Comparing Famciclovir vs Valacyclovir
| Famciclovir | Valacyclovir |
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| Famciclovir | Valacyclovir |
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Prescription only
Prescribed for Cold Sores, Herpes Zoster, Herpes Simplex - Suppression, Herpes Simplex - Mucocutaneous/Immunocompetent Host, Herpes Simplex - Mucocutaneous/Immunocompromised Host. Famciclovir may... View more |
Prescription only
Valacyclovir is used to treat cold sores, genital herpes, herpes zoster, and chickenpox. It is an antiviral prodrug that is rapidly converted into acyclovir in the body. Valacyclovir should be... View more |
Related suggestions Cold Sores (Herpes Simplex Labialis)
Herpes Zoster
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| More about Famciclovir | More about Valacyclovir | ||||||||||||||||
| Ratings & Reviews | |||||||||||||||||
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Famciclovir has an average rating of 7.8 out of 10 from a total of 70 ratings on Drugs.com. 71% of reviewers reported a positive effect, while 11% reported a negative effect. |
Valacyclovir has an average rating of 8.3 out of 10 from a total of 495 ratings on Drugs.com. 79% of reviewers reported a positive effect, while 12% reported a negative effect. |
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| Side Effects Experienced by Users Side effects are reported in Drugs.com user reviews and not clinically verified. | |||||||||||||||||
View all Famciclovir side effects |
View all Valacyclovir side effects |
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| Drug Class | |||||||||||||||||
| Generic Availability | |||||||||||||||||
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Lower cost generic |
Lower cost generic |
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| Pricing and Coupons * Prices are without insurance | |||||||||||||||||
View all Famciclovir prices |
View all Valacyclovir prices |
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| Dosage Forms | |||||||||||||||||
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| Brand Names | |||||||||||||||||
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N/A |
Valtrex | ||||||||||||||||
| Half Life Drug half-life is the time required for plasma concentration to reduce to half its original value. | |||||||||||||||||
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2.3 hours |
3.1 hours |
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| CSA Schedule 1 View glossary of CSA terms | |||||||||||||||||
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Not a controlled drug
Is not subject to the Controlled Substances Act. |
Not a controlled drug
Is not subject to the Controlled Substances Act. |
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| Pregnancy Category | |||||||||||||||||
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Category B
No proven risk in humans
See the full pregnancy warnings document. |
Category B
No proven risk in humans
See the full pregnancy warnings document. |
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| Drug Interactions | |||||||||||||||||
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A total of 9 drugs are known to interact with Famciclovir:
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A total of 91 drugs are known to interact with Valacyclovir:
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| Alcohol/Food/Lifestyle Interactions | |||||||||||||||||
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No known alcohol/food interactions. This does not necessarily mean no interactions exist. Always consult your healthcare provider. |
No known alcohol/food interactions. This does not necessarily mean no interactions exist. Always consult your healthcare provider. |
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| Disease Interactions | |||||||||||||||||
| First Approval Date | |||||||||||||||||
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June 29, 1994 |
June 23, 1995 |
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| WADA Class View classifications | |||||||||||||||||
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N/A |
N/A |
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| More Information | |||||||||||||||||
| Patient Resources | |||||||||||||||||
| Professional Resources | |||||||||||||||||
| Related Treatment Guide | |||||||||||||||||
1 The Controlled Substances Act (CSA) schedule information displayed applies to substances regulated under federal law. There may be variations in CSA schedules between individual states.
Further information
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.