Rifampin

Generic name: Pronounced as (rif' am pin)
Brand names
  • Rifadin®
  • Rimactane®
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Medical Content Reviewed By HelloPharmacist Staff

Last Revised - 04/15/2019

Rifampin is used with other medications to treat tuberculosis (TB; a serious infection that affects the lungs and sometimes other parts of the body). Rifampin is also used to treat some people who have Neisseria meningitidis (a type of bacteria that can cause a serious infection called meningitis) infections in their noses or throats. These people have not developed symptoms of the disease, and this treatment is used to prevent them from infecting other people. Rifampin should not be used to treat people who have developed symptoms of meningitis. Rifampin is in a class of medications called antimycobacterials. It works by killing the bacteria that cause infection.

Antibiotics such as rifampin will not work for colds, flu, or other viral infections. Using antibiotics when they are not needed increases your risk of getting an infection later that resists antibiotic treatment.

Rifampin comes as a capsule to take by mouth. It should be taken with a full glass of water on an empty stomach, 1 hour before or 2 hours after a meal. When rifampin is used to treat tuberculosis, it is taken once daily. When rifampin is used to prevent the spread of Neisseria meningitidis bacteria to other people, it is taken twice daily for 2 days or once daily for 4 days. Follow the directions on your prescription label carefully, and ask your doctor or pharmacist to explain any part you do not understand. Take rifampin exactly as directed. Do not take more or less of it or take it more often than prescribed by your doctor.

Tell your doctor or pharmacist if you cannot swallow the capsules. Your pharmacist can prepare a liquid for you to take instead.

If you are taking rifampin to treat tuberculosis, your doctor may tell you to take rifampin for several months or longer. Continue to take rifampin until you finish the prescription even if you feel better, and be careful not to miss doses. If you stop taking rifampin too soon, your infection may not be completely treated and the bacteria may become resistant to antibiotics. If you miss doses of rifampin, you may develop uncomfortable or serious symptoms when you begin to take the medication again.

Rifampin is also sometimes used to treat infections caused by other types of bacteria and to prevent infection in people who have been in close contact with a person who has certain serious bacterial infections. Talk to your doctor about the risks of using this medication for your condition.

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

Before taking rifampin,

  • tell your doctor and pharmacist if you are allergic to rifampin, rifabutin (Mycobutin), rifapentine (Priftin), any other medications, or any of the ingredients in rifampin capsules. Ask your doctor or pharmacist for a list of the ingredients.

  • tell your doctor if you are taking any of the following medications: atazanavir (Reyataz), darunavir (Prezista), fosamprenavir (Lexiva), praziquantel (Biltricide), saquinavir (Invirase), tipranavir (Aptivus), or ritonavir (Norvir) and saquinavir (Invirase) taken together. Your doctor will probably tell you not to take rifampin if you are taking any of these medications. If you are taking rifampin and need to take praziquantal (Biltricide), you should wait at least 4 weeks after you stop taking rifampin before you begin to take praziquantel.

  • tell your doctor and pharmacist what 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: anticoagulants ('blood thinners') such as warfarin (Coumadin, Jantoven); antifungals such as fluconazole (Diflucan), itraconazole (Onmel, Sporanox), and ketoconazole; atovaquone (Mepron, in Malarone); barbiturates such as phenobarbital; beta blockers such as atenolol (Tenormin), labetalol (Trandate), metoprolol (Lopressor, Toprol XL), nadolol (Corgard), and propranolol (Inderal, Innopran); calcium channel blockers such as diltiazem (Cardizem, Cartia, Tiazac), nifedipine (Adalat, Procardia), and verapamil (Calan, Verelan); chloramphenicol; clarithromycin (Biaxin); cyclosporine (Gengraf, Neoral, Sandimmune); daclatasvir (Daklinza); dapsone; diazepam (Valium); doxycycline (Monodox, Oracea, Vibramycin); efavirenz (Sustiva); enalapril (Vaseretic); fluoroquinolone antibiotics such as ciprofloxacin (Cipro) and moxifloxacin (Avelox); gemfibrozil (Lopid); haloperidol (Haldol); hormonal contraceptives (birth control pills, patches, rings, or injections); hormone replacement therapy (HRT); indinavir (Crixivan); irinotecan (Camptosar); isoniazid (in Rifater, Rifamate); levothyroxine (Levoxyl, Synthroid, Tirosint); losartan (Cozaar); medications for irregular heartbeat such as digoxin (Lanoxin), disopyramide (Norpace), mexiletine, propafenone (Rythmol), and quinidine (in Nuedexta); medications for seizures such as phenytoin (Dilantin, Phenytek); methadone (Dolophine, Methadose); narcotic medications for pain such as oxycodone (Oxaydo, Xtampza) and morphine (Kadian); ondansetron (Zofran, Zuplenz); oral medications for diabetes such as glipizide (Glucotrol), glyburide (Diabeta), and rosiglitazone (Avandia); probenecid (Probalan); quinine (Qualquin); simvastatin (Flolipid, Zocor), steroids such as dexamethasone (Decadron), methylprednisolone (Medrol), and prednisone; sofosbuvir (Sovaldi); tamoxifen (Soltamox); toremifene (Fareston); trimethoprim and sulfamethoxazole (Bactrim, Septra); tacrolimus(Prograf); theophylline (Elixophyllin, Theo-24); tricyclic antidepressants such as amitriptyline and nortriptyline (Pamelor); zidovudine (Retrovir, in Trizivir), and zolpidem (Ambien). Many other medications may interact with rifampin, 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.

  • if you are taking antacids, take rifampin at least 1 hour before you take the antacids.

  • tell your doctor if you are taking or using hormonal contraceptives (birth control pills, patches, rings, implants, and injections). Rifampin can decrease the effectiveness of hormonal contraceptives. You should use another method of birth control while taking this medication. Talk to your doctor about birth control while taking rifampin.

  • tell your doctor if you have or have ever had diabetes, porphyria (condition in which certain natural substances build up in the body and may cause stomach pain, changes in thinking and behavior, or other symptoms), any condition that affects your adrenal gland (small gland next to the kidney that produces important natural substances) or liver disease.

  • tell your doctor if you are pregnant, plan to become pregnant, or are breastfeeding. If you become pregnant while taking rifampin, call your doctor.

  • tell your doctor if you wear soft contact lenses. Rifampin may cause permanent red stains on your contact lenses if you wear them during your treatment with rifampin.

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

Do not miss doses of rifampin. Missing doses may increase the risk that you will experience serious side effects. If you do miss 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 call your doctor. Do not take a double dose to make up for a missed one.

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

    • temporary discoloration (yellow, reddish-orange, or brown color) of your skin, teeth, saliva, urine, stool, sweat, and tears)

    • itching

    • flushing

    • headache

    • drowsiness

    • dizziness

    • lack of coordination

    • difficulty concentrating

    • confusion

    • changes in behavior

    • muscle weakness

    • numbness

    • pain in the arms, hands, feet, or legs

    • heartburn

    • stomach cramps

    • loss of appetite

    • nausea

    • vomiting

    • diarrhea

    • gas

    • painful or irregular menstrual periods

    • vision changes

  • Some side effects can be serious. If you experience any of the following symptoms, call your doctor immediately:

    • watery or bloody stools, stomach cramps, or fever during treatment or for up to two or more months after stopping treatment

    • rash; hives; fever; chills; swelling of the eyes, face, lips, tongue, or throat; difficulty swallowing or breathing; shortness of breath; wheezing; swollen lymph nodes; sore throat; pink eye; flu- like symptoms; unusual bleeding or bruising; or joint swelling or pain

    • nausea, vomiting, loss of appetite, dark urine, or yellowing of the skin or eyes

  • 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).

  • Rifampin may cause other side effects. Call your doctor if you have any unusual problems while you are taking 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.

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.

Symptoms of overdose may include the following:

  • nausea

  • vomiting

  • stomach pain

  • itching

  • headache

  • loss of consciousness

  • yellowing of the skin or eyes

  • reddish brown discoloration of the skin, saliva, urine, feces, sweat, and tears

  • tenderness in the upper right part of the stomach

  • swelling of the eyes or face

  • fast or irregular heartbeat

  • seizures

Keep all appointments with your doctor and the laboratory. Your doctor will order certain lab tests to check your response to rifampin.

Before having any laboratory test, including drug screening tests, tell the laboratory personnel that you are taking rifampin. Rifampin may cause the results of certain drug screening tests to be positive even though you have not taken the drugs.

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.

  • Rifamate® (containing Isoniazid, Rifampin)
  • Rifater® (containing Isoniazid, Pyrazinamide, Rifampin)

Drug Interaction
Repaglinide Repaglinide The serum concentration of Repaglinide can be decreased when it is combined with Rifampicin.
Montelukast Montelukast The metabolism of Montelukast can be increased when combined with Rifampicin.
Leflunomide Leflunomide The serum concentration of teriflunomide (A77 1726), an active metabolite of Leflunomide, can be increased when used in combination with Rifampicin.
Nevirapine Nevirapine The metabolism of Nevirapine can be increased when combined with Rifampicin.
Atorvastatin Atorvastatin The metabolism of Atorvastatin can be increased when combined with Rifampicin.
Aminophylline Aminophylline The metabolism of Aminophylline can be increased when combined with Rifampicin.
Anagrelide Anagrelide The metabolism of Anagrelide can be increased when combined with Rifampicin.
Calcium Carbonate Calcium Carbonate Calcium carbonate can cause a decrease in the absorption of Rifampicin resulting in a reduced serum concentration and potentially a decrease in efficacy.
Cilostazol Cilostazol The metabolism of Cilostazol can be increased when combined with Rifampicin.
Clopidogrel Clopidogrel The therapeutic efficacy of Clopidogrel can be increased when used in combination with Rifampicin.
Erythromycin and Sulfisoxazole Erythromycin and Sulfisoxazole The metabolism of Erythromycin can be increased when combined with Rifampicin.
Estrogen and Progestin (Oral Contraceptives) Estrogen and Progestin (Oral Contraceptives) The metabolism of Conjugated estrogens can be increased when combined with Rifampicin.
Fenofibrate Fenofibrate The metabolism of Fenofibrate can be increased when combined with Rifampicin.
Guanfacine Guanfacine The metabolism of Guanfacine can be increased when combined with Rifampicin.
Magnesium Hydroxide Magnesium Hydroxide Magnesium hydroxide can cause a decrease in the absorption of Rifampicin resulting in a reduced serum concentration and potentially a decrease in efficacy.
Magnesium Oxide Magnesium Oxide Magnesium oxide can cause a decrease in the absorption of Rifampicin resulting in a reduced serum concentration and potentially a decrease in efficacy.
Mycophenolate Mycophenolate The metabolism of Mycophenolic acid can be increased when combined with Rifampicin.
Paregoric Paregoric The metabolism of Morphine can be increased when combined with Rifampicin.
Penbutolol Penbutolol The metabolism of Acebutolol can be increased when combined with Rifampicin.
Ranitidine Ranitidine Ranitidine can cause a decrease in the absorption of Rifampicin resulting in a reduced serum concentration and potentially a decrease in efficacy.
Reserpine Reserpine The risk or severity of liver damage can be increased when Reserpine is combined with Rifampicin.
Sumatriptan Sumatriptan The excretion of Sumatriptan can be decreased when combined with Rifampicin.
Tacrolimus Tacrolimus The metabolism of Tacrolimus can be increased when combined with Rifampicin.
Tizanidine Tizanidine The metabolism of Tizanidine can be increased when combined with Rifampicin.
Triamcinolone Triamcinolone The metabolism of Triamcinolone can be increased when combined with Rifampicin.
Zolmitriptan Zolmitriptan The metabolism of Zolmitriptan can be increased when combined with Rifampicin.
Famotidine Injection Famotidine Injection Famotidine can cause a decrease in the absorption of Rifampicin resulting in a reduced serum concentration and potentially a decrease in efficacy.
Fluconazole Injection Fluconazole Injection Rifampicin may increase the excretion rate of Fluconazole which could result in a lower serum level and potentially a reduction in efficacy.
Levofloxacin Injection Levofloxacin Injection The excretion of Levofloxacin can be decreased when combined with Rifampicin.
Meperidine Injection Meperidine Injection The metabolism of Meperidine can be increased when combined with Rifampicin.
Metoclopramide Injection Metoclopramide Injection The metabolism of Metoclopramide can be increased when combined with Rifampicin.
Metronidazole Injection Metronidazole Injection The metabolism of Metronidazole can be increased when combined with Rifampicin.
Morphine Injection Morphine Injection The metabolism of Morphine can be increased when combined with Rifampicin.
Zidovudine Injection Zidovudine Injection The metabolism of Zidovudine can be increased when combined with Rifampicin.
Cyclosporine Cyclosporine The metabolism of Cyclosporine can be increased when combined with Rifampicin.
Ondansetron Ondansetron The metabolism of Ondansetron can be increased when combined with Rifampicin.
Torsemide Torsemide The metabolism of Torasemide can be increased when combined with Rifampicin.
Olanzapine Olanzapine The metabolism of Olanzapine can be increased when combined with Rifampicin.
Alosetron Alosetron The metabolism of Alosetron can be increased when combined with Rifampicin.
Dofetilide Dofetilide The metabolism of Dofetilide can be increased when combined with Rifampicin.
Entacapone Entacapone The metabolism of Entacapone can be increased when combined with Rifampicin.
Hydroxychloroquine Hydroxychloroquine The metabolism of Hydroxychloroquine can be increased when combined with Rifampicin.
Pantoprazole Pantoprazole Pantoprazole can cause a decrease in the absorption of Rifampicin resulting in a reduced serum concentration and potentially a decrease in efficacy.
Telmisartan Telmisartan Rifampicin may decrease the excretion rate of Telmisartan which could result in a higher serum level.
Zaleplon Zaleplon The metabolism of Zaleplon can be increased when combined with Rifampicin.
Linezolid Linezolid The therapeutic efficacy of Linezolid can be decreased when used in combination with Rifampicin.
Trimipramine Trimipramine The serum concentration of Trimipramine can be decreased when it is combined with Rifampicin.
Tenofovir Tenofovir The metabolism of Rifampicin can be increased when combined with Tenofovir.
Sirolimus Sirolimus The metabolism of Sirolimus can be increased when combined with Rifampicin.
Dutasteride Dutasteride The metabolism of Dutasteride can be increased when combined with Rifampicin.
Eplerenone Eplerenone The metabolism of Eplerenone can be increased when combined with Rifampicin.
Escitalopram Escitalopram The metabolism of Escitalopram can be increased when combined with Rifampicin.
Olmesartan Olmesartan The risk or severity of liver damage can be increased when Olmesartan is combined with Rifampicin.
Zonisamide Zonisamide The metabolism of Zonisamide can be increased when combined with Rifampicin.
Aripiprazole Aripiprazole The metabolism of Aripiprazole can be increased when combined with Rifampicin.
Ezetimibe Ezetimibe The metabolism of Ezetimibe can be increased when combined with Rifampicin.
Atazanavir Atazanavir The metabolism of Rifampicin can be increased when combined with Atazanavir.
Almotriptan Almotriptan The metabolism of Almotriptan can be increased when combined with Rifampicin.
Rosuvastatin Rosuvastatin The metabolism of Rifampicin can be increased when combined with Rosuvastatin.
Vardenafil Vardenafil The metabolism of Vardenafil can be increased when combined with Rifampicin.
Aprepitant Aprepitant The metabolism of Aprepitant can be increased when combined with Rifampicin.
Tadalafil Tadalafil The metabolism of Tadalafil can be increased when combined with Rifampicin.
Frovatriptan Frovatriptan The metabolism of Frovatriptan can be increased when combined with Rifampicin.
Progesterone Progesterone The metabolism of Rifampicin can be increased when combined with Progesterone.
Apomorphine Injection Apomorphine Injection The metabolism of Apomorphine can be increased when combined with Rifampicin.
Duloxetine Duloxetine The metabolism of Duloxetine can be increased when combined with Rifampicin.
Norethindrone Norethindrone The metabolism of Rifampicin can be increased when combined with Norethisterone.
Tinidazole Tinidazole Rifampicin may decrease the excretion rate of Tinidazole which could result in a higher serum level.
Bosentan Bosentan The serum concentration of Bosentan can be decreased when it is combined with Rifampicin.
Cefditoren Cefditoren The excretion of Cefdinir can be decreased when combined with Rifampicin.
Cinacalcet Cinacalcet The metabolism of Cinacalcet can be increased when combined with Rifampicin.
Erlotinib Erlotinib The metabolism of Erlotinib can be increased when combined with Rifampicin.
Eszopiclone Eszopiclone The serum concentration of Eszopiclone can be decreased when it is combined with Rifampicin.
Voriconazole Voriconazole The metabolism of Voriconazole can be increased when combined with Rifampicin.
Entecavir Entecavir The metabolism of Entecavir can be increased when combined with Rifampicin.
Ramelteon Ramelteon The metabolism of Ramelteon can be increased when combined with Rifampicin.
Fentanyl Fentanyl The metabolism of Fentanyl can be increased when combined with Rifampicin.
Deferasirox Deferasirox The metabolism of Deferasirox can be increased when combined with Rifampicin.
Tipranavir Tipranavir Rifampicin may decrease the excretion rate of Tipranavir which could result in a higher serum level.
Felbamate Felbamate The metabolism of Felbamate can be increased when combined with Rifampicin.
Ranolazine Ranolazine The metabolism of Rifampicin can be increased when combined with Ranolazine.
Rasagiline Rasagiline The metabolism of Rasagiline can be increased when combined with Rifampicin.
Imatinib Imatinib The metabolism of Imatinib can be increased when combined with Rifampicin.
Sitagliptin Sitagliptin The metabolism of Sitagliptin can be increased when combined with Rifampicin.
Gefitinib Gefitinib The metabolism of Gefitinib can be increased when combined with Rifampicin.
Paliperidone Paliperidone The serum concentration of Paliperidone can be decreased when it is combined with Rifampicin.
Exemestane Exemestane The metabolism of Exemestane can be increased when combined with Rifampicin.
Bortezomib Bortezomib The metabolism of Bortezomib can be increased when combined with Rifampicin.
Clofarabine Injection Clofarabine Injection The excretion of Clofarabine can be decreased when combined with Rifampicin.
Fulvestrant Injection Fulvestrant Injection The metabolism of Fulvestrant can be increased when combined with Rifampicin.
Primaquine Primaquine The metabolism of Primaquine can be increased when combined with Rifampicin.
Pemetrexed Injection Pemetrexed Injection The metabolism of Pemetrexed can be increased when combined with Rifampicin.
Retapamulin Retapamulin The metabolism of Retapamulin can be increased when combined with Rifampicin.
Sorafenib Sorafenib The metabolism of Sorafenib can be increased when combined with Rifampicin.
Sunitinib Sunitinib The metabolism of Sunitinib can be increased when combined with Rifampicin.
Lapatinib Lapatinib The metabolism of Lapatinib can be increased when combined with Rifampicin.
Dasatinib Dasatinib The metabolism of Dasatinib can be increased when combined with Rifampicin.
Mexiletine Mexiletine The metabolism of Mexiletine can be increased when combined with Rifampicin.
Ivermectin Ivermectin The excretion of Rifampicin can be decreased when combined with Ivermectin.
Temsirolimus Temsirolimus The metabolism of Temsirolimus can be increased when combined with Rifampicin.
Maraviroc Maraviroc The metabolism of Maraviroc can be increased when combined with Rifampicin.
Nilotinib Nilotinib The metabolism of Nilotinib can be increased when combined with Rifampicin.
Raltegravir Raltegravir The serum concentration of Raltegravir can be decreased when it is combined with Rifampicin.
Budesonide Budesonide Rifampicin may decrease the excretion rate of Budesonide which could result in a higher serum level.
Chloramphenicol Injection Chloramphenicol Injection The metabolism of Chloramphenicol can be increased when combined with Rifampicin.
Doripenem Injection Doripenem Injection The excretion of Doripenem can be decreased when combined with Rifampicin.
Etravirine Etravirine The metabolism of Etravirine can be increased when combined with Rifampicin.
Nebivolol Nebivolol The metabolism of Nebivolol can be increased when combined with Rifampicin.
Tretinoin Tretinoin The metabolism of Tretinoin can be increased when combined with Rifampicin.
Bendamustine Injection Bendamustine Injection The serum concentration of Bendamustine can be increased when it is combined with Rifampicin.
Leucovorin Injection Leucovorin Injection The excretion of Leucovorin can be decreased when combined with Rifampicin.
Flecainide Flecainide The metabolism of Flecainide can be increased when combined with Rifampicin.
Ixabepilone Injection Ixabepilone Injection The metabolism of Ixabepilone can be increased when combined with Rifampicin.
Irinotecan Injection Irinotecan Injection The metabolism of Irinotecan can be increased when combined with Rifampicin.
Praziquantel Praziquantel The metabolism of Praziquantel can be increased when combined with Rifampicin.
Rufinamide Rufinamide The metabolism of Rifampicin can be increased when combined with Rufinamide.
Midazolam Midazolam The metabolism of Midazolam can be increased when combined with Rifampicin.
Naltrexone Injection Naltrexone Injection The metabolism of Naltrexone can be increased when combined with Rifampicin.
Eltrombopag Eltrombopag The metabolism of Eltrombopag can be increased when combined with Rifampicin.
Milnacipran Milnacipran The metabolism of Milnacipran can be increased when combined with Rifampicin.
Dexlansoprazole Dexlansoprazole Dexlansoprazole can cause a decrease in the absorption of Rifampicin resulting in a reduced serum concentration and potentially a decrease in efficacy.
Betaxolol Betaxolol The metabolism of Betaxolol can be increased when combined with Rifampicin.
Iloperidone Iloperidone The metabolism of Iloperidone can be increased when combined with Rifampicin.
Lacosamide Lacosamide The metabolism of Rifampicin can be increased when combined with Lacosamide.
Everolimus Everolimus The metabolism of Everolimus can be increased when combined with Rifampicin.
Tolvaptan (low blood sodium) Tolvaptan (low blood sodium) The serum concentration of Tolvaptan can be decreased when it is combined with Rifampicin.
Dronedarone Dronedarone The metabolism of Rifampicin can be increased when combined with Dronedarone.
Saxagliptin Saxagliptin The metabolism of Saxagliptin can be increased when combined with Rifampicin.
Romidepsin Injection Romidepsin Injection The serum concentration of Romidepsin can be increased when it is combined with Rifampicin.
Tapentadol Tapentadol The metabolism of Tapentadol can be increased when combined with Rifampicin.
Topotecan Topotecan The serum concentration of Topotecan can be decreased when it is combined with Rifampicin.
Pazopanib Pazopanib The metabolism of Pazopanib can be increased when combined with Rifampicin.
Asenapine Asenapine The metabolism of Asenapine can be increased when combined with Rifampicin.
Pitavastatin Pitavastatin The excretion of Pitavastatin can be decreased when combined with Rifampicin.
Albendazole Albendazole The metabolism of Albendazole can be increased when combined with Rifampicin.
Ulipristal Ulipristal The metabolism of Ulipristal can be increased when combined with Rifampicin.
Levonorgestrel Levonorgestrel The therapeutic efficacy of Levonorgestrel can be decreased when used in combination with Rifampicin.
Fingolimod Fingolimod The metabolism of Fingolimod can be increased when combined with Rifampicin.
Cabazitaxel Injection Cabazitaxel Injection The serum concentration of Rifampicin can be decreased when it is combined with Cabazitaxel.
Acetaminophen Injection Acetaminophen Injection Rifampicin may increase the hepatotoxic activities of Acetaminophen.
Vilazodone Vilazodone The metabolism of Vilazodone can be increased when combined with Rifampicin.
Busulfan Injection Busulfan Injection The metabolism of Busulfan can be increased when combined with Rifampicin.
Roflumilast Roflumilast The metabolism of Rifampicin can be increased when combined with Roflumilast.
Linagliptin Linagliptin The serum concentration of Linagliptin can be decreased when it is combined with Rifampicin.
Rilpivirine Rilpivirine The excretion of Rifampicin can be decreased when combined with Rilpivirine.
Telaprevir Telaprevir The excretion of Glecaprevir can be decreased when combined with Rifampicin.
Cyclophosphamide Injection Cyclophosphamide Injection The metabolism of Cyclophosphamide can be increased when combined with Rifampicin.
Abiraterone Abiraterone The metabolism of Abiraterone can be increased when combined with Rifampicin.
Rivaroxaban Rivaroxaban The metabolism of Rivaroxaban can be increased when combined with Rifampicin.
Brentuximab Vedotin Injection Brentuximab Vedotin Injection The serum concentration of Brentuximab vedotin can be decreased when it is combined with Rifampicin.
Ruxolitinib Ruxolitinib The metabolism of Ruxolitinib can be increased when combined with Rifampicin.
Vandetanib Vandetanib The metabolism of Vandetanib can be increased when combined with Rifampicin.
Clobazam Clobazam The metabolism of Clobazam can be increased when combined with Rifampicin.
Vemurafenib Vemurafenib The metabolism of Vemurafenib can be increased when combined with Rifampicin.
Ivacaftor Ivacaftor The serum concentration of Ivacaftor can be decreased when it is combined with Rifampicin.
Axitinib Axitinib The metabolism of Rifampicin can be increased when combined with Axitinib.
Crizotinib Crizotinib The metabolism of Crizotinib can be increased when combined with Rifampicin.
Cabergoline Cabergoline The metabolism of Cabergoline can be increased when combined with Rifampicin.
Naloxone Injection Naloxone Injection The metabolism of Naloxone can be increased when combined with Rifampicin.
Ambrisentan Ambrisentan The metabolism of Ambrisentan can be decreased when combined with Rifampicin.
Ezogabine Ezogabine The metabolism of Tiagabine can be increased when combined with Rifampicin.
Carfilzomib Injection Carfilzomib Injection The serum concentration of Carfilzomib can be decreased when it is combined with Rifampicin.
Enzalutamide Enzalutamide The metabolism of Enzalutamide can be increased when combined with Rifampicin.
Regorafenib Regorafenib The metabolism of Regorafenib can be decreased when combined with Rifampicin.
Bosutinib Bosutinib The metabolism of Bosutinib can be increased when combined with Rifampicin.
Cabozantinib (thyroid cancer) Cabozantinib (thyroid cancer) The metabolism of Cabozantinib can be increased when combined with Rifampicin.
Ponatinib Ponatinib The metabolism of Ponatinib can be increased when combined with Rifampicin.
Pomalidomide Pomalidomide The serum concentration of Pomalidomide can be decreased when it is combined with Rifampicin.
Ado-trastuzumab Emtansine Injection Ado-trastuzumab Emtansine Injection The serum concentration of Trastuzumab emtansine can be decreased when it is combined with Rifampicin.
Apixaban Apixaban The metabolism of Apixaban can be increased when combined with Rifampicin.
Canagliflozin Canagliflozin The serum concentration of Canagliflozin can be decreased when it is combined with Rifampicin.
Dabrafenib Dabrafenib The metabolism of Dabrafenib can be increased when combined with Rifampicin.
Dolutegravir Dolutegravir The serum concentration of Dolutegravir can be decreased when it is combined with Rifampicin.
Afatinib Afatinib The serum concentration of Afatinib can be decreased when it is combined with Rifampicin.
Levomilnacipran Levomilnacipran The metabolism of Levomilnacipran can be increased when combined with Rifampicin.
Vortioxetine Vortioxetine The metabolism of Vortioxetine can be increased when combined with Rifampicin.
Perampanel Perampanel The metabolism of Perampanel can be increased when combined with Rifampicin.
Ibrutinib Ibrutinib The metabolism of Ibrutinib can be increased when combined with Rifampicin.
Lomitapide Lomitapide The metabolism of Lomitapide can be increased when combined with Rifampicin.
Ketorolac Injection Ketorolac Injection The metabolism of Ketorolac can be increased when combined with Rifampicin.
Simeprevir Simeprevir The risk or severity of liver damage can be increased when Rifampicin is combined with Simeprevir.
Sofosbuvir Sofosbuvir The serum concentration of Sofosbuvir can be decreased when it is combined with Rifampicin.
Dapagliflozin Dapagliflozin The metabolism of Dapagliflozin can be increased when combined with Rifampicin.
Apremilast Apremilast The metabolism of Apremilast can be increased when combined with Rifampicin.
Ceritinib Ceritinib The metabolism of Rifampicin can be increased when combined with Ceritinib.
Eslicarbazepine Eslicarbazepine The metabolism of Rifampicin can be increased when combined with Eslicarbazepine.
Belinostat Injection Belinostat Injection The metabolism of Belinostat can be increased when combined with Rifampicin.
Idelalisib Idelalisib The metabolism of Idelalisib can be increased when combined with Rifampicin.
Testosterone Injection Testosterone Injection The metabolism of Testosterone can be increased when combined with Rifampicin.
Vorapaxar Vorapaxar The metabolism of Vorapaxar can be increased when combined with Rifampicin.
Hydrocodone Hydrocodone The metabolism of Hydrocodone can be increased when combined with Rifampicin.
Suvorexant Suvorexant The metabolism of Suvorexant can be increased when combined with Rifampicin.
Olaparib Olaparib The metabolism of Olaparib can be increased when combined with Rifampicin.
Caspofungin Injection Caspofungin Injection The serum concentration of Caspofungin can be decreased when it is combined with Rifampicin.
Tasimelteon Tasimelteon The metabolism of Rifampicin can be increased when combined with Tasimelteon.
Riociguat Riociguat The metabolism of Riociguat can be increased when combined with Rifampicin.
Pirfenidone Pirfenidone The serum concentration of Pirfenidone can be decreased when it is combined with Rifampicin.
Nintedanib Nintedanib The serum concentration of Rifampicin can be decreased when it is combined with Nintedanib.
Risperidone Injection Risperidone Injection The metabolism of Risperidone can be increased when combined with Rifampicin.
Palbociclib Palbociclib The metabolism of Palbociclib can be increased when combined with Rifampicin.
Lenvatinib Lenvatinib The risk or severity of liver damage can be increased when Rifampicin is combined with Lenvatinib.
Panobinostat Panobinostat The metabolism of Panobinostat can be increased when combined with Rifampicin.
Haloperidol Injection Haloperidol Injection The metabolism of Haloperidol can be increased when combined with Rifampicin.
Sonidegib Sonidegib The metabolism of Sonidegib can be increased when combined with Rifampicin.
Daclatasvir Daclatasvir The metabolism of Rifampicin can be increased when combined with Daclatasvir.
Brexpiprazole Brexpiprazole The metabolism of Brexpiprazole can be increased when combined with Rifampicin.
Ziprasidone Injection Ziprasidone Injection The metabolism of Rifampicin can be increased when combined with Ziprasidone.
Eluxadoline Eluxadoline The serum concentration of Eluxadoline can be increased when it is combined with Rifampicin.
Cobimetinib Cobimetinib The metabolism of Rifampicin can be increased when combined with Cobimetinib.
Trabectedin Injection Trabectedin Injection The metabolism of Trabectedin can be increased when combined with Rifampicin.
Osimertinib Osimertinib The metabolism of Osimertinib can be increased when combined with Rifampicin.
Alectinib Alectinib The metabolism of Alectinib can be increased when combined with Rifampicin.
Ixazomib Ixazomib The metabolism of Ixazomib can be increased when combined with Rifampicin.
Dexamethasone Injection Dexamethasone Injection The metabolism of Dexamethasone can be increased when combined with Rifampicin.
Venetoclax Venetoclax The metabolism of Venetoclax can be increased when combined with Rifampicin.
Cobicistat Cobicistat The metabolism of Rifampicin can be increased when combined with Cobicistat.
Selexipag Selexipag The metabolism of Selexipag can be increased when combined with Rifampicin.
Obeticholic Acid Obeticholic Acid The risk or severity of adverse effects can be increased when Rifampicin is combined with Obeticholic acid.
Furosemide Injection Furosemide Injection The metabolism of Furosemide can be increased when combined with Rifampicin.
Rucaparib Rucaparib The metabolism of Rifampicin can be increased when combined with Rucaparib.
Ribociclib Ribociclib The metabolism of Rifampicin can be increased when combined with Ribociclib.
Brigatinib Brigatinib The metabolism of Brigatinib can be increased when combined with Rifampicin.
Doxepin (Insomnia) Doxepin (Insomnia) The metabolism of Doxepin can be increased when combined with Rifampicin.
Deutetrabenazine Deutetrabenazine The metabolism of Deutetrabenazine can be increased when combined with Rifampicin.
Valbenazine Valbenazine The metabolism of Valbenazine can be increased when combined with Rifampicin.
Deflazacort Deflazacort The serum concentration of Deflazacort can be decreased when it is combined with Rifampicin.
Edaravone Injection Edaravone Injection The excretion of Edaravone can be decreased when combined with Rifampicin.
Midostaurin Midostaurin The metabolism of Midostaurin can be increased when combined with Rifampicin.
Neratinib Neratinib The metabolism of Neratinib can be increased when combined with Rifampicin.
Enasidenib Enasidenib The metabolism of Rifampicin can be increased when combined with Enasidenib.
Inotuzumab Ozogamicin Injection Inotuzumab Ozogamicin Injection The serum concentration of Inotuzumab ozogamicin can be decreased when it is combined with Rifampicin.
Aprepitant/Fosaprepitant Injection Aprepitant/Fosaprepitant Injection The metabolism of Fosaprepitant can be increased when combined with Rifampicin.
Copanlisib Injection Copanlisib Injection The metabolism of Copanlisib can be increased when combined with Rifampicin.
Delafloxacin Delafloxacin The metabolism of Delafloxacin can be increased when combined with Rifampicin.
Abemaciclib Abemaciclib The metabolism of Abemaciclib can be increased when combined with Rifampicin.
Acalabrutinib Acalabrutinib The metabolism of Acalabrutinib can be increased when combined with Rifampicin.
Letermovir Letermovir The risk or severity of liver damage can be increased when Rifampicin is combined with Letermovir.
Ertugliflozin Ertugliflozin The metabolism of Ertugliflozin can be increased when combined with Rifampicin.
Buprenorphine Injection Buprenorphine Injection The metabolism of Buprenorphine can be increased when combined with Rifampicin.
Apalutamide Apalutamide The metabolism of Apalutamide can be increased when combined with Rifampicin.
Penicillamine Penicillamine The excretion of Penicillamine can be decreased when combined with Rifampicin.
Fostamatinib Fostamatinib The metabolism of Fostamatinib can be decreased when combined with Rifampicin.
Baricitinib Baricitinib The metabolism of Rifampicin can be increased when combined with Baricitinib.
Sodium Zirconium Cyclosilicate Sodium Zirconium Cyclosilicate Sodium zirconium cyclosilicate can cause a decrease in the absorption of Rifampicin resulting in a reduced serum concentration and potentially a decrease in efficacy.
Lofexidine Lofexidine The metabolism of Lofexidine can be increased when combined with Rifampicin.
Binimetinib Binimetinib The serum concentration of Binimetinib can be decreased when it is combined with Rifampicin.
Ivosidenib Ivosidenib The metabolism of Ivosidenib can be increased when combined with Rifampicin.
Elagolix Elagolix The metabolism of Elagolix can be increased when combined with Rifampicin.
Doravirine Doravirine The metabolism of Doravirine can be increased when combined with Rifampicin.
Cannabidiol Cannabidiol The metabolism of Cannabidiol can be increased when combined with Rifampicin.
Dacomitinib Dacomitinib The metabolism of Dacomitinib can be increased when combined with Rifampicin.
Duvelisib Duvelisib The metabolism of Rifampicin can be increased when combined with Duvelisib.
Stiripentol Stiripentol The metabolism of Stiripentol can be increased when combined with Rifampicin.
Talazoparib Talazoparib The serum concentration of Talazoparib can be decreased when it is combined with Rifampicin.
Gilteritinib Gilteritinib The metabolism of Rifampicin can be increased when combined with Gilteritinib.
Glasdegib Glasdegib The metabolism of Glasdegib can be increased when combined with Rifampicin.
Lorlatinib Lorlatinib The metabolism of Lorlatinib can be increased when combined with Rifampicin.
Paclitaxel (with albumin) Injection Paclitaxel (with albumin) Injection The metabolism of Paclitaxel can be increased when combined with Rifampicin.
Rifamycin Rifamycin The excretion of Rifampicin can be decreased when combined with Rifamycin.
Prucalopride Prucalopride The metabolism of Prucalopride can be increased when combined with Rifampicin.
Siponimod Siponimod The therapeutic efficacy of Siponimod can be decreased when used in combination with Rifampicin.
Acyclovir Ophthalmic Acyclovir Ophthalmic The metabolism of Acyclovir can be increased when combined with Rifampicin.
Erdafitinib Erdafitinib The metabolism of Erdafitinib can be increased when combined with Rifampicin.
Esomeprazole Injection Esomeprazole Injection The serum concentration of Esomeprazole can be decreased when it is combined with Rifampicin.
Alpelisib Alpelisib The serum concentration of Alpelisib can be decreased when it is combined with Rifampicin.
Polatuzumab vedotin-piiq Injection Polatuzumab vedotin-piiq Injection The risk or severity of adverse effects can be decreased when Rifampicin is combined with Polatuzumab vedotin.
Selinexor Selinexor The excretion of Rifampicin can be decreased when combined with Selinexor.
Darolutamide Darolutamide The serum concentration of Darolutamide can be decreased when it is combined with Rifampicin.
Triclabendazole Triclabendazole The metabolism of Triclabendazole can be increased when combined with Rifampicin.
Entrectinib Entrectinib The metabolism of Entrectinib can be increased when combined with Rifampicin.
Pexidartinib Pexidartinib The metabolism of Pexidartinib can be increased when combined with Rifampicin.
Upadacitinib Upadacitinib The metabolism of Upadacitinib can be increased when combined with Rifampicin.
Istradefylline Istradefylline The serum concentration of Istradefylline can be decreased when it is combined with Rifampicin.
Pitolisant Pitolisant The metabolism of Pitolisant can be increased when combined with Rifampicin.
Fedratinib Fedratinib The metabolism of Rifampicin can be increased when combined with Fedratinib.
Lefamulin Lefamulin The metabolism of Lefamulin can be increased when combined with Rifampicin.
Phenytoin Injection Phenytoin Injection The serum concentration of Phenytoin can be decreased when it is combined with Rifampicin.
Fosphenytoin Injection Fosphenytoin Injection The serum concentration of Fosphenytoin can be decreased when it is combined with Rifampicin.
Zanubrutinib Zanubrutinib The metabolism of Zanubrutinib can be increased when combined with Rifampicin.
Voxelotor Voxelotor The serum concentration of Voxelotor can be decreased when it is combined with Rifampicin.
Lumateperone Lumateperone The serum concentration of Lumateperone can be decreased when it is combined with Rifampicin.
Ubrogepant Ubrogepant The serum concentration of Ubrogepant can be decreased when it is combined with Rifampicin.
Tazemetostat Tazemetostat The metabolism of Tazemetostat can be increased when combined with Rifampicin.
Bempedoic Acid Bempedoic Acid The excretion of Bempedoic acid can be decreased when combined with Rifampicin.
Cenobamate Cenobamate The metabolism of Cenobamate can be increased when combined with Rifampicin.
Pemigatinib Pemigatinib The metabolism of Pemigatinib can be increased when combined with Rifampicin.
Ozanimod Ozanimod The metabolism of Ozanimod can be increased when combined with Rifampicin.
Selumetinib Selumetinib The serum concentration of Selumetinib can be decreased when it is combined with Rifampicin.
Rimegepant Rimegepant The metabolism of Rimegepant can be increased when combined with Rifampicin.
Tucatinib Tucatinib The metabolism of Tucatinib can be increased when combined with Rifampicin.
Remdesivir Injection Remdesivir Injection The excretion of Remdesivir can be decreased when combined with Rifampicin.
Sacituzumab govitecan-hziy Injection Sacituzumab govitecan-hziy Injection The serum concentration of Sacituzumab govitecan can be decreased when it is combined with Rifampicin.
Ripretinib Ripretinib The serum concentration of Ripretinib can be decreased when it is combined with Rifampicin.
Selpercatinib Selpercatinib The serum concentration of Selpercatinib can be decreased when it is combined with Rifampicin.
Capmatinib Capmatinib The serum concentration of Capmatinib can be decreased when it is combined with Rifampicin.
Lemborexant Lemborexant The serum concentration of Lemborexant can be decreased when it is combined with Rifampicin.
Fenfluramine Fenfluramine The serum concentration of Fenfluramine can be decreased when it is combined with Rifampicin.
Fostemsavir Fostemsavir The serum concentration of Fostemsavir can be decreased when it is combined with Rifampicin.
Lurbinectedin Injection Lurbinectedin Injection The serum concentration of Lurbinectedin can be decreased when it is combined with Rifampicin.
Belantamab Mafodotin-blmf Injection Belantamab Mafodotin-blmf Injection Rifampicin may decrease the excretion rate of Belantamab mafodotin which could result in a higher serum level.
Pralsetinib Pralsetinib The serum concentration of Pralsetinib can be decreased when it is combined with Rifampicin.
Relugolix Relugolix The serum concentration of Relugolix can be decreased when it is combined with Rifampicin.
Progestin-Only (drospirenone) Oral Contraceptives Progestin-Only (drospirenone) Oral Contraceptives The metabolism of Rifampicin can be increased when combined with Drospirenone.
Theophylline Theophylline The metabolism of Theophylline can be increased when combined with Rifampicin.
Indomethacin Indomethacin The excretion of Indomethacin can be decreased when combined with Rifampicin.
Naproxen Naproxen The metabolism of Naproxen can be increased when combined with Rifampicin.
Trazodone Trazodone The serum concentration of Trazodone can be decreased when it is combined with Rifampicin.
Sodium Bicarbonate Sodium Bicarbonate Sodium bicarbonate can cause a decrease in the absorption of Rifampicin resulting in a reduced serum concentration and potentially a decrease in efficacy.
Phenobarbital Phenobarbital The metabolism of Phenobarbital can be increased when combined with Rifampicin.
Methotrexate Injection Methotrexate Injection The metabolism of Methotrexate can be increased when combined with Rifampicin.
Primidone Primidone The metabolism of Rifampicin can be increased when combined with Primidone.
Methsuximide Methsuximide The metabolism of Methsuximide can be increased when combined with Rifampicin.
Chlorpromazine Chlorpromazine The metabolism of Chlorpromazine can be increased when combined with Rifampicin.
Diazepam Diazepam The metabolism of Diazepam can be increased when combined with Rifampicin.
Oxazepam Oxazepam The metabolism of Oxazepam can be increased when combined with Rifampicin.
Flurazepam Flurazepam The metabolism of Flurazepam can be increased when combined with Rifampicin.
Lorazepam Lorazepam The metabolism of Rifampicin can be increased when combined with Lorazepam.
Carmustine Carmustine The metabolism of Carmustine can be increased when combined with Rifampicin.
Tetracycline Tetracycline The excretion of Tetracycline can be decreased when combined with Rifampicin.
Prochlorperazine Prochlorperazine The metabolism of Rifampicin can be increased when combined with Prochlorperazine.
Thioridazine Thioridazine The metabolism of Thioridazine can be increased when combined with Rifampicin.
Trifluoperazine Trifluoperazine The metabolism of Trifluoperazine can be increased when combined with Rifampicin.
Dapsone Dapsone The metabolism of Dapsone can be increased when combined with Rifampicin.
Sulfadiazine Sulfadiazine The metabolism of Sulfadiazine can be increased when combined with Rifampicin.
Oxycodone Oxycodone The metabolism of Oxycodone can be increased when combined with Rifampicin.
Methadone Methadone The metabolism of Methadone can be increased when combined with Rifampicin.
Oxybutynin Oxybutynin The metabolism of Oxybutynin can be increased when combined with Rifampicin.
Maprotiline Maprotiline The metabolism of Maprotiline can be increased when combined with Rifampicin.
Ibuprofen Ibuprofen The metabolism of Ibuprofen can be increased when combined with Rifampicin.
Perphenazine Perphenazine The metabolism of Perphenazine can be increased when combined with Rifampicin.
Azathioprine Azathioprine The metabolism of Azathioprine can be increased when combined with Rifampicin.
Phentermine Phentermine The metabolism of Rifampicin can be increased when combined with Phentermine.
Sulfasalazine Sulfasalazine The excretion of Rifampicin can be decreased when combined with Sulfasalazine.
Hydrocortisone Hydrocortisone The metabolism of Hydrocortisone can be increased when combined with Rifampicin.
Doxorubicin Doxorubicin The serum concentration of Doxorubicin can be decreased when it is combined with Rifampicin.
Dactinomycin Dactinomycin The serum concentration of Dactinomycin can be decreased when it is combined with Rifampicin.
Carbamazepine Carbamazepine The metabolism of Rifampicin can be increased when combined with Carbamazepine.
Clonidine Clonidine The metabolism of Clonidine can be increased when combined with Rifampicin.
Cimetidine Cimetidine Cimetidine can cause a decrease in the absorption of Rifampicin resulting in a reduced serum concentration and potentially a decrease in efficacy.
Warfarin Warfarin The metabolism of Warfarin can be increased when combined with Rifampicin.
Clonazepam Clonazepam The metabolism of Clonazepam can be increased when combined with Rifampicin.
Loperamide Loperamide The metabolism of Loperamide can be increased when combined with Rifampicin.
Daunorubicin Daunorubicin Rifampicin may decrease the excretion rate of Daunorubicin which could result in a higher serum level.
Nitrofurantoin Nitrofurantoin Rifampicin may decrease the excretion rate of Nitrofurantoin which could result in a higher serum level.
Digoxin Digoxin The serum concentration of Digoxin can be decreased when it is combined with Rifampicin.
Chloroquine Chloroquine The metabolism of Chloroquine can be increased when combined with Rifampicin.
Quinine Quinine The metabolism of Quinine can be increased when combined with Rifampicin.
Ethosuximide Ethosuximide The metabolism of Ethosuximide can be increased when combined with Rifampicin.
Triamterene Triamterene The metabolism of Triamterene can be increased when combined with Rifampicin.
Lactulose Lactulose The therapeutic efficacy of Lactulose can be decreased when used in combination with Rifampicin.
Sulfinpyrazone Sulfinpyrazone Rifampicin may decrease the excretion rate of Sulfinpyrazone which could result in a higher serum level.
Isosorbide Isosorbide The metabolism of Isosorbide can be increased when combined with Rifampicin.
Clindamycin Injection Clindamycin Injection The metabolism of Clindamycin can be increased when combined with Rifampicin.
Amitriptyline Amitriptyline The metabolism of Amitriptyline can be increased when combined with Rifampicin.
Imipramine Imipramine The serum concentration of Imipramine can be decreased when it is combined with Rifampicin.
Quinidine Quinidine The metabolism of Quinidine can be increased when combined with Rifampicin.
Disopyramide Disopyramide The metabolism of Disopyramide can be increased when combined with Rifampicin.
Valproic Acid Valproic Acid The metabolism of Valproic acid can be increased when combined with Rifampicin.
Tamoxifen Tamoxifen The serum concentration of Rifampicin can be decreased when it is combined with Tamoxifen.
Levothyroxine Levothyroxine The metabolism of Levothyroxine can be increased when combined with Rifampicin.
Liothyronine Liothyronine The metabolism of Liothyronine can be increased when combined with Rifampicin.
Chlorpropamide Chlorpropamide The serum concentration of Chlorpropamide can be decreased when it is combined with Rifampicin.
Tolbutamide Tolbutamide The serum concentration of Tolbutamide can be decreased when it is combined with Rifampicin.
Tolazamide Tolazamide The serum concentration of Tolazamide can be decreased when it is combined with Rifampicin.
Dextromethorphan Dextromethorphan The metabolism of Dextromethorphan can be increased when combined with Rifampicin.
Dinoprostone Dinoprostone The excretion of Dinoprostone can be decreased when combined with Rifampicin.
Cyclobenzaprine Cyclobenzaprine The metabolism of Cyclobenzaprine can be increased when combined with Rifampicin.
Chlorpheniramine Chlorpheniramine The metabolism of Chlorpheniramine can be increased when combined with Rifampicin.
Hydrochlorothiazide Hydrochlorothiazide The excretion of Hydrochlorothiazide can be decreased when combined with Rifampicin.
Chlorzoxazone Chlorzoxazone The metabolism of Chlorzoxazone can be increased when combined with Rifampicin.
Carisoprodol Carisoprodol The metabolism of Carisoprodol can be increased when combined with Rifampicin.
Disulfiram Disulfiram The metabolism of Disulfiram can be increased when combined with Rifampicin.
Propranolol (Cardiovascular) Propranolol (Cardiovascular) The serum concentration of Propranolol can be decreased when it is combined with Rifampicin.
Minoxidil Minoxidil The metabolism of Minoxidil can be increased when combined with Rifampicin.
Nortriptyline Nortriptyline The serum concentration of Nortriptyline can be decreased when it is combined with Rifampicin.
Spironolactone Spironolactone Rifampicin may decrease the excretion rate of Spironolactone which could result in a higher serum level.
Mercaptopurine Mercaptopurine The excretion of Mercaptopurine can be decreased when combined with Rifampicin.
Nadolol Nadolol The metabolism of Nadolol can be increased when combined with Rifampicin.
Allopurinol Allopurinol The excretion of Allopurinol can be decreased when combined with Rifampicin.
Fluorouracil Injection Fluorouracil Injection The metabolism of Fluorouracil can be decreased when combined with Rifampicin.
Cefaclor Cefaclor Rifampicin may decrease the excretion rate of Cefaclor which could result in a higher serum level.
Cefazolin Injection Cefazolin Injection The excretion of Cefazolin can be decreased when combined with Rifampicin.
Cephalexin Cephalexin The metabolism of Rifampicin can be increased when combined with Cephalexin.
Dacarbazine Dacarbazine The metabolism of Dacarbazine can be increased when combined with Rifampicin.
Nystatin Nystatin The excretion of Rifampicin can be decreased when combined with Nystatin.
Ketoconazole Ketoconazole Rifampicin may decrease the excretion rate of Ketoconazole which could result in a higher serum level.
Thiotepa Injection Thiotepa Injection The metabolism of Thiotepa can be increased when combined with Rifampicin.
Vincristine Injection Vincristine Injection The serum concentration of Vincristine can be decreased when it is combined with Rifampicin.
Captopril Captopril The excretion of Captopril can be decreased when combined with Rifampicin.
Dipyridamole Dipyridamole Dipyridamole may decrease the excretion rate of Rifampicin which could result in a higher serum level.
Vinblastine Vinblastine The metabolism of Vinblastine can be increased when combined with Rifampicin.
Metoprolol Metoprolol The metabolism of Metoprolol can be increased when combined with Rifampicin.
Hydroxyzine Hydroxyzine The metabolism of Hydroxyzine can be increased when combined with Rifampicin.
Thiothixene Thiothixene The metabolism of Thiothixene can be increased when combined with Rifampicin.
Alprazolam Alprazolam The metabolism of Alprazolam can be increased when combined with Rifampicin.
Triazolam Triazolam The metabolism of Triazolam can be increased when combined with Rifampicin.
Diltiazem Diltiazem The metabolism of Diltiazem can be increased when combined with Rifampicin.
Nifedipine Nifedipine The metabolism of Nifedipine can be increased when combined with Rifampicin.
Timolol Timolol The metabolism of Timolol can be increased when combined with Rifampicin.
Verapamil Verapamil The metabolism of Verapamil can be increased when combined with Rifampicin.
Atenolol Atenolol The metabolism of Atenolol can be increased when combined with Rifampicin.
Pindolol Pindolol The metabolism of Pindolol can be increased when combined with Rifampicin.
Piroxicam Piroxicam The metabolism of Piroxicam can be increased when combined with Rifampicin.
Bumetanide Bumetanide The excretion of Bumetanide can be decreased when combined with Rifampicin.
Etoposide Etoposide The metabolism of Etoposide can be increased when combined with Rifampicin.
Glyburide Glyburide The serum concentration of Glyburide can be decreased when it is combined with Rifampicin.
Glipizide Glipizide The serum concentration of Glipizide can be decreased when it is combined with Rifampicin.
Pentoxifylline Pentoxifylline The metabolism of Pentoxifylline can be increased when combined with Rifampicin.
Pentamidine Injection Pentamidine Injection The metabolism of Pentamidine can be increased when combined with Rifampicin.
Labetalol Labetalol The metabolism of Labetalol can be increased when combined with Rifampicin.
Gemfibrozil Gemfibrozil The metabolism of Rifampicin can be increased when combined with Gemfibrozil.
Guanabenz Guanabenz The metabolism of Guanabenz can be increased when combined with Rifampicin.
Dipivefrin Ophthalmic Dipivefrin Ophthalmic The excretion of Adefovir dipivoxil can be decreased when combined with Rifampicin.
Ketoprofen Ketoprofen The metabolism of Ketoprofen can be increased when combined with Rifampicin.
Pimozide Pimozide The metabolism of Pimozide can be increased when combined with Rifampicin.
Enalapril Enalapril The excretion of Enalapril can be decreased when combined with Rifampicin.
Flurbiprofen Flurbiprofen The metabolism of Flurbiprofen can be increased when combined with Rifampicin.
Amiodarone Amiodarone The serum concentration of Amiodarone can be decreased when it is combined with Rifampicin.
Buspirone Buspirone The serum concentration of Buspirone can be decreased when it is combined with Rifampicin.
Lovastatin Lovastatin The metabolism of Lovastatin can be increased when combined with Rifampicin.
Diclofenac Diclofenac The metabolism of Diclofenac can be increased when combined with Rifampicin.
Fluoxetine Fluoxetine The metabolism of Fluoxetine can be increased when combined with Rifampicin.
Clozapine Clozapine The metabolism of Clozapine can be increased when combined with Rifampicin.
Ofloxacin Ofloxacin Rifampicin may decrease the excretion rate of Ofloxacin which could result in a higher serum level.
Didanosine Didanosine The excretion of Didanosine can be decreased when combined with Rifampicin.
Clarithromycin Clarithromycin The metabolism of Clarithromycin can be increased when combined with Rifampicin.
Etodolac Etodolac The metabolism of Etodolac can be increased when combined with Rifampicin.
Felodipine Felodipine The metabolism of Felodipine can be increased when combined with Rifampicin.
Nabumetone Nabumetone The metabolism of Nabumetone can be increased when combined with Rifampicin.
Pravastatin Pravastatin Rifampicin may decrease the excretion rate of Pravastatin which could result in a higher serum level.
Quinapril Quinapril The excretion of Quinapril can be decreased when combined with Rifampicin.
Simvastatin Simvastatin The metabolism of Simvastatin can be increased when combined with Rifampicin.
Teniposide Injection Teniposide Injection The metabolism of Teniposide can be increased when combined with Rifampicin.
Sotalol Sotalol The metabolism of Sotalol can be increased when combined with Rifampicin.
Bisoprolol Bisoprolol The metabolism of Bisoprolol can be increased when combined with Rifampicin.
Zolpidem Zolpidem The therapeutic efficacy of Zolpidem can be decreased when used in combination with Rifampicin.
Doxazosin Doxazosin The metabolism of Doxazosin can be increased when combined with Rifampicin.
Isradipine Isradipine Rifampicin may decrease the excretion rate of Isradipine which could result in a higher serum level.
Omeprazole Omeprazole The serum concentration of Omeprazole can be decreased when it is combined with Rifampicin.
Cisapride Cisapride The metabolism of Cisapride can be increased when combined with Rifampicin.
Fluvastatin Fluvastatin The metabolism of Fluvastatin can be increased when combined with Rifampicin.
Nizatidine Nizatidine Nizatidine can cause a decrease in the absorption of Rifampicin resulting in a reduced serum concentration and potentially a decrease in efficacy.
Stavudine Stavudine The excretion of Stavudine can be decreased when combined with Rifampicin.
Famciclovir Famciclovir The metabolism of Rifampicin can be increased when combined with Famciclovir.
Fluvoxamine Fluvoxamine The metabolism of Fluvoxamine can be increased when combined with Rifampicin.
Nefazodone Nefazodone Nefazodone may decrease the excretion rate of Rifampicin which could result in a higher serum level.
Lamotrigine Lamotrigine The serum concentration of Lamotrigine can be decreased when it is combined with Rifampicin.
Losartan Losartan The serum concentration of Losartan can be decreased when it is combined with Rifampicin.
Valacyclovir Valacyclovir The excretion of Valaciclovir can be decreased when combined with Rifampicin.
Tramadol Tramadol The metabolism of Tramadol can be increased when combined with Rifampicin.
Vinorelbine Injection Vinorelbine Injection The metabolism of Vinorelbine can be increased when combined with Rifampicin.
Lansoprazole Lansoprazole Lansoprazole can cause a decrease in the absorption of Rifampicin resulting in a reduced serum concentration and potentially a decrease in efficacy.
Alprostadil Urogenital Alprostadil Urogenital The excretion of Alprostadil can be decreased when combined with Rifampicin.
Ifosfamide Injection Ifosfamide Injection The metabolism of Ifosfamide can be increased when combined with Rifampicin.
Nicardipine Nicardipine The metabolism of Nicardipine can be increased when combined with Rifampicin.
Ticlopidine Ticlopidine The metabolism of Rifampicin can be increased when combined with Ticlopidine.
Saquinavir Saquinavir The serum concentration of Saquinavir can be decreased when it is combined with Rifampicin.
Nisoldipine Nisoldipine The metabolism of Nisoldipine can be increased when combined with Rifampicin.
Lamivudine Lamivudine The excretion of Lamivudine can be decreased when combined with Rifampicin.
Riluzole Riluzole The metabolism of Riluzole can be increased when combined with Rifampicin.
Glimepiride Glimepiride The serum concentration of Glimepiride can be decreased when it is combined with Rifampicin.
Anastrozole Anastrozole The metabolism of Anastrozole can be increased when combined with Rifampicin.
Gemcitabine Injection Gemcitabine Injection The serum concentration of Gemcitabine can be decreased when it is combined with Rifampicin.
Indinavir Indinavir The metabolism of Indinavir can be increased when combined with Rifampicin.
Ritonavir Ritonavir The serum concentration of Ritonavir can be decreased when it is combined with Rifampicin.
Docetaxel Injection Docetaxel Injection The metabolism of Docetaxel can be increased when combined with Rifampicin.
Cidofovir Injection Cidofovir Injection The excretion of Cidofovir can be decreased when combined with Rifampicin.
Clomipramine Clomipramine The metabolism of Clomipramine can be increased when combined with Rifampicin.
Zafirlukast Zafirlukast The metabolism of Zafirlukast can be increased when combined with Rifampicin.
Mirtazapine Mirtazapine The metabolism of Mirtazapine can be increased when combined with Rifampicin.
Zileuton Zileuton The metabolism of Zileuton can be increased when combined with Rifampicin.
Valsartan Valsartan The excretion of Valsartan can be decreased when combined with Rifampicin.
Nelfinavir Nelfinavir Nelfinavir may decrease the excretion rate of Rifampicin which could result in a higher serum level.
Fexofenadine Fexofenadine The serum concentration of Fexofenadine can be increased when it is combined with Rifampicin.
Azithromycin Azithromycin The metabolism of Azithromycin can be increased when combined with Rifampicin.
Loratadine Loratadine Rifampicin may decrease the excretion rate of Loratadine which could result in a higher serum level.
Carvedilol Carvedilol The metabolism of Carvedilol can be increased when combined with Rifampicin.
Flutamide Flutamide The metabolism of Flutamide can be increased when combined with Rifampicin.
Selegiline Selegiline The metabolism of Selegiline can be increased when combined with Rifampicin.
Bicalutamide Bicalutamide The metabolism of Bicalutamide can be increased when combined with Rifampicin.
Sertraline Sertraline The metabolism of Sertraline can be increased when combined with Rifampicin.
Propafenone Propafenone The metabolism of Propafenone can be increased when combined with Rifampicin.
Letrozole Letrozole The metabolism of Letrozole can be increased when combined with Rifampicin.
Raloxifene Raloxifene The metabolism of Raloxifene can be increased when combined with Rifampicin.
Irbesartan Irbesartan The metabolism of Irbesartan can be increased when combined with Rifampicin.
Ropinirole Ropinirole The metabolism of Ropinirole can be increased when combined with Rifampicin.
Finasteride Finasteride The metabolism of Finasteride can be increased when combined with Rifampicin.
Quetiapine Quetiapine The metabolism of Quetiapine can be increased when combined with Rifampicin.
Paroxetine Paroxetine The metabolism of Paroxetine can be increased when combined with Rifampicin.
Citalopram Citalopram The serum concentration of Citalopram can be decreased when it is combined with Rifampicin.
Efavirenz Efavirenz The metabolism of Efavirenz can be increased when combined with Rifampicin.
Abacavir Abacavir The metabolism of Abacavir can be increased when combined with Rifampicin.
Sildenafil Sildenafil The metabolism of Sildenafil can be increased when combined with Rifampicin.
Pioglitazone Pioglitazone The metabolism of Pioglitazone can be increased when combined with Rifampicin.
Celecoxib Celecoxib The metabolism of Celecoxib can be increased when combined with Rifampicin.
Rosiglitazone Rosiglitazone The metabolism of Rosiglitazone can be increased when combined with Rifampicin.
Oseltamivir Oseltamivir The excretion of Oseltamivir can be decreased when combined with Rifampicin.
Aluminum Hydroxide Aluminum Hydroxide Aluminum hydroxide can cause a decrease in the absorption of Rifampicin resulting in a reduced serum concentration and potentially a decrease in efficacy.
Nateglinide Nateglinide The metabolism of Nateglinide can be increased when combined with Rifampicin.
Rabeprazole Rabeprazole Rabeprazole can cause a decrease in the absorption of Rifampicin resulting in a reduced serum concentration and potentially a decrease in efficacy.
Terbinafine Terbinafine The metabolism of Terbinafine can be increased when combined with Rifampicin.

Content provided by: AHFS® Patient Medication Information™. © Copyright, 2021. The American Society of Health-System Pharmacists

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