Theophylline
Generic name: Pronounced as (the off'' i lin)- Accurbron®
- Aerolate®
- Aquaphyllin®
- Asbron®
- Bronkodyl®
- Duraphyl®
- Elixicon®
- Elixomin®
- Elixophyllin®
- Labid®
- Lanophyllin®
- Quibron-T®
- Slo-Bid®
- Slo-Phyllin®
- Somophyllin®
- Sustaire®
- Synophylate®
- T-Phyll®
- Theo-24®
- Theo-Dur®
- Theobid®
- Theochron®
- Theoclear®
- Theolair®
- Theolixir®
- Theophyl®
- Theovent®
- Uni-dur®
- Uniphyl®

Medical Content Reviewed By HelloPharmacist Staff
Last Revised - 11/15/2019
On this page
- Why is this medication prescribed?
- How should this medicine be used?
- Other uses for this medicine
- What special precautions should I follow?
- What special dietary instructions should I follow?
- What should I do if I forget a dose?
- What side effects can this medication cause?
- What should I know about STORAGE and DISPOSAL of this medication?
- What should I do in case of OVERDOSE?
- What OTHER INFORMATION should I know?
- Drug interactions
Why is this medication prescribed?
Theophylline is used to prevent and treat wheezing, shortness of breath, and chest tightness caused by asthma, chronic bronchitis, emphysema, and other lung diseases. It relaxes and opens air passages in the lungs, making it easier to breathe.
How should this medicine be used?
Theophylline comes as an extended-release (long-acting) tablet, extended-release capsule, and a solution (liquid) to take by mouth. It usually is taken every 6, 8, 12, or 24 hours. Follow the directions on your prescription label carefully, and ask your doctor or pharmacist to explain any part you do not understand. Take theophylline exactly as directed. Do not take more or less of it or take it more often than prescribed by your doctor.
Take this medication with a full glass of water on an empty stomach, at least 1 hour before or 2 hours after a meal. Extended-release capsules (e.g., Theo-Dur Sprinkles) may be swallowed whole or opened and the contents mixed with soft food and swallowed without chewing.
Swallow the extended-release tablets whole; do not chew or crush them.
Theophylline controls symptoms of asthma and other lung diseases but does not cure them. Continue to take theophylline even if you feel well. Do not stop taking theophylline without talking to your doctor.
Other uses for this medicine
Theophylline is sometimes used to treat breathing problems in premature infants. Talk to your doctor about the possible risks of using this drug for your baby's condition.
This medication is sometimes prescribed for other uses; ask your doctor or pharmacist for more information.
What special precautions should I follow?
Before taking theophylline,
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tell your doctor and pharmacist if you are allergic to theophylline, any other medications, or any of the ingredients in theophylline preparations. Ask your pharmacist for a list of the ingredients.
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tell your doctor and pharmacist what prescription medications you are taking, especially allopurinol (Zyloprim), azithromycin (Zithromax), carbamazepine (Tegretol), cimetidine (Tagamet), ciprofloxacin (Cipro), clarithromycin (Biaxin), diuretics ('water pills'), erythromycin, lithium (Eskalith, Lithobid), oral contraceptives, phenytoin (Dilantin), prednisone (Deltasone), propranolol (Inderal), rifampin (Rifadin), tetracycline (Sumycin), and other medications for infections or heart disease.
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tell your doctor and pharmacist what prescription, nonprescription medications, vitamins, nutritional supplements, and herbal products you are taking or plan to take. Be sure to mention any of the following: ephedrine, epinephrine, phenylephrine, phenylpropanolamine, or pseudoephedrine. Many other medications may also interact with theophylline, 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.
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tell your doctor if you have or have ever had seizures, ulcers, heart disease, an overactive or underactive thyroid gland, high blood pressure, or liver disease or if you have a history of alcohol abuse.
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tell your doctor if you are pregnant, plan to become pregnant, or are breast-feeding. If you become pregnant while taking theophylline, call your doctor.
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tell your doctor if you use tobacco products. Cigarette smoking may decrease the effectiveness of theophylline.
What special dietary instructions should I follow?
Drinking or eating foods high in caffeine, like coffee, tea, cocoa, and chocolate, may increase the side effects caused by theophylline. Avoid large amounts of these substances while you are taking theophylline.
What should I do if I forget a dose?
Take the missed dose as soon as you remember it. However, if it is almost time for the next dose, skip the missed dose and continue your regular dosing schedule. Do not take a double dose to make up for a missed one. If you become severely short of breath, call your doctor.
What side effects can this medication cause?
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Theophylline may cause side effects. Tell your doctor if any of these symptoms are severe or do not go away.
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upset stomach
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stomach pain
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diarrhea
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headache
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restlessness
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difficulty falling asleep or staying asleep
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irritability
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Some side effects can be serious. If you experience any of the following symptoms, call your doctor immediately:
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vomiting
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increased or rapid heart rate
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irregular heartbeat
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seizures
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rash
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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).
What should I know about STORAGE and DISPOSAL of this medication?
Keep this medication in the container it came in, tightly closed, and out of reach of children. Store it at room temperature and away from excess heat and moisture (not in the bathroom).
It is important to keep all medication out of sight and reach of children as many containers (such as weekly pill minders and those for eye drops, creams, patches, and inhalers) are not child-resistant and young children can open them easily. To protect young children from poisoning, always lock safety caps and immediately place the medication in a safe location – one that is up and away and out of their sight and reach. http://www.upandaway.org
Unneeded medications should be disposed of in special ways to ensure that pets, children, and other people cannot consume them. However, you should not flush this medication down the toilet. Instead, the best way to dispose of your medication is through a medicine take-back program. Talk to your pharmacist or contact your local garbage/recycling department to learn about take-back programs in your community. See the FDA's Safe Disposal of Medicines website (http://goo.gl/c4Rm4p) for more information if you do not have access to a take-back program.
What should I do in case of OVERDOSE?
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.
What OTHER INFORMATION should I know?
Keep all appointments with your doctor and the laboratory. Your doctor will order certain lab tests to check your response to theophylline.
Do not change from one brand of theophylline to another without talking to your doctor.
Do not let anyone else take your medication. Ask your pharmacist any questions you have about refilling your prescription.
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 interactions
Drug | Interaction |
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Moxifloxacin | Moxifloxacin The metabolism of Theophylline can be decreased when combined with Moxifloxacin. |
Repaglinide | Repaglinide The metabolism of Repaglinide can be decreased when combined with Theophylline. |
Montelukast | Montelukast The metabolism of Theophylline can be decreased when combined with Montelukast. |
Insulin Glargine (rDNA origin) Injection | Insulin Glargine (rDNA origin) Injection The metabolism of Theophylline can be increased when combined with Insulin glargine. |
Leflunomide | Leflunomide The serum concentration of Theophylline can be decreased when it is combined with Leflunomide. |
Delavirdine | Delavirdine The metabolism of Theophylline can be decreased when combined with Delavirdine. |
Nevirapine | Nevirapine The metabolism of Theophylline can be decreased when combined with Nevirapine. |
Atorvastatin | Atorvastatin The metabolism of Atorvastatin can be decreased when combined with Theophylline. |
Dolasetron | Dolasetron The metabolism of Dolasetron can be decreased when combined with Theophylline. |
Aminophylline | Aminophylline The metabolism of Aminophylline can be decreased when combined with Theophylline. |
Anagrelide | Anagrelide The metabolism of Theophylline can be decreased when combined with Anagrelide. |
Candesartan | Candesartan The metabolism of Theophylline can be decreased when combined with Candesartan. |
Cilostazol | Cilostazol The metabolism of Cilostazol can be decreased when combined with Theophylline. |
Clopidogrel | Clopidogrel The metabolism of Theophylline can be decreased when combined with Clopidogrel. |
Erythromycin and Sulfisoxazole | Erythromycin and Sulfisoxazole The therapeutic efficacy of Erythromycin can be decreased when used in combination with Theophylline. |
Estrogen and Progestin (Oral Contraceptives) | Estrogen and Progestin (Oral Contraceptives) The metabolism of Theophylline can be decreased when combined with Conjugated estrogens. |
Fenofibrate | Fenofibrate The metabolism of Theophylline can be decreased when combined with Fenofibrate. |
Methylergonovine | Methylergonovine The metabolism of Theophylline can be decreased when combined with Methylergometrine. |
Paregoric | Paregoric The metabolism of Morphine can be decreased when combined with Theophylline. |
Penbutolol | Penbutolol The metabolism of Theophylline can be decreased when combined with Acebutolol. |
Ranitidine | Ranitidine The metabolism of Theophylline can be decreased when combined with Ranitidine. |
Tacrolimus | Tacrolimus The metabolism of Theophylline can be decreased when combined with Tacrolimus. |
Tizanidine | Tizanidine The metabolism of Tizanidine can be decreased when combined with Theophylline. |
Triamcinolone | Triamcinolone The metabolism of Theophylline can be increased when combined with Triamcinolone. |
Zolmitriptan | Zolmitriptan The metabolism of Zolmitriptan can be decreased when combined with Theophylline. |
Doxycycline Injection | Doxycycline Injection The metabolism of Theophylline can be decreased when combined with Doxycycline. |
Famotidine Injection | Famotidine Injection The metabolism of Theophylline can be decreased when combined with Famotidine. |
Fluconazole Injection | Fluconazole Injection The serum concentration of Theophylline can be increased when it is combined with Fluconazole. |
Interferon Beta-1b Injection | Interferon Beta-1b Injection The metabolism of Theophylline can be decreased when combined with Interferon beta-1b. |
Interferon Gamma-1b Injection | Interferon Gamma-1b Injection The metabolism of Theophylline can be decreased when combined with Interferon gamma-1b. |
Levofloxacin Injection | Levofloxacin Injection The metabolism of Theophylline can be decreased when combined with Levofloxacin. |
Meperidine Injection | Meperidine Injection The metabolism of Theophylline can be increased when combined with Meperidine. |
Methylprednisolone Injection | Methylprednisolone Injection The metabolism of Theophylline can be increased when combined with Methylprednisolone. |
Metoclopramide Injection | Metoclopramide Injection The metabolism of Theophylline can be decreased when combined with Metoclopramide. |
Metronidazole Injection | Metronidazole Injection The metabolism of Theophylline can be decreased when combined with Metronidazole. |
Morphine Injection | Morphine Injection The metabolism of Morphine can be decreased when combined with Theophylline. |
Zidovudine Injection | Zidovudine Injection The metabolism of Zidovudine can be decreased when combined with Theophylline. |
Altretamine | Altretamine The metabolism of Theophylline can be decreased when combined with Amphetamine. |
Cyclosporine | Cyclosporine The metabolism of Theophylline can be decreased when combined with Cyclosporine. |
Ondansetron | Ondansetron The metabolism of Theophylline can be decreased when combined with Ondansetron. |
Torsemide | Torsemide The metabolism of Theophylline can be decreased when combined with Torasemide. |
Alosetron | Alosetron The metabolism of Theophylline can be decreased when combined with Alosetron. |
Entacapone | Entacapone The metabolism of Theophylline can be decreased when combined with Entacapone. |
Hydroxychloroquine | Hydroxychloroquine The metabolism of Theophylline can be decreased when combined with Hydroxychloroquine. |
Orlistat | Orlistat The metabolism of Theophylline can be increased when combined with Orlistat. |
Oxcarbazepine | Oxcarbazepine The metabolism of Theophylline can be increased when combined with Oxcarbazepine. |
Zaleplon | Zaleplon Zaleplon may increase the excretion rate of Theophylline which could result in a lower serum level and potentially a reduction in efficacy. |
Anakinra | Anakinra The metabolism of Theophylline can be increased when combined with Anakinra. |
Trimipramine | Trimipramine The metabolism of Trimipramine can be decreased when combined with Theophylline. |
Etanercept Injection | Etanercept Injection The metabolism of Theophylline can be increased when combined with Etanercept. |
Modafinil | Modafinil The metabolism of Theophylline can be increased when combined with Modafinil. |
Tenofovir | Tenofovir The metabolism of Theophylline can be decreased when combined with Tenofovir. |
Sirolimus | Sirolimus The metabolism of Theophylline can be decreased when combined with Sirolimus. |
Epinephrine Injection | Epinephrine Injection The metabolism of Theophylline can be decreased when combined with Epinephrine. |
Escitalopram | Escitalopram The serum concentration of Theophylline can be increased when it is combined with Escitalopram. |
Zonisamide | Zonisamide Zonisamide may increase the excretion rate of Theophylline which could result in a lower serum level and potentially a reduction in efficacy. |
Adalimumab Injection | Adalimumab Injection The serum concentration of Theophylline can be decreased when it is combined with Adalimumab. |
Aripiprazole | Aripiprazole The metabolism of Aripiprazole can be decreased when combined with Theophylline. |
Atomoxetine | Atomoxetine The metabolism of Theophylline can be decreased when combined with Atomoxetine. |
Atazanavir | Atazanavir The metabolism of Theophylline can be decreased when combined with Atazanavir. |
Almotriptan | Almotriptan The metabolism of Almotriptan can be decreased when combined with Theophylline. |
Eletriptan | Eletriptan The metabolism of Theophylline can be decreased when combined with Eletriptan. |
Mefloquine | Mefloquine The metabolism of Theophylline can be decreased when combined with Mefloquine. |
Rosuvastatin | Rosuvastatin The metabolism of Theophylline can be decreased when combined with Rosuvastatin. |
Aprepitant | Aprepitant The metabolism of Theophylline can be decreased when combined with Aprepitant. |
Interferon Beta-1a Subcutaneous Injection | Interferon Beta-1a Subcutaneous Injection The metabolism of Theophylline can be decreased when combined with Interferon beta-1a. |
Tegaserod | Tegaserod The metabolism of Theophylline can be decreased when combined with Tegaserod. |
Frovatriptan | Frovatriptan The metabolism of Frovatriptan can be decreased when combined with Theophylline. |
Gemifloxacin | Gemifloxacin The metabolism of Theophylline can be decreased when combined with Gemifloxacin. |
Progesterone | Progesterone The metabolism of Theophylline can be increased when combined with Progesterone. |
Apomorphine Injection | Apomorphine Injection The metabolism of Apomorphine can be decreased when combined with Theophylline. |
Infliximab Injection | Infliximab Injection The metabolism of Theophylline can be increased when combined with Infliximab. |
Protriptyline | Protriptyline The metabolism of Protriptyline can be decreased when combined with Theophylline. |
Rifaximin | Rifaximin The metabolism of Theophylline can be increased when combined with Rifaximin. |
Duloxetine | Duloxetine The metabolism of Theophylline can be decreased when combined with Duloxetine. |
Norethindrone | Norethindrone Norethisterone may decrease the excretion rate of Theophylline which could result in a higher serum level. |
Trospium | Trospium The metabolism of Theophylline can be decreased when combined with Trospium. |
Bosentan | Bosentan The metabolism of Theophylline can be increased when combined with Bosentan. |
Cinacalcet | Cinacalcet The metabolism of Cinacalcet can be decreased when combined with Theophylline. |
Erlotinib | Erlotinib The metabolism of Theophylline can be decreased when combined with Erlotinib. |
Eszopiclone | Eszopiclone The metabolism of Eszopiclone can be decreased when combined with Theophylline. |
Solifenacin | Solifenacin The metabolism of Solifenacin can be decreased when combined with Theophylline. |
Voriconazole | Voriconazole The metabolism of Theophylline can be decreased when combined with Voriconazole. |
Dextroamphetamine | Dextroamphetamine The metabolism of Theophylline can be decreased when combined with Amphetamine. |
Entecavir | Entecavir The metabolism of Entecavir can be decreased when combined with Theophylline. |
Peginterferon Alfa-2a Injection | Peginterferon Alfa-2a Injection The metabolism of Theophylline can be decreased when combined with Peginterferon alfa-2a. |
Peginterferon Alfa-2b (PEG-Intron) | Peginterferon Alfa-2b (PEG-Intron) The serum concentration of Theophylline can be increased when it is combined with Peginterferon alfa-2b. |
Ramelteon | Ramelteon The metabolism of Ramelteon can be decreased when combined with Theophylline. |
Darifenacin | Darifenacin The metabolism of Darifenacin can be decreased when combined with Theophylline. |
Pregabalin | Pregabalin The therapeutic efficacy of Theophylline can be decreased when used in combination with Pregabalin. |
Deferasirox | Deferasirox The serum concentration of Theophylline can be increased when it is combined with Deferasirox. |
Phenylephrine | Phenylephrine The metabolism of Theophylline can be increased when combined with Phenylephrine. |
Tipranavir | Tipranavir The metabolism of Tipranavir can be decreased when combined with Theophylline. |
Felbamate | Felbamate The metabolism of Theophylline can be increased when combined with Felbamate. |
Ranolazine | Ranolazine The serum concentration of Theophylline can be increased when it is combined with Ranolazine. |
Abatacept Injection | Abatacept Injection The metabolism of Theophylline can be increased when combined with Abatacept. |
Rasagiline | Rasagiline The metabolism of Rasagiline can be decreased when combined with Theophylline. |
Imatinib | Imatinib The metabolism of Theophylline can be decreased when combined with Imatinib. |
Sitagliptin | Sitagliptin The metabolism of Sitagliptin can be decreased when combined with Theophylline. |
Gefitinib | Gefitinib The metabolism of Theophylline can be decreased when combined with Gefitinib. |
Paliperidone | Paliperidone The metabolism of Paliperidone can be decreased when combined with Theophylline. |
Bortezomib | Bortezomib The metabolism of Theophylline can be decreased when combined with Bortezomib. |
Hepatitis B Vaccine | Hepatitis B Vaccine The serum concentration of Theophylline can be increased when it is combined with Hepatitis B Vaccine (Recombinant). |
Influenza Vaccine, Inactivated or Recombinant | Influenza Vaccine, Inactivated or Recombinant The serum concentration of Theophylline can be increased when it is combined with Corynebacterium diphtheriae toxoid antigen (formaldehyde inactivated). |
Influenza Vaccine, Live Intranasal | Influenza Vaccine, Live Intranasal The serum concentration of Theophylline can be increased when it is combined with Typhoid Vaccine Live. |
Live Shingles (Zoster) Vaccine (ZVL) | Live Shingles (Zoster) Vaccine (ZVL) The serum concentration of Theophylline can be increased when it is combined with Varicella Zoster Vaccine (Live/attenuated). |
Insulin Glulisine (rDNA origin) Injection | Insulin Glulisine (rDNA origin) Injection The metabolism of Theophylline can be increased when combined with Insulin glulisine. |
Posaconazole | Posaconazole The metabolism of Theophylline can be decreased when combined with Posaconazole. |
Primaquine | Primaquine The metabolism of Theophylline can be decreased when combined with Primaquine. |
Darunavir | Darunavir The serum concentration of Theophylline can be increased when it is combined with Darunavir. |
Pemetrexed Injection | Pemetrexed Injection The metabolism of Pemetrexed can be decreased when combined with Theophylline. |
Lisdexamfetamine | Lisdexamfetamine The metabolism of Theophylline can be decreased when combined with Lisdexamfetamine. |
Nabilone | Nabilone The metabolism of Theophylline can be decreased when combined with Nabilone. |
Sorafenib | Sorafenib The metabolism of Theophylline can be decreased when combined with Sorafenib. |
Sunitinib | Sunitinib The metabolism of Theophylline can be decreased when combined with Sunitinib. |
Lapatinib | Lapatinib The metabolism of Theophylline can be decreased when combined with Lapatinib. |
Dasatinib | Dasatinib The metabolism of Theophylline can be decreased when combined with Dasatinib. |
Mexiletine | Mexiletine The metabolism of Theophylline can be decreased when combined with Mexiletine. |
Armodafinil | Armodafinil The metabolism of Theophylline can be increased when combined with Armodafinil. |
Ivermectin | Ivermectin The metabolism of Theophylline can be increased when combined with Ivermectin. |
Temsirolimus | Temsirolimus The metabolism of Theophylline can be decreased when combined with Temsirolimus. |
Nilotinib | Nilotinib The metabolism of Theophylline can be decreased when combined with Nilotinib. |
Bexarotene | Bexarotene The metabolism of Theophylline can be increased when combined with Bexarotene. |
Budesonide | Budesonide The metabolism of Theophylline can be increased when combined with Budesonide. |
Chloramphenicol Injection | Chloramphenicol Injection The metabolism of Theophylline can be decreased when combined with Chloramphenicol. |
Etravirine | Etravirine The metabolism of Theophylline can be increased when combined with Etravirine. |
Mitoxantrone Injection | Mitoxantrone Injection The metabolism of Theophylline can be decreased when combined with Mitoxantrone. |
Desvenlafaxine | Desvenlafaxine The metabolism of Theophylline can be decreased when combined with Desvenlafaxine. |
Cevimeline | Cevimeline The metabolism of Theophylline can be decreased when combined with Cevimeline. |
Nebivolol | Nebivolol The metabolism of Nebivolol can be decreased when combined with Theophylline. |
Tretinoin | Tretinoin The metabolism of Tretinoin can be decreased when combined with Theophylline. |
Bendamustine Injection | Bendamustine Injection The metabolism of Bendamustine can be decreased when combined with Theophylline. |
Pilocarpine | Pilocarpine The metabolism of Theophylline can be decreased when combined with Pilocarpine. |
Flecainide | Flecainide The metabolism of Flecainide can be decreased when combined with Theophylline. |
Certolizumab Injection | Certolizumab Injection The metabolism of Theophylline can be increased when combined with Certolizumab pegol. |
Ixabepilone Injection | Ixabepilone Injection The metabolism of Theophylline can be decreased when combined with Ixabepilone. |
Praziquantel | Praziquantel The metabolism of Praziquantel can be decreased when combined with Theophylline. |
Mitotane | Mitotane The metabolism of Theophylline can be increased when combined with Mitotane. |
Rufinamide | Rufinamide The metabolism of Theophylline can be increased when combined with Rufinamide. |
Midazolam | Midazolam The metabolism of Midazolam can be decreased when combined with Theophylline. |
Eltrombopag | Eltrombopag The metabolism of Theophylline can be decreased when combined with Eltrombopag. |
Milnacipran | Milnacipran The metabolism of Theophylline can be decreased when combined with Milnacipran. |
Febuxostat | Febuxostat The serum concentration of the active metabolites of Theophylline can be increased when Theophylline is used in combination with Febuxostat. |
Fesoterodine | Fesoterodine The metabolism of Fesoterodine can be decreased when combined with Theophylline. |
Betaxolol | Betaxolol The metabolism of Theophylline can be decreased when combined with Betaxolol. |
Iloperidone | Iloperidone The metabolism of Iloperidone can be decreased when combined with Theophylline. |
Lacosamide | Lacosamide The metabolism of Theophylline can be decreased when combined with Lacosamide. |
Everolimus | Everolimus The metabolism of Theophylline can be decreased when combined with Everolimus. |
Dronedarone | Dronedarone The serum concentration of Dronedarone can be decreased when it is combined with Theophylline. |
Palonosetron Injection | Palonosetron Injection The metabolism of Palonosetron can be decreased when combined with Theophylline. |
Tapentadol | Tapentadol The metabolism of Theophylline can be decreased when combined with Tapentadol. |
Topotecan | Topotecan The metabolism of Theophylline can be increased when combined with Topotecan. |
Golimumab Injection | Golimumab Injection The metabolism of Theophylline can be increased when combined with Golimumab. |
Pazopanib | Pazopanib The metabolism of Theophylline can be decreased when combined with Pazopanib. |
Asenapine | Asenapine The metabolism of Asenapine can be decreased when combined with Theophylline. |
Vigabatrin | Vigabatrin Vigabatrin may increase the excretion rate of Theophylline which could result in a lower serum level and potentially a reduction in efficacy. |
Pitavastatin | Pitavastatin The metabolism of Pitavastatin can be decreased when combined with Theophylline. |
Albendazole | Albendazole The metabolism of Theophylline can be decreased when combined with Albendazole. |
Levonorgestrel | Levonorgestrel Levonorgestrel may decrease the excretion rate of Theophylline which could result in a higher serum level. |
Oxymorphone | Oxymorphone The metabolism of Oxymorphone can be decreased when combined with Theophylline. |
Tocilizumab Injection | Tocilizumab Injection The metabolism of Theophylline can be increased when combined with Tocilizumab. |
Dalfampridine | Dalfampridine The risk or severity of seizure can be increased when Theophylline is combined with Dalfampridine. |
Fingolimod | Fingolimod The metabolism of Fingolimod can be decreased when combined with Theophylline. |
Cabazitaxel Injection | Cabazitaxel Injection The metabolism of Cabazitaxel can be decreased when combined with Theophylline. |
Acetaminophen Injection | Acetaminophen Injection Acetaminophen may increase the hepatotoxic activities of Theophylline. |
Vilazodone | Vilazodone The metabolism of Theophylline can be decreased when combined with Vilazodone. |
Denileukin Diftitox Injection | Denileukin Diftitox Injection The metabolism of Theophylline can be decreased when combined with Aldesleukin. |
Terbutaline Injection | Terbutaline Injection The risk or severity of adverse effects can be increased when Terbutaline is combined with Theophylline. |
Roflumilast | Roflumilast The metabolism of Theophylline can be decreased when combined with Roflumilast. |
Linagliptin | Linagliptin The metabolism of Theophylline can be decreased when combined with Linagliptin. |
Rilpivirine | Rilpivirine The metabolism of Theophylline can be decreased when combined with Rilpivirine. |
Telaprevir | Telaprevir The metabolism of Theophylline can be decreased when combined with Glecaprevir. |
Cyclophosphamide Injection | Cyclophosphamide Injection The metabolism of Theophylline can be increased when combined with Cyclophosphamide. |
Abiraterone | Abiraterone The serum concentration of Theophylline can be increased when it is combined with Abiraterone. |
Ticagrelor | Ticagrelor The metabolism of Theophylline can be decreased when combined with Ticagrelor. |
Brentuximab Vedotin Injection | Brentuximab Vedotin Injection The metabolism of Theophylline can be decreased when combined with Brentuximab vedotin. |
Clobazam | Clobazam The metabolism of Theophylline can be decreased when combined with Clobazam. |
Vemurafenib | Vemurafenib The serum concentration of Theophylline can be increased when it is combined with Vemurafenib. |
Vismodegib | Vismodegib The metabolism of Theophylline can be decreased when combined with Vismodegib. |
Ivacaftor | Ivacaftor The metabolism of Theophylline can be decreased when combined with Ivacaftor. |
Axitinib | Axitinib The metabolism of Axitinib can be decreased when combined with Theophylline. |
Crizotinib | Crizotinib The metabolism of Theophylline can be decreased when combined with Crizotinib. |
Cabergoline | Cabergoline The metabolism of Theophylline can be decreased when combined with Cabergoline. |
Naloxone Injection | Naloxone Injection The metabolism of Theophylline can be decreased when combined with Naloxone. |
Ezogabine | Ezogabine Tiagabine may increase the excretion rate of Theophylline which could result in a lower serum level and potentially a reduction in efficacy. |
Enzalutamide | Enzalutamide The metabolism of Theophylline can be increased when combined with Enzalutamide. |
Mirabegron | Mirabegron The serum concentration of Theophylline can be increased when it is combined with Mirabegron. |
Regorafenib | Regorafenib The metabolism of Theophylline can be decreased when combined with Regorafenib. |
Bosutinib | Bosutinib The metabolism of Theophylline can be decreased when combined with Bosutinib. |
Corticotropin, Repository Injection | Corticotropin, Repository Injection The metabolism of Theophylline can be increased when combined with Corticotropin. |
Teriflunomide | Teriflunomide The serum concentration of Theophylline can be decreased when it is combined with Teriflunomide. |
Cabozantinib (thyroid cancer) | Cabozantinib (thyroid cancer) The metabolism of Theophylline can be decreased when combined with Cabozantinib. |
Alogliptin | Alogliptin The metabolism of Alogliptin can be decreased when combined with Theophylline. |
Ponatinib | Ponatinib The metabolism of Theophylline can be decreased when combined with Ponatinib. |
Pomalidomide | Pomalidomide The metabolism of Pomalidomide can be decreased when combined with Theophylline. |
Ado-trastuzumab Emtansine Injection | Ado-trastuzumab Emtansine Injection The metabolism of Theophylline can be decreased when combined with Trastuzumab emtansine. |
Apixaban | Apixaban The metabolism of Apixaban can be decreased when combined with Theophylline. |
Dabrafenib | Dabrafenib The metabolism of Theophylline can be increased when combined with Dabrafenib. |
Ospemifene | Ospemifene The metabolism of Theophylline can be decreased when combined with Ospemifene. |
Trametinib | Trametinib The metabolism of Theophylline can be increased when combined with Trametinib. |
Levomilnacipran | Levomilnacipran The metabolism of Levomilnacipran can be decreased when combined with Theophylline. |
Vortioxetine | Vortioxetine The metabolism of Vortioxetine can be decreased when combined with Theophylline. |
Perampanel | Perampanel The metabolism of Theophylline can be increased when combined with Perampanel. |
Ibrutinib | Ibrutinib The metabolism of Ibrutinib can be decreased when combined with Theophylline. |
Lomitapide | Lomitapide The metabolism of Lomitapide can be decreased when combined with Theophylline. |
Ketorolac Injection | Ketorolac Injection The metabolism of Ketorolac can be decreased when combined with Theophylline. |
Simeprevir | Simeprevir The metabolism of Theophylline can be decreased when combined with Simeprevir. |
Dapagliflozin | Dapagliflozin The metabolism of Theophylline can be decreased when combined with Dapagliflozin. |
Apremilast | Apremilast The metabolism of Theophylline can be increased when combined with Apremilast. |
Ceritinib | Ceritinib The metabolism of Theophylline can be decreased when combined with Ceritinib. |
Siltuximab Injection | Siltuximab Injection The metabolism of Theophylline can be increased when combined with Siltuximab. |
Eslicarbazepine | Eslicarbazepine The metabolism of Theophylline can be increased when combined with Eslicarbazepine. |
Belinostat Injection | Belinostat Injection The metabolism of Theophylline can be increased when combined with Belinostat. |
Idelalisib | Idelalisib The metabolism of Theophylline can be decreased when combined with Idelalisib. |
Testosterone Injection | Testosterone Injection The metabolism of Theophylline can be increased when combined with Testosterone. |
Oritavancin Injection | Oritavancin Injection The metabolism of Theophylline can be increased when combined with Oritavancin. |
Vorapaxar | Vorapaxar The metabolism of Theophylline can be decreased when combined with Vorapaxar. |
Hydrocodone | Hydrocodone The metabolism of Theophylline can be decreased when combined with Hydrocodone. |
Suvorexant | Suvorexant The metabolism of Theophylline can be decreased when combined with Suvorexant. |
Peginterferon Beta-1a Injection | Peginterferon Beta-1a Injection The metabolism of Theophylline can be decreased when combined with Peginterferon beta-1a. |
Olaparib | Olaparib The metabolism of Theophylline can be decreased when combined with Olaparib. |
Methamphetamine | Methamphetamine The metabolism of Theophylline can be decreased when combined with Metamfetamine. |
Tasimelteon | Tasimelteon The metabolism of Theophylline can be decreased when combined with Tasimelteon. |
Riociguat | Riociguat Theophylline may increase the hypotensive activities of Riociguat. |
Lanreotide Injection | Lanreotide Injection The metabolism of Theophylline can be decreased when combined with Lanreotide. |
Pirfenidone | Pirfenidone The metabolism of Pirfenidone can be decreased when combined with Theophylline. |
Nintedanib | Nintedanib The metabolism of Theophylline can be decreased when combined with Nintedanib. |
Secukinumab Injection | Secukinumab Injection The metabolism of Theophylline can be increased when combined with Secukinumab. |
Risperidone Injection | Risperidone Injection The metabolism of Risperidone can be decreased when combined with Theophylline. |
Palbociclib | Palbociclib The metabolism of Theophylline can be decreased when combined with Palbociclib. |
Insulin Human Inhalation | Insulin Human Inhalation The metabolism of Theophylline can be increased when combined with Insulin human. |
Lenvatinib | Lenvatinib The metabolism of Theophylline can be increased when combined with Lenvatinib. |
Naloxegol | Naloxegol The metabolism of Theophylline can be decreased when combined with Naloxegol. |
Panobinostat | Panobinostat The metabolism of Theophylline can be decreased when combined with Panobinostat. |
Haloperidol Injection | Haloperidol Injection The serum concentration of Theophylline can be increased when it is combined with Haloperidol. |
Isavuconazonium Injection | Isavuconazonium Injection The metabolism of Theophylline can be increased when combined with Isavuconazonium. |
Rolapitant | Rolapitant The metabolism of Theophylline can be decreased when combined with Rolapitant. |
Prednisolone | Prednisolone The metabolism of Theophylline can be increased when combined with Prednisolone. |
Brexpiprazole | Brexpiprazole The metabolism of Brexpiprazole can be decreased when combined with Theophylline. |
Ziprasidone Injection | Ziprasidone Injection The metabolism of Theophylline can be decreased when combined with Ziprasidone. |
Cariprazine | Cariprazine The metabolism of Cariprazine can be decreased when combined with Theophylline. |
Insulin Degludec (rDNA Origin) Injection | Insulin Degludec (rDNA Origin) Injection The metabolism of Theophylline can be increased when combined with Insulin degludec. |
Cobimetinib | Cobimetinib The metabolism of Theophylline can be decreased when combined with Cobimetinib. |
Trabectedin Injection | Trabectedin Injection The metabolism of Trabectedin can be decreased when combined with Theophylline. |
Osimertinib | Osimertinib The serum concentration of Theophylline can be decreased when it is combined with Osimertinib. |
Rifapentine | Rifapentine The metabolism of Theophylline can be increased when combined with Rifapentine. |
Lesinurad | Lesinurad The metabolism of Theophylline can be increased when combined with Lesinurad. |
Amphotericin B Liposomal Injection | Amphotericin B Liposomal Injection The metabolism of Theophylline can be decreased when combined with Amphotericin B. |
Dexamethasone Injection | Dexamethasone Injection The metabolism of Theophylline can be increased when combined with Dexamethasone. |
Brivaracetam Injection | Brivaracetam Injection Brivaracetam may increase the excretion rate of Theophylline which could result in a lower serum level and potentially a reduction in efficacy. |
Venetoclax | Venetoclax The metabolism of Theophylline can be decreased when combined with Venetoclax. |
Cobicistat | Cobicistat The metabolism of Theophylline can be decreased when combined with Cobicistat. |
Midodrine | Midodrine The risk or severity of adverse effects can be increased when Midodrine is combined with Theophylline. |
Selexipag | Selexipag The metabolism of Selexipag can be decreased when combined with Theophylline. |
Obeticholic Acid | Obeticholic Acid The risk or severity of adverse effects can be increased when Obeticholic acid is combined with Theophylline. |
Diphenhydramine Injection | Diphenhydramine Injection The metabolism of Theophylline can be decreased when combined with Diphenhydramine. |
Rucaparib | Rucaparib The metabolism of Theophylline can be decreased when combined with Rucaparib. |
Ribociclib | Ribociclib The metabolism of Theophylline can be decreased when combined with Ribociclib. |
Brigatinib | Brigatinib The metabolism of Theophylline can be increased when combined with Brigatinib. |
Doxepin (Insomnia) | Doxepin (Insomnia) The metabolism of Theophylline can be decreased when combined with Doxepin. |
Deutetrabenazine | Deutetrabenazine The metabolism of Deutetrabenazine can be decreased when combined with Theophylline. |
Valbenazine | Valbenazine The metabolism of Valbenazine can be decreased when combined with Theophylline. |
Deflazacort | Deflazacort The metabolism of Theophylline can be increased when combined with Deflazacort. |
Safinamide | Safinamide The metabolism of Theophylline can be decreased when combined with Safinamide. |
Sarilumab Injection | Sarilumab Injection The metabolism of Theophylline can be increased when combined with Sarilumab. |
Midostaurin | Midostaurin The metabolism of Theophylline can be increased when combined with Midostaurin. |
Enasidenib | Enasidenib The metabolism of Theophylline can be increased when combined with Enasidenib. |
Aprepitant/Fosaprepitant Injection | Aprepitant/Fosaprepitant Injection The metabolism of Theophylline can be increased when combined with Fosaprepitant. |
Delafloxacin | Delafloxacin The metabolism of Theophylline can be decreased when combined with Delafloxacin. |
Acalabrutinib | Acalabrutinib The metabolism of Theophylline can be decreased when combined with Acalabrutinib. |
Letermovir | Letermovir The metabolism of Theophylline can be decreased when combined with Letermovir. |
Tetrabenazine | Tetrabenazine The metabolism of Theophylline can be decreased when combined with Tetrabenazine. |
Buprenorphine Injection | Buprenorphine Injection The metabolism of Theophylline can be decreased when combined with Buprenorphine. |
Apalutamide | Apalutamide The metabolism of Theophylline can be increased when combined with Apalutamide. |
Fostamatinib | Fostamatinib The metabolism of Theophylline can be decreased when combined with Fostamatinib. |
Avatrombopag | Avatrombopag The metabolism of Theophylline can be increased when combined with Avatrombopag. |
Lofexidine | Lofexidine The metabolism of Theophylline can be decreased when combined with Lofexidine. |
Eliglustat | Eliglustat The metabolism of Theophylline can be decreased when combined with Eliglustat. |
Encorafenib | Encorafenib The metabolism of Encorafenib can be decreased when combined with Theophylline. |
Binimetinib | Binimetinib The metabolism of Binimetinib can be decreased when combined with Theophylline. |
Ivosidenib | Ivosidenib The metabolism of Theophylline can be increased when combined with Ivosidenib. |
Elagolix | Elagolix The metabolism of Theophylline can be decreased when combined with Elagolix. |
Tafenoquine | Tafenoquine The metabolism of Theophylline can be decreased when combined with Tafenoquine. |
Cannabidiol | Cannabidiol The metabolism of Theophylline can be decreased when combined with Cannabidiol. |
Dacomitinib | Dacomitinib The metabolism of Theophylline can be decreased when combined with Dacomitinib. |
Duvelisib | Duvelisib The metabolism of Theophylline can be decreased when combined with Duvelisib. |
Stiripentol | Stiripentol The metabolism of Theophylline can be decreased when combined with Stiripentol. |
Gilteritinib | Gilteritinib The metabolism of Theophylline can be decreased when combined with Gilteritinib. |
Glasdegib | Glasdegib The metabolism of Glasdegib can be decreased when combined with Theophylline. |
Lorlatinib | Lorlatinib The metabolism of Lorlatinib can be decreased when combined with Theophylline. |
Paclitaxel (with albumin) Injection | Paclitaxel (with albumin) Injection The metabolism of Theophylline can be increased when combined with Paclitaxel. |
Rifamycin | Rifamycin The metabolism of Theophylline can be increased when combined with Rifamycin. |
Prucalopride | Prucalopride The metabolism of Theophylline can be decreased when combined with Prucalopride. |
Emapalumab-lzsg Injection | Emapalumab-lzsg Injection The metabolism of Theophylline can be increased when combined with Emapalumab. |
Siponimod | Siponimod The metabolism of Siponimod can be decreased when combined with Theophylline. |
Acyclovir Ophthalmic | Acyclovir Ophthalmic The metabolism of Acyclovir can be decreased when combined with Theophylline. |
Alpelisib | Alpelisib The metabolism of Theophylline can be increased when combined with Alpelisib. |
Brexanolone Injection | Brexanolone Injection Brexanolone may increase the excretion rate of Theophylline which could result in a lower serum level and potentially a reduction in efficacy. |
Triclabendazole | Triclabendazole The metabolism of Theophylline can be decreased when combined with Triclabendazole. |
Istradefylline | Istradefylline The metabolism of Istradefylline can be decreased when combined with Theophylline. |
Pitolisant | Pitolisant The serum concentration of Theophylline can be decreased when it is combined with Pitolisant. |
Fedratinib | Fedratinib The metabolism of Theophylline can be decreased when combined with Fedratinib. |
Lefamulin | Lefamulin The serum concentration of Theophylline can be increased when it is combined with Lefamulin. |
Phenytoin Injection | Phenytoin Injection The serum concentration of Theophylline can be decreased when it is combined with Phenytoin. |
Fosphenytoin Injection | Fosphenytoin Injection The serum concentration of Theophylline can be decreased when it is combined with Fosphenytoin. |
Voxelotor | Voxelotor The serum concentration of Theophylline can be increased when it is combined with Voxelotor. |
Tazemetostat | Tazemetostat The metabolism of Theophylline can be decreased when combined with Tazemetostat. |
Cenobamate | Cenobamate The serum concentration of Theophylline can be decreased when it is combined with Cenobamate. |
Ozanimod | Ozanimod The metabolism of Ozanimod can be decreased when combined with Theophylline. |
Selumetinib | Selumetinib The metabolism of Selumetinib can be decreased when combined with Theophylline. |
Tucatinib | Tucatinib The metabolism of Tucatinib can be decreased when combined with Theophylline. |
Selpercatinib | Selpercatinib The serum concentration of Theophylline can be increased when it is combined with Selpercatinib. |
Capmatinib | Capmatinib The serum concentration of Theophylline can be increased when it is combined with Capmatinib. |
Fenfluramine | Fenfluramine The metabolism of Theophylline can be decreased when combined with Fenfluramine. |
Octreotide | Octreotide The serum concentration of Theophylline can be increased when it is combined with Octreotide. |
Pralsetinib | Pralsetinib The metabolism of Theophylline can be increased when combined with Pralsetinib. |
Opicapone | Opicapone The metabolism of Theophylline can be decreased when combined with Opicapone. |
Satralizumab-mwge Injection | Satralizumab-mwge Injection The serum concentration of Theophylline can be decreased when it is combined with Satralizumab. |
Progestin-Only (drospirenone) Oral Contraceptives | Progestin-Only (drospirenone) Oral Contraceptives Drospirenone may decrease the excretion rate of Theophylline which could result in a higher serum level. |
Viloxazine | Viloxazine The metabolism of Theophylline can be decreased when combined with Viloxazine. |
Vitamin E (Alpha-Tocopherol) | Vitamin E (Alpha-Tocopherol) The metabolism of Theophylline can be increased when combined with Vitamin E. |
Mefenamic Acid | Mefenamic Acid The metabolism of Theophylline can be decreased when combined with Mefenamic acid. |
Naproxen | Naproxen The metabolism of Naproxen can be decreased when combined with Theophylline. |
Trazodone | Trazodone The metabolism of Theophylline can be decreased when combined with Trazodone. |
Sucralfate | Sucralfate Sucralfate can cause a decrease in the absorption of Theophylline resulting in a reduced serum concentration and potentially a decrease in efficacy. |
Hydroxyurea | Hydroxyurea The metabolism of Theophylline can be decreased when combined with Hydroxyurea. |
Methotrexate Injection | Methotrexate Injection The serum concentration of Theophylline can be increased when it is combined with Methotrexate. |
Primidone | Primidone The metabolism of Theophylline can be increased when combined with Primidone. |
Methsuximide | Methsuximide Methsuximide may increase the excretion rate of Theophylline which could result in a lower serum level and potentially a reduction in efficacy. |
Diethylpropion | Diethylpropion The risk or severity of adverse effects can be increased when Diethylpropion is combined with Theophylline. |
Chlorpromazine | Chlorpromazine The metabolism of Theophylline can be decreased when combined with Chlorpromazine. |
Diazepam | Diazepam The metabolism of Theophylline can be decreased when combined with Diazepam. |
Oxazepam | Oxazepam The therapeutic efficacy of Oxazepam can be decreased when used in combination with Theophylline. |
Flurazepam | Flurazepam The metabolism of Flurazepam can be decreased when combined with Theophylline. |
Clorazepate | Clorazepate The therapeutic efficacy of Clorazepic acid can be decreased when used in combination with Theophylline. |
Lorazepam | Lorazepam The metabolism of Theophylline can be decreased when combined with Lorazepam. |
Carmustine | Carmustine The metabolism of Theophylline can be decreased when combined with Carmustine. |
Codeine | Codeine The metabolism of Codeine can be decreased when combined with Theophylline. |
Chlordiazepoxide | Chlordiazepoxide The therapeutic efficacy of Chlordiazepoxide can be decreased when used in combination with Theophylline. |
Bromocriptine | Bromocriptine The metabolism of Bromocriptine can be decreased when combined with Theophylline. |
Metaproterenol | Metaproterenol The risk or severity of adverse effects can be increased when Orciprenaline is combined with Theophylline. |
Tranylcypromine | Tranylcypromine The metabolism of Theophylline can be decreased when combined with Tranylcypromine. |
Phenelzine | Phenelzine The metabolism of Theophylline can be decreased when combined with Phenelzine. |
Tetracycline | Tetracycline The metabolism of Theophylline can be decreased when combined with Tetracycline. |
Prochlorperazine | Prochlorperazine The metabolism of Theophylline can be decreased when combined with Prochlorperazine. |
Thioridazine | Thioridazine The metabolism of Theophylline can be decreased when combined with Thioridazine. |
Trifluoperazine | Trifluoperazine The metabolism of Trifluoperazine can be decreased when combined with Theophylline. |
Dapsone | Dapsone The metabolism of Theophylline can be decreased when combined with Dapsone. |
Sulfadiazine | Sulfadiazine The metabolism of Sulfadiazine can be decreased when combined with Theophylline. |
Oxycodone | Oxycodone The metabolism of Oxycodone can be decreased when combined with Theophylline. |
Methadone | Methadone The metabolism of Theophylline can be decreased when combined with Methadone. |
Oxybutynin | Oxybutynin The metabolism of Theophylline can be decreased when combined with Oxybutynin. |
Benztropine | Benztropine The metabolism of Theophylline can be decreased when combined with Benzatropine. |
Maprotiline | Maprotiline The metabolism of Theophylline can be decreased when combined with Maprotiline. |
Ibuprofen | Ibuprofen The metabolism of Ibuprofen can be decreased when combined with Theophylline. |
Orphenadrine | Orphenadrine The metabolism of Theophylline can be decreased when combined with Orphenadrine. |
Perphenazine | Perphenazine The metabolism of Theophylline can be decreased when combined with Perphenazine. |
Azathioprine | Azathioprine The metabolism of Azathioprine can be decreased when combined with Theophylline. |
Fluphenazine | Fluphenazine The metabolism of Theophylline can be decreased when combined with Fluphenazine. |
Phentermine | Phentermine The metabolism of Theophylline can be decreased when combined with Phentermine. |
Amoxapine | Amoxapine The metabolism of Amoxapine can be decreased when combined with Theophylline. |
Hydrocortisone | Hydrocortisone The metabolism of Theophylline can be increased when combined with Hydrocortisone. |
Doxorubicin | Doxorubicin The metabolism of Theophylline can be decreased when combined with Doxorubicin. |
Carbamazepine | Carbamazepine The serum concentration of Theophylline can be decreased when it is combined with Carbamazepine. |
Clonidine | Clonidine The metabolism of Clonidine can be decreased when combined with Theophylline. |
Hydralazine | Hydralazine The metabolism of Theophylline can be decreased when combined with Hydralazine. |
Cimetidine | Cimetidine The metabolism of Theophylline can be decreased when combined with Cimetidine. |
Warfarin | Warfarin The metabolism of Theophylline can be increased when combined with Warfarin. |
Clonazepam | Clonazepam The metabolism of Clonazepam can be decreased when combined with Theophylline. |
Loperamide | Loperamide The metabolism of Theophylline can be decreased when combined with Loperamide. |
Promethazine | Promethazine The metabolism of Theophylline can be decreased when combined with Promethazine. |
Daunorubicin | Daunorubicin The metabolism of Theophylline can be decreased when combined with Daunorubicin. |
Griseofulvin | Griseofulvin The metabolism of Theophylline can be increased when combined with Griseofulvin. |
Chloroquine | Chloroquine The metabolism of Theophylline can be decreased when combined with Chloroquine. |
Quinine | Quinine The serum concentration of Theophylline can be increased when it is combined with Quinine. |
Ethosuximide | Ethosuximide The metabolism of Theophylline can be decreased when combined with Ethosuximide. |
Calcitriol | Calcitriol The metabolism of Theophylline can be increased when combined with Calcitriol. |
Triamterene | Triamterene The metabolism of Triamterene can be decreased when combined with Theophylline. |
Sulfinpyrazone | Sulfinpyrazone The metabolism of Theophylline can be increased when combined with Sulfinpyrazone. |
Clindamycin Injection | Clindamycin Injection The metabolism of Theophylline can be decreased when combined with Clindamycin. |
Secobarbital | Secobarbital The metabolism of Theophylline can be increased when combined with Secobarbital. |
Desipramine | Desipramine The metabolism of Theophylline can be decreased when combined with Desipramine. |
Amitriptyline | Amitriptyline The metabolism of Amitriptyline can be decreased when combined with Theophylline. |
Imipramine | Imipramine The metabolism of Imipramine can be decreased when combined with Theophylline. |
Probenecid | Probenecid The serum concentration of Theophylline can be increased when it is combined with Probenecid. |
Quinidine | Quinidine The serum concentration of Theophylline can be increased when it is combined with Quinidine. |
Procainamide | Procainamide The metabolism of Procainamide can be decreased when combined with Theophylline. |
Isoniazid | Isoniazid The serum concentration of Theophylline can be increased when it is combined with Isoniazid. |
Rifampin | Rifampin The metabolism of Theophylline can be increased when combined with Rifampicin. |
Disopyramide | Disopyramide The metabolism of Disopyramide can be decreased when combined with Theophylline. |
Valproic Acid | Valproic Acid The metabolism of Theophylline can be decreased when combined with Valproic acid. |
Tamoxifen | Tamoxifen The metabolism of Theophylline can be increased when combined with Tamoxifen. |
Butabarbital | Butabarbital The serum concentration of Theophylline can be decreased when it is combined with Butabarbital. |
Levothyroxine | Levothyroxine Levothyroxine may increase the excretion rate of Theophylline which could result in a lower serum level and potentially a reduction in efficacy. |
Liothyronine | Liothyronine Liothyronine may increase the excretion rate of Theophylline which could result in a lower serum level and potentially a reduction in efficacy. |
Methimazole | Methimazole The excretion of Theophylline can be decreased when combined with Methimazole. |
Propylthiouracil | Propylthiouracil Propylthiouracil may decrease the excretion rate of Theophylline which could result in a higher serum level. |
Tolbutamide | Tolbutamide The metabolism of Tolbutamide can be decreased when combined with Theophylline. |
Dextromethorphan | Dextromethorphan The metabolism of Dextromethorphan can be decreased when combined with Theophylline. |
Cyclobenzaprine | Cyclobenzaprine The metabolism of Cyclobenzaprine can be decreased when combined with Theophylline. |
Niacin | Niacin The metabolism of Theophylline can be decreased when combined with Niacin. |
Clemastine | Clemastine The metabolism of Theophylline can be decreased when combined with Clemastine. |
Chlorpheniramine | Chlorpheniramine The metabolism of Theophylline can be decreased when combined with Chlorpheniramine. |
Meclizine | Meclizine The metabolism of Theophylline can be decreased when combined with Meclizine. |
Chlorzoxazone | Chlorzoxazone The metabolism of Chlorzoxazone can be decreased when combined with Theophylline. |
Danazol | Danazol The metabolism of Theophylline can be decreased when combined with Danazol. |
Disulfiram | Disulfiram The serum concentration of Theophylline can be increased when it is combined with Disulfiram. |
Propranolol (Cardiovascular) | Propranolol (Cardiovascular) The metabolism of Propranolol can be decreased when combined with Theophylline. |
Pseudoephedrine | Pseudoephedrine The risk or severity of adverse effects can be increased when Pseudoephedrine is combined with Theophylline. |
Nortriptyline | Nortriptyline The metabolism of Nortriptyline can be decreased when combined with Theophylline. |
Spironolactone | Spironolactone The metabolism of Theophylline can be decreased when combined with Spironolactone. |
Amphotericin B Injection | Amphotericin B Injection The metabolism of Theophylline can be decreased when combined with Amphotericin B. |
Nadolol | Nadolol The metabolism of Theophylline can be decreased when combined with Nadolol. |
Allopurinol | Allopurinol The serum concentration of Theophylline can be increased when it is combined with Allopurinol. |
Fluorouracil Injection | Fluorouracil Injection The metabolism of Fluorouracil can be decreased when combined with Theophylline. |
Colchicine | Colchicine The metabolism of Theophylline can be increased when combined with Colchicine. |
Cephalexin | Cephalexin The metabolism of Theophylline can be decreased when combined with Cephalexin. |
Dacarbazine | Dacarbazine The metabolism of Dacarbazine can be decreased when combined with Theophylline. |
Acetazolamide | Acetazolamide The metabolism of Theophylline can be decreased when combined with Acetazolamide. |
Bacillus Calmette-Guerin (BCG) Vaccine | Bacillus Calmette-Guerin (BCG) Vaccine The serum concentration of Theophylline can be increased when it is combined with Bacillus calmette-guerin substrain tice live antigen. |
Ketoconazole | Ketoconazole The metabolism of Theophylline can be decreased when combined with Ketoconazole. |
Isoxsuprine | Isoxsuprine The risk or severity of adverse effects can be increased when Isoxsuprine is combined with Theophylline. |
Vinblastine | Vinblastine The metabolism of Theophylline can be increased when combined with Vinblastine. |
Metoprolol | Metoprolol The metabolism of Theophylline can be decreased when combined with Metoprolol. |
Hydroxyzine | Hydroxyzine The metabolism of Theophylline can be decreased when combined with Hydroxyzine. |
Thiothixene | Thiothixene The metabolism of Thiothixene can be decreased when combined with Theophylline. |
Alprazolam | Alprazolam The therapeutic efficacy of Alprazolam can be decreased when used in combination with Theophylline. |
Temazepam | Temazepam The therapeutic efficacy of Temazepam can be decreased when used in combination with Theophylline. |
Triazolam | Triazolam The therapeutic efficacy of Triazolam can be decreased when used in combination with Theophylline. |
Trimethoprim | Trimethoprim The metabolism of Theophylline can be decreased when combined with Trimethoprim. |
Diltiazem | Diltiazem The metabolism of Diltiazem can be decreased when combined with Theophylline. |
Nifedipine | Nifedipine The metabolism of Theophylline can be increased when combined with Nifedipine. |
Timolol | Timolol The metabolism of Theophylline can be decreased when combined with Timolol. |
Verapamil | Verapamil The serum concentration of Theophylline can be increased when it is combined with Verapamil. |
Atenolol | Atenolol The metabolism of Theophylline can be decreased when combined with Atenolol. |
Pindolol | Pindolol The metabolism of Theophylline can be decreased when combined with Pindolol. |
Piroxicam | Piroxicam The metabolism of Theophylline can be decreased when combined with Piroxicam. |
Streptozocin | Streptozocin The metabolism of Theophylline can be increased when combined with Streptozocin. |
Etoposide | Etoposide The metabolism of Theophylline can be increased when combined with Etoposide. |
Glyburide | Glyburide The metabolism of Theophylline can be decreased when combined with Glyburide. |
Dicloxacillin | Dicloxacillin The metabolism of Theophylline can be increased when combined with Dicloxacillin. |
Nafcillin Injection | Nafcillin Injection The metabolism of Theophylline can be increased when combined with Nafcillin. |
Pentoxifylline | Pentoxifylline The serum concentration of Theophylline can be increased when it is combined with Pentoxifylline. |
Pentamidine Injection | Pentamidine Injection The metabolism of Theophylline can be decreased when combined with Pentamidine. |
Labetalol | Labetalol The metabolism of Theophylline can be decreased when combined with Labetalol. |
Gemfibrozil | Gemfibrozil The metabolism of Theophylline can be decreased when combined with Gemfibrozil. |
Guanabenz | Guanabenz The metabolism of Guanabenz can be decreased when combined with Theophylline. |
Ketoprofen | Ketoprofen The metabolism of Theophylline can be decreased when combined with Ketoprofen. |
Pimozide | Pimozide The metabolism of Pimozide can be decreased when combined with Theophylline. |
Amiodarone | Amiodarone The metabolism of Amiodarone can be decreased when combined with Theophylline. |
Buspirone | Buspirone The metabolism of Buspirone can be decreased when combined with Theophylline. |
Lovastatin | Lovastatin The metabolism of Theophylline can be decreased when combined with Lovastatin. |
Ciprofloxacin | Ciprofloxacin The serum concentration of Theophylline can be increased when it is combined with Ciprofloxacin. |
Diclofenac | Diclofenac The metabolism of Diclofenac can be decreased when combined with Theophylline. |
Fluoxetine | Fluoxetine The serum concentration of Theophylline can be increased when it is combined with Fluoxetine. |
Interferon Alfa-2b Injection | Interferon Alfa-2b Injection The metabolism of Theophylline can be decreased when combined with Interferon alfa-2b. |
Clozapine | Clozapine The metabolism of Theophylline can be decreased when combined with Clozapine. |
Estazolam | Estazolam The therapeutic efficacy of Estazolam can be decreased when used in combination with Theophylline. |
Idarubicin | Idarubicin The metabolism of Theophylline can be decreased when combined with Idarubicin. |
Ofloxacin | Ofloxacin The metabolism of Theophylline can be decreased when combined with Ofloxacin. |
Clarithromycin | Clarithromycin The therapeutic efficacy of Clarithromycin can be decreased when used in combination with Theophylline. |
Felodipine | Felodipine The metabolism of Felodipine can be decreased when combined with Theophylline. |
Nabumetone | Nabumetone The metabolism of Nabumetone can be decreased when combined with Theophylline. |
Simvastatin | Simvastatin The metabolism of Theophylline can be decreased when combined with Simvastatin. |
Teniposide Injection | Teniposide Injection The metabolism of Theophylline can be decreased when combined with Teniposide. |
Itraconazole | Itraconazole The metabolism of Theophylline can be decreased when combined with Itraconazole. |
Rifabutin | Rifabutin The metabolism of Theophylline can be increased when combined with Rifabutin. |
Sotalol | Sotalol The metabolism of Sotalol can be decreased when combined with Theophylline. |
Bisoprolol | Bisoprolol The risk or severity of adverse effects can be increased when Bisoprolol is combined with Theophylline. |
Zolpidem | Zolpidem The metabolism of Zolpidem can be decreased when combined with Theophylline. |
Doxazosin | Doxazosin The metabolism of Theophylline can be decreased when combined with Doxazosin. |
Isradipine | Isradipine The metabolism of Isradipine can be decreased when combined with Theophylline. |
Omeprazole | Omeprazole The metabolism of Theophylline can be increased when combined with Omeprazole. |
Cisapride | Cisapride The metabolism of Cisapride can be decreased when combined with Theophylline. |
Gabapentin | Gabapentin The therapeutic efficacy of Gabapentin can be decreased when used in combination with Theophylline. |
Fluvastatin | Fluvastatin The metabolism of Theophylline can be decreased when combined with Fluvastatin. |
Venlafaxine | Venlafaxine The metabolism of Theophylline can be decreased when combined with Venlafaxine. |
Famciclovir | Famciclovir The metabolism of Theophylline can be decreased when combined with Famciclovir. |
Fluvoxamine | Fluvoxamine The metabolism of Theophylline can be decreased when combined with Fluvoxamine. |
Nefazodone | Nefazodone The metabolism of Theophylline can be decreased when combined with Nefazodone. |
Lamotrigine | Lamotrigine Lamotrigine may increase the excretion rate of Theophylline which could result in a lower serum level and potentially a reduction in efficacy. |
Losartan | Losartan The metabolism of Theophylline can be decreased when combined with Losartan. |
Tramadol | Tramadol The metabolism of Theophylline can be decreased when combined with Tramadol. |
Vinorelbine Injection | Vinorelbine Injection The metabolism of Theophylline can be decreased when combined with Vinorelbine. |
Lansoprazole | Lansoprazole Lansoprazole may increase the excretion rate of Theophylline which could result in a lower serum level and potentially a reduction in efficacy. |
Ifosfamide Injection | Ifosfamide Injection The metabolism of Theophylline can be increased when combined with Ifosfamide. |
Nicardipine | Nicardipine The metabolism of Theophylline can be decreased when combined with Nicardipine. |
Bupropion | Bupropion The risk or severity of seizure can be increased when Bupropion is combined with Theophylline. |
Ticlopidine | Ticlopidine The metabolism of Theophylline can be decreased when combined with Ticlopidine. |
Saquinavir | Saquinavir The metabolism of Theophylline can be decreased when combined with Saquinavir. |
Riluzole | Riluzole Riluzole may increase the excretion rate of Theophylline which could result in a lower serum level and potentially a reduction in efficacy. |
Anastrozole | Anastrozole The metabolism of Anastrozole can be decreased when combined with Theophylline. |
Ritonavir | Ritonavir The serum concentration of Theophylline can be decreased when it is combined with Ritonavir. |
Docetaxel Injection | Docetaxel Injection The metabolism of Theophylline can be decreased when combined with Docetaxel. |
Clomipramine | Clomipramine The metabolism of Theophylline can be decreased when combined with Clomipramine. |
Zafirlukast | Zafirlukast The serum concentration of Zafirlukast can be decreased when it is combined with Theophylline. |
Mirtazapine | Mirtazapine The metabolism of Theophylline can be decreased when combined with Mirtazapine. |
Topiramate | Topiramate The metabolism of Theophylline can be increased when combined with Topiramate. |
Zileuton | Zileuton The serum concentration of Theophylline can be increased when it is combined with Zileuton. |
Insulin Lispro Injection | Insulin Lispro Injection The metabolism of Theophylline can be increased when combined with Insulin lispro. |
Donepezil | Donepezil The metabolism of Donepezil can be decreased when combined with Theophylline. |
Nelfinavir | Nelfinavir The metabolism of Theophylline can be decreased when combined with Nelfinavir. |
Azithromycin | Azithromycin The metabolism of Theophylline can be decreased when combined with Azithromycin. |
Loratadine | Loratadine The metabolism of Theophylline can be decreased when combined with Loratadine. |
Carvedilol | Carvedilol The metabolism of Carvedilol can be decreased when combined with Theophylline. |
Nilutamide | Nilutamide The metabolism of Theophylline can be decreased when combined with Nilutamide. |
Flutamide | Flutamide The metabolism of Flutamide can be decreased when combined with Theophylline. |
Selegiline | Selegiline The metabolism of Theophylline can be decreased when combined with Selegiline. |
Bicalutamide | Bicalutamide The metabolism of Theophylline can be decreased when combined with Bicalutamide. |
Sertraline | Sertraline The metabolism of Theophylline can be decreased when combined with Sertraline. |
Propafenone | Propafenone The serum concentration of Theophylline can be increased when it is combined with Propafenone. |
Raloxifene | Raloxifene The metabolism of Theophylline can be decreased when combined with Raloxifene. |
Irbesartan | Irbesartan The metabolism of Theophylline can be decreased when combined with Irbesartan. |
Tamsulosin | Tamsulosin The metabolism of Tamsulosin can be decreased when combined with Theophylline. |
Quetiapine | Quetiapine The metabolism of Quetiapine can be decreased when combined with Theophylline. |
Cetirizine | Cetirizine The serum concentration of Cetirizine can be increased when it is combined with Theophylline. |
Paroxetine | Paroxetine The serum concentration of Theophylline can be increased when it is combined with Paroxetine. |
Citalopram | Citalopram The metabolism of Theophylline can be decreased when combined with Citalopram. |
Efavirenz | Efavirenz The metabolism of Theophylline can be increased when combined with Efavirenz. |
Pioglitazone | Pioglitazone The metabolism of Theophylline can be decreased when combined with Pioglitazone. |
Celecoxib | Celecoxib The metabolism of Theophylline can be decreased when combined with Celecoxib. |
Rosiglitazone | Rosiglitazone The metabolism of Theophylline can be decreased when combined with Rosiglitazone. |
Tolterodine | Tolterodine The metabolism of Tolterodine can be decreased when combined with Theophylline. |
Nateglinide | Nateglinide The metabolism of Nateglinide can be decreased when combined with Theophylline. |
Galantamine | Galantamine The metabolism of Galantamine can be decreased when combined with Theophylline. |
Levetiracetam | Levetiracetam The therapeutic efficacy of Levetiracetam can be decreased when used in combination with Theophylline. |
Rabeprazole | Rabeprazole The metabolism of Theophylline can be decreased when combined with Rabeprazole. |
Terbinafine | Terbinafine The metabolism of Theophylline can be decreased when combined with Terbinafine. |
Content provided by: AHFS® Patient Medication Information™. © Copyright, 2021. The American Society of Health-System Pharmacists