Famciclovir
Generic name: Pronounced as (fam sye' kloe veer)
Medical Content Reviewed By HelloPharmacist Staff
Last Revised - 12/15/2017
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?
Famciclovir is used to treat herpes zoster (shingles; a rash that can occur in people who have had chickenpox in the past). It is also used to treat repeat outbreaks of herpes virus cold sores or fever blisters in people with a normal immune system. Famciclovir is used to treat repeat outbreaks and to prevent further outbreaks of genital herpes (a herpes virus infection that causes sores to form around the genitals and rectum from time to time) in people with a normal immune system. Famciclovir is also used to treat returning herpes simplex infections of the skin and mucus membranes (mouth, anus) in people with human immunodeficiency virus (HIV) infection. Famciclovir is in a class of medications called antivirals. It works by stopping the spread of the herpes virus in the body. Famciclovir does not cure herpes infections and may not stop the spread of herpes virus to other people. However, it may decrease the symptoms of pain, burning, tingling, tenderness, and itching; help sores to heal; and prevent new sores from forming.
How should this medicine be used?
Famciclovir comes as a tablet to take by mouth with or without food. When famciclovir is used to treat shingles, it is usually taken every 8 hours (three times a day) for 7 days, starting within 3 days after the rash begins to appear. When famciclovir is used to treat cold sores and fever blisters, it is usually taken as one dose at the earliest sign or symptom (tingling, itching, or burning) of a cold sore. When famciclovir is used to treat repeat outbreaks of genital herpes, it is usually taken twice a day for one day, starting within 6 hours of the first sign or symptom of the condition. To keep genital herpes from returning, famciclovir is usually taken twice a day for up to 1 year. When famciclovir is used to treat herpes infection in people infected with HIV, it is usually taken twice a day for 7 days. Follow the directions on your prescription label carefully, and ask your doctor or pharmacist to explain any part you do not understand. Take famciclovir exactly as directed. Do not take more or less of it or take it more often than prescribed by your doctor. Use this medication as soon as possible after symptoms appear.
Continue to take famciclovir even if you feel well. Do not stop taking famciclovir without talking to your doctor.
Other uses for this medicine
This medication may be prescribed for other uses; ask your doctor or pharmacist for more information.
What special precautions should I follow?
Before taking famciclovir,
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tell your doctor and pharmacist if you are allergic to famciclovir, penciclovir cream (Denavir), acyclovir (Zovirax), any other medications, or lactose.
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tell your doctor and pharmacist what other prescription and nonprescription medications, vitamins, nutritional supplement, and herbal products you are taking or plan to take, especially probenecid (Benemid).
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tell your doctor if you have or have ever had problems with your immune system, human immunodeficiency virus infection (HIV), or acquired immunodeficiency syndrome (AIDS); galactose intolerance or glucose-galactose malabsorption (inherited conditions where the body is not able to tolerate lactose); or kidney or liver disease.
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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 famciclovir, call your doctor.
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you should know that famciclovir may make you drowsy, dizzy, confused, or disoriented. Do not drive a car or operate machinery until you know how this medication affects you.
What special dietary instructions should I follow?
Unless your doctor tells you otherwise, continue your normal diet.
What should I do if I forget a dose?
Take the missed dose as soon as you remember it, and take any remaining doses for that day at evenly spaced intervals. 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.
What side effects can this medication cause?
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Famciclovir may cause side effects. Tell your doctor if any of these symptoms or those listed in the SPECIAL PRECAUTIONS section above are severe or do not go away:
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headache
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nausea
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vomiting
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diarrhea or loose stools
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gas
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stomach pain
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tiredness
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rash
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itching
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painful menstrual periods
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If you experience any of the following side effects, call your doctor immediately:
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pain, burning, numbness, or tingling in the hands or feet
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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 may order certain lab tests to check your response to famciclovir.
Do not have sexual intercourse when you are having an outbreak of genital herpes. However, genital herpes can be spread to others, even when you do not have symptoms.
Do not let anyone else take your medication. Ask your pharmacist any questions you have about refilling your prescription. If you still have symptoms of infection after you finish the famciclovir, call your doctor.
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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Delavirdine | Delavirdine The metabolism of Famciclovir can be decreased when combined with Delavirdine. |
Aminophylline | Aminophylline The metabolism of Aminophylline can be decreased when combined with Famciclovir. |
Erythromycin and Sulfisoxazole | Erythromycin and Sulfisoxazole The metabolism of Famciclovir can be decreased when combined with Erythromycin. |
Fenofibrate | Fenofibrate The metabolism of Fenofibrate can be decreased when combined with Famciclovir. |
Methylergonovine | Methylergonovine The metabolism of Famciclovir can be decreased when combined with Methylergometrine. |
Tacrolimus | Tacrolimus The metabolism of Tacrolimus can be decreased when combined with Famciclovir. |
Triamcinolone | Triamcinolone The metabolism of Famciclovir can be increased when combined with Triamcinolone. |
Doxycycline Injection | Doxycycline Injection The metabolism of Famciclovir can be decreased when combined with Doxycycline. |
Fluconazole Injection | Fluconazole Injection The metabolism of Famciclovir can be decreased when combined with Fluconazole. |
Meperidine Injection | Meperidine Injection The metabolism of Famciclovir can be increased when combined with Meperidine. |
Methylprednisolone Injection | Methylprednisolone Injection The metabolism of Famciclovir can be increased when combined with Methylprednisolone. |
Metronidazole Injection | Metronidazole Injection The metabolism of Famciclovir can be decreased when combined with Metronidazole. |
Cyclosporine | Cyclosporine The metabolism of Cyclosporine can be decreased when combined with Famciclovir. |
Dofetilide | Dofetilide The metabolism of Dofetilide can be decreased when combined with Famciclovir. |
Orlistat | Orlistat The metabolism of Famciclovir can be increased when combined with Orlistat. |
Oxcarbazepine | Oxcarbazepine The metabolism of Famciclovir can be increased when combined with Oxcarbazepine. |
Anakinra | Anakinra The metabolism of Famciclovir can be increased when combined with Anakinra. |
Etanercept Injection | Etanercept Injection The metabolism of Famciclovir can be increased when combined with Etanercept. |
Modafinil | Modafinil The metabolism of Famciclovir can be increased when combined with Modafinil. |
Tenofovir | Tenofovir The metabolism of Tenofovir can be decreased when combined with Famciclovir. |
Sirolimus | Sirolimus The metabolism of Sirolimus can be decreased when combined with Famciclovir. |
Epinephrine Injection | Epinephrine Injection The metabolism of Famciclovir can be decreased when combined with Epinephrine. |
Adalimumab Injection | Adalimumab Injection The metabolism of Famciclovir can be increased when combined with Adalimumab. |
Atazanavir | Atazanavir The metabolism of Famciclovir can be decreased when combined with Atazanavir. |
Mefloquine | Mefloquine The metabolism of Famciclovir can be decreased when combined with Mefloquine. |
Rosuvastatin | Rosuvastatin The metabolism of Rosuvastatin can be decreased when combined with Famciclovir. |
Aprepitant | Aprepitant The metabolism of Famciclovir can be decreased when combined with Aprepitant. |
Progesterone | Progesterone The metabolism of Famciclovir can be increased when combined with Progesterone. |
Infliximab Injection | Infliximab Injection The metabolism of Famciclovir can be increased when combined with Infliximab. |
Rifaximin | Rifaximin The metabolism of Famciclovir can be increased when combined with Rifaximin. |
Duloxetine | Duloxetine The metabolism of Duloxetine can be decreased when combined with Famciclovir. |
Norethindrone | Norethindrone The metabolism of Norethisterone can be decreased when combined with Famciclovir. |
Bosentan | Bosentan The metabolism of Famciclovir can be increased when combined with Bosentan. |
Erlotinib | Erlotinib The metabolism of Famciclovir can be decreased when combined with Erlotinib. |
Voriconazole | Voriconazole The metabolism of Famciclovir can be decreased when combined with Voriconazole. |
Deferasirox | Deferasirox The metabolism of Famciclovir can be increased when combined with Deferasirox. |
Tipranavir | Tipranavir The metabolism of Tipranavir can be decreased when combined with Famciclovir. |
Felbamate | Felbamate The metabolism of Famciclovir can be increased when combined with Felbamate. |
Ranolazine | Ranolazine The metabolism of Famciclovir can be decreased when combined with Ranolazine. |
Abatacept Injection | Abatacept Injection The metabolism of Famciclovir can be increased when combined with Abatacept. |
Imatinib | Imatinib The metabolism of Famciclovir can be decreased when combined with Imatinib. |
Gefitinib | Gefitinib The metabolism of Famciclovir can be decreased when combined with Gefitinib. |
Bortezomib | Bortezomib The metabolism of Bortezomib can be decreased when combined with Famciclovir. |
Influenza Vaccine, Live Intranasal | Influenza Vaccine, Live Intranasal The therapeutic efficacy of Typhoid Vaccine Live can be decreased when used in combination with Famciclovir. |
Live Shingles (Zoster) Vaccine (ZVL) | Live Shingles (Zoster) Vaccine (ZVL) The therapeutic efficacy of Varicella Zoster Vaccine (Live/attenuated) can be decreased when used in combination with Famciclovir. |
Posaconazole | Posaconazole The metabolism of Famciclovir can be decreased when combined with Posaconazole. |
Primaquine | Primaquine The metabolism of Famciclovir can be decreased when combined with Primaquine. |
Darunavir | Darunavir The metabolism of Darunavir can be decreased when combined with Famciclovir. |
Sorafenib | Sorafenib The metabolism of Famciclovir can be decreased when combined with Sorafenib. |
Sunitinib | Sunitinib The metabolism of Famciclovir can be decreased when combined with Sunitinib. |
Lapatinib | Lapatinib The metabolism of Lapatinib can be decreased when combined with Famciclovir. |
Dasatinib | Dasatinib The metabolism of Dasatinib can be decreased when combined with Famciclovir. |
Armodafinil | Armodafinil The metabolism of Famciclovir can be increased when combined with Armodafinil. |
Ivermectin | Ivermectin The metabolism of Famciclovir can be increased when combined with Ivermectin. |
Temsirolimus | Temsirolimus The metabolism of Temsirolimus can be decreased when combined with Famciclovir. |
Nilotinib | Nilotinib The metabolism of Famciclovir can be decreased when combined with Nilotinib. |
Bexarotene | Bexarotene The metabolism of Famciclovir can be increased when combined with Bexarotene. |
Budesonide | Budesonide The metabolism of Famciclovir can be increased when combined with Budesonide. |
Chloramphenicol Injection | Chloramphenicol Injection The metabolism of Famciclovir can be decreased when combined with Chloramphenicol. |
Etravirine | Etravirine The metabolism of Famciclovir can be increased when combined with Etravirine. |
Mitoxantrone Injection | Mitoxantrone Injection The metabolism of Famciclovir can be decreased when combined with Mitoxantrone. |
Desvenlafaxine | Desvenlafaxine The metabolism of Famciclovir can be decreased when combined with Desvenlafaxine. |
Pilocarpine | Pilocarpine The metabolism of Famciclovir can be decreased when combined with Pilocarpine. |
Certolizumab Injection | Certolizumab Injection The metabolism of Famciclovir can be increased when combined with Certolizumab pegol. |
Ixabepilone Injection | Ixabepilone Injection The metabolism of Ixabepilone can be decreased when combined with Famciclovir. |
Irinotecan Injection | Irinotecan Injection The metabolism of Irinotecan can be decreased when combined with Famciclovir. |
Mitotane | Mitotane The metabolism of Famciclovir can be increased when combined with Mitotane. |
Rufinamide | Rufinamide The metabolism of Famciclovir can be increased when combined with Rufinamide. |
Midazolam | Midazolam The metabolism of Famciclovir can be decreased when combined with Midazolam. |
Milnacipran | Milnacipran The metabolism of Famciclovir can be decreased when combined with Milnacipran. |
Lacosamide | Lacosamide The metabolism of Lacosamide can be decreased when combined with Famciclovir. |
Everolimus | Everolimus The metabolism of Everolimus can be decreased when combined with Famciclovir. |
Tolvaptan (low blood sodium) | Tolvaptan (low blood sodium) The metabolism of Tolvaptan can be decreased when combined with Famciclovir. |
Dronedarone | Dronedarone The metabolism of Dronedarone can be decreased when combined with Famciclovir. |
Romidepsin Injection | Romidepsin Injection The metabolism of Romidepsin can be decreased when combined with Famciclovir. |
Topotecan | Topotecan The metabolism of Famciclovir can be increased when combined with Topotecan. |
Golimumab Injection | Golimumab Injection The metabolism of Famciclovir can be increased when combined with Golimumab. |
Pazopanib | Pazopanib The metabolism of Pazopanib can be decreased when combined with Famciclovir. |
Albendazole | Albendazole The metabolism of Albendazole can be decreased when combined with Famciclovir. |
Tocilizumab Injection | Tocilizumab Injection The metabolism of Famciclovir can be increased when combined with Tocilizumab. |
Cabazitaxel Injection | Cabazitaxel Injection The metabolism of Cabazitaxel can be decreased when combined with Famciclovir. |
Acetaminophen Injection | Acetaminophen Injection The metabolism of Famciclovir can be increased when combined with Acetaminophen. |
Denileukin Diftitox Injection | Denileukin Diftitox Injection The metabolism of Famciclovir can be decreased when combined with Aldesleukin. |
Busulfan Injection | Busulfan Injection The metabolism of Busulfan can be decreased when combined with Famciclovir. |
Roflumilast | Roflumilast The metabolism of Roflumilast can be decreased when combined with Famciclovir. |
Linagliptin | Linagliptin The metabolism of Famciclovir can be decreased when combined with Linagliptin. |
Rilpivirine | Rilpivirine The metabolism of Famciclovir can be decreased when combined with Rilpivirine. |
Telaprevir | Telaprevir The metabolism of Famciclovir can be decreased when combined with Glecaprevir. |
Cyclophosphamide Injection | Cyclophosphamide Injection The metabolism of Famciclovir can be decreased when combined with Cyclophosphamide. |
Ticagrelor | Ticagrelor The metabolism of Famciclovir can be decreased when combined with Ticagrelor. |
Brentuximab Vedotin Injection | Brentuximab Vedotin Injection The metabolism of Famciclovir can be decreased when combined with Brentuximab vedotin. |
Ruxolitinib | Ruxolitinib The metabolism of Ruxolitinib can be decreased when combined with Famciclovir. |
Vandetanib | Vandetanib The metabolism of Vandetanib can be decreased when combined with Famciclovir. |
Clobazam | Clobazam The metabolism of Famciclovir can be increased when combined with Clobazam. |
Vemurafenib | Vemurafenib The metabolism of Famciclovir can be decreased when combined with Vemurafenib. |
Ivacaftor | Ivacaftor The metabolism of Ivacaftor can be decreased when combined with Famciclovir. |
Axitinib | Axitinib The metabolism of Axitinib can be decreased when combined with Famciclovir. |
Crizotinib | Crizotinib The metabolism of Famciclovir can be decreased when combined with Crizotinib. |
Cabergoline | Cabergoline The metabolism of Famciclovir can be decreased when combined with Cabergoline. |
Naloxone Injection | Naloxone Injection The metabolism of Famciclovir can be decreased when combined with Naloxone. |
Enzalutamide | Enzalutamide The metabolism of Famciclovir can be increased when combined with Enzalutamide. |
Regorafenib | Regorafenib The metabolism of Famciclovir can be decreased when combined with Regorafenib. |
Bosutinib | Bosutinib The metabolism of Famciclovir can be decreased when combined with Bosutinib. |
Corticotropin, Repository Injection | Corticotropin, Repository Injection The metabolism of Famciclovir can be increased when combined with Corticotropin. |
Ponatinib | Ponatinib The metabolism of Ponatinib can be decreased when combined with Famciclovir. |
Pomalidomide | Pomalidomide The metabolism of Pomalidomide can be decreased when combined with Famciclovir. |
Ado-trastuzumab Emtansine Injection | Ado-trastuzumab Emtansine Injection The metabolism of Famciclovir can be decreased when combined with Trastuzumab emtansine. |
Dabrafenib | Dabrafenib The metabolism of Famciclovir can be decreased when combined with Dabrafenib. |
Trametinib | Trametinib The metabolism of Famciclovir can be increased when combined with Trametinib. |
Perampanel | Perampanel The metabolism of Famciclovir can be increased when combined with Perampanel. |
Lomitapide | Lomitapide The metabolism of Famciclovir can be decreased when combined with Lomitapide. |
Simeprevir | Simeprevir The metabolism of Famciclovir can be decreased when combined with Simeprevir. |
Apremilast | Apremilast The metabolism of Famciclovir can be increased when combined with Apremilast. |
Ceritinib | Ceritinib The metabolism of Ceritinib can be decreased when combined with Famciclovir. |
Siltuximab Injection | Siltuximab Injection The metabolism of Famciclovir can be increased when combined with Siltuximab. |
Eslicarbazepine | Eslicarbazepine The metabolism of Famciclovir can be increased when combined with Eslicarbazepine. |
Idelalisib | Idelalisib The metabolism of Idelalisib can be decreased when combined with Famciclovir. |
Testosterone Injection | Testosterone Injection The metabolism of Famciclovir can be increased when combined with Testosterone. |
Oritavancin Injection | Oritavancin Injection The metabolism of Famciclovir can be increased when combined with Oritavancin. |
Vorapaxar | Vorapaxar The metabolism of Vorapaxar can be decreased when combined with Famciclovir. |
Suvorexant | Suvorexant The metabolism of Suvorexant can be decreased when combined with Famciclovir. |
Olaparib | Olaparib The metabolism of Olaparib can be decreased when combined with Famciclovir. |
Tasimelteon | Tasimelteon The metabolism of Tasimelteon can be decreased when combined with Famciclovir. |
Lanreotide Injection | Lanreotide Injection The metabolism of Famciclovir can be decreased when combined with Lanreotide. |
Nintedanib | Nintedanib The metabolism of Nintedanib can be decreased when combined with Famciclovir. |
Secukinumab Injection | Secukinumab Injection The metabolism of Famciclovir can be increased when combined with Secukinumab. |
Palbociclib | Palbociclib The metabolism of Palbociclib can be decreased when combined with Famciclovir. |
Lenvatinib | Lenvatinib The metabolism of Famciclovir can be increased when combined with Lenvatinib. |
Panobinostat | Panobinostat The metabolism of Panobinostat can be decreased when combined with Famciclovir. |
Haloperidol Injection | Haloperidol Injection The serum concentration of Famciclovir can be increased when it is combined with Haloperidol. |
Isavuconazonium Injection | Isavuconazonium Injection The metabolism of Famciclovir can be increased when combined with Isavuconazonium. |
Sonidegib | Sonidegib The metabolism of Sonidegib can be decreased when combined with Famciclovir. |
Prednisolone | Prednisolone The metabolism of Famciclovir can be increased when combined with Prednisolone. |
Ziprasidone Injection | Ziprasidone Injection The metabolism of Famciclovir can be decreased when combined with Ziprasidone. |
Cobimetinib | Cobimetinib The metabolism of Cobimetinib can be decreased when combined with Famciclovir. |
Trabectedin Injection | Trabectedin Injection The metabolism of Trabectedin can be decreased when combined with Famciclovir. |
Osimertinib | Osimertinib The metabolism of Famciclovir can be decreased when combined with Osimertinib. |
Alectinib | Alectinib The metabolism of Alectinib can be decreased when combined with Famciclovir. |
Ixazomib | Ixazomib The metabolism of Ixazomib can be decreased when combined with Famciclovir. |
Rifapentine | Rifapentine The metabolism of Famciclovir can be increased when combined with Rifapentine. |
Lesinurad | Lesinurad The metabolism of Famciclovir can be increased when combined with Lesinurad. |
Amphotericin B Liposomal Injection | Amphotericin B Liposomal Injection The metabolism of Famciclovir can be decreased when combined with Amphotericin B. |
Dexamethasone Injection | Dexamethasone Injection The metabolism of Famciclovir can be increased when combined with Dexamethasone. |
Venetoclax | Venetoclax The metabolism of Famciclovir can be decreased when combined with Venetoclax. |
Cobicistat | Cobicistat The metabolism of Famciclovir can be decreased when combined with Cobicistat. |
Rucaparib | Rucaparib The metabolism of Rucaparib can be decreased when combined with Famciclovir. |
Ribociclib | Ribociclib The metabolism of Famciclovir can be decreased when combined with Ribociclib. |
Brigatinib | Brigatinib The metabolism of Famciclovir can be decreased when combined with Brigatinib. |
Deflazacort | Deflazacort The metabolism of Famciclovir can be increased when combined with Deflazacort. |
Sarilumab Injection | Sarilumab Injection The metabolism of Famciclovir can be increased when combined with Sarilumab. |
Midostaurin | Midostaurin The metabolism of Famciclovir can be increased when combined with Midostaurin. |
Neratinib | Neratinib The metabolism of Neratinib can be decreased when combined with Famciclovir. |
Enasidenib | Enasidenib The metabolism of Famciclovir can be decreased when combined with Enasidenib. |
Aprepitant/Fosaprepitant Injection | Aprepitant/Fosaprepitant Injection The metabolism of Famciclovir can be increased when combined with Fosaprepitant. |
Copanlisib Injection | Copanlisib Injection The metabolism of Copanlisib can be decreased when combined with Famciclovir. |
Abemaciclib | Abemaciclib The metabolism of Abemaciclib can be decreased when combined with Famciclovir. |
Acalabrutinib | Acalabrutinib The metabolism of Famciclovir can be decreased when combined with Acalabrutinib. |
Letermovir | Letermovir The metabolism of Famciclovir can be decreased when combined with Letermovir. |
Buprenorphine Injection | Buprenorphine Injection The metabolism of Buprenorphine can be decreased when combined with Famciclovir. |
Apalutamide | Apalutamide The metabolism of Famciclovir can be increased when combined with Apalutamide. |
Fostamatinib | Fostamatinib The metabolism of Famciclovir can be decreased when combined with Fostamatinib. |
Baricitinib | Baricitinib The metabolism of Baricitinib can be decreased when combined with Famciclovir. |
Ivosidenib | Ivosidenib The metabolism of Famciclovir can be decreased when combined with Ivosidenib. |
Dacomitinib | Dacomitinib The metabolism of Dacomitinib can be decreased when combined with Famciclovir. |
Duvelisib | Duvelisib The metabolism of Duvelisib can be decreased when combined with Famciclovir. |
Stiripentol | Stiripentol The metabolism of Famciclovir can be decreased when combined with Stiripentol. |
Gilteritinib | Gilteritinib The metabolism of Gilteritinib can be decreased when combined with Famciclovir. |
Paclitaxel (with albumin) Injection | Paclitaxel (with albumin) Injection The metabolism of Paclitaxel can be decreased when combined with Famciclovir. |
Rifamycin | Rifamycin The metabolism of Famciclovir can be increased when combined with Rifamycin. |
Prucalopride | Prucalopride The metabolism of Prucalopride can be decreased when combined with Famciclovir. |
Emapalumab-lzsg Injection | Emapalumab-lzsg Injection The metabolism of Famciclovir can be increased when combined with Emapalumab. |
Siponimod | Siponimod The metabolism of Siponimod can be decreased when combined with Famciclovir. |
Erdafitinib | Erdafitinib The metabolism of Erdafitinib can be decreased when combined with Famciclovir. |
Alpelisib | Alpelisib The metabolism of Famciclovir can be decreased when combined with Alpelisib. |
Triclabendazole | Triclabendazole The metabolism of Famciclovir can be decreased when combined with Triclabendazole. |
Entrectinib | Entrectinib The metabolism of Entrectinib can be decreased when combined with Famciclovir. |
Pexidartinib | Pexidartinib The metabolism of Pexidartinib can be decreased when combined with Famciclovir. |
Pitolisant | Pitolisant The serum concentration of Famciclovir can be decreased when it is combined with Pitolisant. |
Lefamulin | Lefamulin The metabolism of Lefamulin can be decreased when combined with Famciclovir. |
Phenytoin Injection | Phenytoin Injection The metabolism of Famciclovir can be increased when combined with Phenytoin. |
Fosphenytoin Injection | Fosphenytoin Injection The metabolism of Famciclovir can be increased when combined with Fosphenytoin. |
Zanubrutinib | Zanubrutinib The metabolism of Zanubrutinib can be decreased when combined with Famciclovir. |
Tazemetostat | Tazemetostat The metabolism of Tazemetostat can be decreased when combined with Famciclovir. |
Cenobamate | Cenobamate The serum concentration of Famciclovir can be decreased when it is combined with Cenobamate. |
Tucatinib | Tucatinib The metabolism of Tucatinib can be decreased when combined with Famciclovir. |
Octreotide | Octreotide The metabolism of Famciclovir can be decreased when combined with Octreotide. |
Pralsetinib | Pralsetinib The metabolism of Famciclovir can be increased when combined with Pralsetinib. |
Satralizumab-mwge Injection | Satralizumab-mwge Injection The serum concentration of Famciclovir can be decreased when it is combined with Satralizumab. |
Progestin-Only (drospirenone) Oral Contraceptives | Progestin-Only (drospirenone) Oral Contraceptives The metabolism of Drospirenone can be decreased when combined with Famciclovir. |
Vitamin E (Alpha-Tocopherol) | Vitamin E (Alpha-Tocopherol) The metabolism of Famciclovir can be increased when combined with Vitamin E. |
Theophylline | Theophylline The metabolism of Theophylline can be decreased when combined with Famciclovir. |
Phenobarbital | Phenobarbital The metabolism of Famciclovir can be increased when combined with Phenobarbital. |
Methotrexate Injection | Methotrexate Injection The metabolism of Methotrexate can be decreased when combined with Famciclovir. |
Primidone | Primidone The metabolism of Famciclovir can be increased when combined with Primidone. |
Chlorpromazine | Chlorpromazine The metabolism of Chlorpromazine can be increased when combined with Famciclovir. |
Diazepam | Diazepam The metabolism of Famciclovir can be decreased when combined with Diazepam. |
Lorazepam | Lorazepam The metabolism of Famciclovir can be decreased when combined with Lorazepam. |
Bromocriptine | Bromocriptine The metabolism of Famciclovir can be decreased when combined with Bromocriptine. |
Tranylcypromine | Tranylcypromine The metabolism of Famciclovir can be decreased when combined with Tranylcypromine. |
Phenelzine | Phenelzine The metabolism of Famciclovir can be decreased when combined with Phenelzine. |
Tetracycline | Tetracycline The metabolism of Famciclovir can be decreased when combined with Tetracycline. |
Prochlorperazine | Prochlorperazine The metabolism of Prochlorperazine can be decreased when combined with Famciclovir. |
Methadone | Methadone The metabolism of Famciclovir can be decreased when combined with Methadone. |
Oxybutynin | Oxybutynin The metabolism of Famciclovir can be decreased when combined with Oxybutynin. |
Orphenadrine | Orphenadrine The metabolism of Orphenadrine can be decreased when combined with Famciclovir. |
Phentermine | Phentermine The metabolism of Famciclovir can be decreased when combined with Phentermine. |
Hydrocortisone | Hydrocortisone The metabolism of Famciclovir can be increased when combined with Hydrocortisone. |
Doxorubicin | Doxorubicin The metabolism of Famciclovir can be decreased when combined with Doxorubicin. |
Carbamazepine | Carbamazepine The metabolism of Carbamazepine can be increased when combined with Famciclovir. |
Clonidine | Clonidine The metabolism of Clonidine can be decreased when combined with Famciclovir. |
Hydralazine | Hydralazine The metabolism of Famciclovir can be decreased when combined with Hydralazine. |
Cimetidine | Cimetidine The metabolism of Famciclovir can be decreased when combined with Cimetidine. |
Warfarin | Warfarin The metabolism of Warfarin can be decreased when combined with Famciclovir. |
Loperamide | Loperamide The metabolism of Famciclovir can be decreased when combined with Loperamide. |
Daunorubicin | Daunorubicin The metabolism of Famciclovir can be decreased when combined with Daunorubicin. |
Griseofulvin | Griseofulvin The metabolism of Famciclovir can be increased when combined with Griseofulvin. |
Quinine | Quinine The metabolism of Famciclovir can be increased when combined with Quinine. |
Calcitriol | Calcitriol The metabolism of Famciclovir can be increased when combined with Calcitriol. |
Sulfinpyrazone | Sulfinpyrazone The metabolism of Famciclovir can be increased when combined with Sulfinpyrazone. |
Secobarbital | Secobarbital The metabolism of Famciclovir can be increased when combined with Secobarbital. |
Desipramine | Desipramine The metabolism of Famciclovir can be decreased when combined with Desipramine. |
Probenecid | Probenecid The metabolism of Famciclovir can be increased when combined with Probenecid. |
Quinidine | Quinidine The metabolism of Quinidine can be decreased when combined with Famciclovir. |
Isoniazid | Isoniazid The metabolism of Famciclovir can be decreased when combined with Isoniazid. |
Rifampin | Rifampin The metabolism of Rifampicin can be increased when combined with Famciclovir. |
Valproic Acid | Valproic Acid The metabolism of Famciclovir can be decreased when combined with Valproic acid. |
Tamoxifen | Tamoxifen The metabolism of Famciclovir can be decreased when combined with Tamoxifen. |
Methimazole | Methimazole The metabolism of Famciclovir can be decreased when combined with Methimazole. |
Niacin | Niacin The metabolism of Famciclovir can be decreased when combined with Niacin. |
Danazol | Danazol The metabolism of Famciclovir can be decreased when combined with Danazol. |
Nortriptyline | Nortriptyline The metabolism of Nortriptyline can be decreased when combined with Famciclovir. |
Amphotericin B Injection | Amphotericin B Injection The metabolism of Famciclovir can be decreased when combined with Amphotericin B. |
Colchicine | Colchicine The metabolism of Famciclovir can be increased when combined with Colchicine. |
Cephalexin | Cephalexin The metabolism of Cephalexin can be decreased when combined with Famciclovir. |
Acetazolamide | Acetazolamide The metabolism of Famciclovir can be decreased when combined with Acetazolamide. |
Bacillus Calmette-Guerin (BCG) Vaccine | Bacillus Calmette-Guerin (BCG) Vaccine The therapeutic efficacy of Bacillus calmette-guerin substrain tice live antigen can be decreased when used in combination with Famciclovir. |
Ketoconazole | Ketoconazole The metabolism of Famciclovir can be decreased when combined with Ketoconazole. |
Thiotepa Injection | Thiotepa Injection The metabolism of Thiotepa can be decreased when combined with Famciclovir. |
Vincristine Injection | Vincristine Injection The metabolism of Vincristine can be decreased when combined with Famciclovir. |
Vinblastine | Vinblastine The metabolism of Famciclovir can be decreased when combined with Vinblastine. |
Metoprolol | Metoprolol The metabolism of Famciclovir can be decreased when combined with Metoprolol. |
Diltiazem | Diltiazem The metabolism of Famciclovir can be decreased when combined with Diltiazem. |
Nifedipine | Nifedipine The metabolism of Famciclovir can be increased when combined with Nifedipine. |
Verapamil | Verapamil The metabolism of Famciclovir can be decreased when combined with Verapamil. |
Etoposide | Etoposide The metabolism of Famciclovir can be decreased when combined with Etoposide. |
Glyburide | Glyburide The metabolism of Glyburide can be decreased when combined with Famciclovir. |
Dicloxacillin | Dicloxacillin The metabolism of Famciclovir can be increased when combined with Dicloxacillin. |
Nafcillin Injection | Nafcillin Injection The metabolism of Famciclovir can be increased when combined with Nafcillin. |
Pimozide | Pimozide The metabolism of Pimozide can be decreased when combined with Famciclovir. |
Amiodarone | Amiodarone The metabolism of Amiodarone can be decreased when combined with Famciclovir. |
Lovastatin | Lovastatin The metabolism of Famciclovir can be decreased when combined with Lovastatin. |
Ciprofloxacin | Ciprofloxacin The metabolism of Famciclovir can be decreased when combined with Ciprofloxacin. |
Clozapine | Clozapine The metabolism of Famciclovir can be decreased when combined with Clozapine. |
Clarithromycin | Clarithromycin The metabolism of Famciclovir can be decreased when combined with Clarithromycin. |
Felodipine | Felodipine The metabolism of Famciclovir can be decreased when combined with Felodipine. |
Teniposide Injection | Teniposide Injection The metabolism of Famciclovir can be decreased when combined with Teniposide. |
Itraconazole | Itraconazole The metabolism of Famciclovir can be decreased when combined with Itraconazole. |
Rifabutin | Rifabutin The metabolism of Famciclovir can be increased when combined with Rifabutin. |
Doxazosin | Doxazosin The metabolism of Doxazosin can be decreased when combined with Famciclovir. |
Isradipine | Isradipine The metabolism of Famciclovir can be decreased when combined with Isradipine. |
Omeprazole | Omeprazole The metabolism of Famciclovir can be increased when combined with Omeprazole. |
Cisapride | Cisapride The metabolism of Cisapride can be decreased when combined with Famciclovir. |
Fluvastatin | Fluvastatin The metabolism of Famciclovir can be decreased when combined with Fluvastatin. |
Fluvoxamine | Fluvoxamine The metabolism of Famciclovir can be decreased when combined with Fluvoxamine. |
Nefazodone | Nefazodone The metabolism of Famciclovir can be decreased when combined with Nefazodone. |
Losartan | Losartan The metabolism of Famciclovir can be decreased when combined with Losartan. |
Vinorelbine Injection | Vinorelbine Injection The metabolism of Vinorelbine can be decreased when combined with Famciclovir. |
Lansoprazole | Lansoprazole The metabolism of Famciclovir can be increased when combined with Lansoprazole. |
Ifosfamide Injection | Ifosfamide Injection The metabolism of Famciclovir can be decreased when combined with Ifosfamide. |
Nicardipine | Nicardipine The metabolism of Famciclovir can be decreased when combined with Nicardipine. |
Ticlopidine | Ticlopidine The metabolism of Famciclovir can be decreased when combined with Ticlopidine. |
Saquinavir | Saquinavir The metabolism of Saquinavir can be decreased when combined with Famciclovir. |
Ritonavir | Ritonavir The serum concentration of Famciclovir can be increased when it is combined with Ritonavir. |
Docetaxel Injection | Docetaxel Injection The metabolism of Famciclovir can be decreased when combined with Docetaxel. |
Clomipramine | Clomipramine The metabolism of Clomipramine can be decreased when combined with Famciclovir. |
Zafirlukast | Zafirlukast The metabolism of Famciclovir can be decreased when combined with Zafirlukast. |
Mirtazapine | Mirtazapine The metabolism of Famciclovir can be decreased when combined with Mirtazapine. |
Topiramate | Topiramate The metabolism of Famciclovir can be increased when combined with Topiramate. |
Azithromycin | Azithromycin The metabolism of Famciclovir can be decreased when combined with Azithromycin. |
Bicalutamide | Bicalutamide The metabolism of Bicalutamide can be decreased when combined with Famciclovir. |
Raloxifene | Raloxifene The metabolism of Famciclovir can be decreased when combined with Raloxifene. |
Irbesartan | Irbesartan The metabolism of Famciclovir can be decreased when combined with Irbesartan. |
Paroxetine | Paroxetine The metabolism of Famciclovir can be decreased when combined with Paroxetine. |
Citalopram | Citalopram The metabolism of Famciclovir can be decreased when combined with Citalopram. |
Efavirenz | Efavirenz The metabolism of Famciclovir can be decreased when combined with Efavirenz. |
Rabeprazole | Rabeprazole The metabolism of Famciclovir can be decreased when combined with Rabeprazole. |
Terbinafine | Terbinafine The metabolism of Famciclovir can be increased when combined with Terbinafine. |
Content provided by: AHFS® Patient Medication Information™. © Copyright, 2021. The American Society of Health-System Pharmacists