
Fexofenadine	Fexofenadine The serum concentration of Fexofenadine can be increased when it is combined with Morphine.
Loratadine	Loratadine The metabolism of Morphine can be decreased when combined with Loratadine.
Carvedilol	Carvedilol The serum concentration of Morphine can be increased when it is combined with Carvedilol.
Nilutamide	Nilutamide The metabolism of Morphine can be decreased when combined with Nilutamide.
Selegiline	Selegiline Selegiline may increase the analgesic activities of Morphine.
Sertraline	Sertraline The risk or severity of serotonin syndrome can be increased when Morphine is combined with Sertraline.
Propafenone	Propafenone The serum concentration of Propafenone can be increased when it is combined with Morphine.
Raloxifene	Raloxifene The metabolism of Morphine can be decreased when combined with Raloxifene.
Irbesartan	Irbesartan The metabolism of Morphine can be decreased when combined with Irbesartan.
Tamsulosin	Tamsulosin The risk or severity of adverse effects can be increased when Morphine is combined with Tamsulosin.
Ropinirole	Ropinirole Morphine may increase the sedative activities of Ropinirole.
Quetiapine	Quetiapine The risk or severity of adverse effects can be increased when Morphine is combined with Quetiapine.
Cetirizine	Cetirizine The risk or severity of adverse effects can be increased when Morphine is combined with Cetirizine.
Paroxetine	Paroxetine The risk or severity of serotonin syndrome can be increased when Paroxetine is combined with Morphine.
Tolcapone	Tolcapone The risk or severity of adverse effects can be increased when Morphine is combined with Tolcapone.
Citalopram	Citalopram The risk or severity of serotonin syndrome can be increased when Morphine is combined with Citalopram.
Efavirenz	Efavirenz The metabolism of Morphine can be decreased when combined with Efavirenz.
Sildenafil	Sildenafil The serum concentration of Sildenafil can be increased when it is combined with Morphine.
Pioglitazone	Pioglitazone The metabolism of Morphine can be decreased when combined with Pioglitazone.
Celecoxib	Celecoxib The metabolism of Celecoxib can be decreased when combined with Morphine.
Rosiglitazone	Rosiglitazone The metabolism of Morphine can be decreased when combined with Rosiglitazone.
Tolterodine	Tolterodine The risk or severity of adverse effects can be increased when Morphine is combined with Tolterodine.
Thalidomide	Thalidomide Morphine may increase the central nervous system depressant (CNS depressant) activities of Thalidomide.
Levetiracetam	Levetiracetam The risk or severity of adverse effects can be increased when Morphine is combined with Levetiracetam.
Rabeprazole	Rabeprazole The metabolism of Morphine can be decreased when combined with Rabeprazole.
Terbinafine	Terbinafine The metabolism of Morphine can be decreased when combined with Terbinafine.