Famvir Alternatives Compared
| Famvir (famciclovir) | Valacyclovir | Acyclovir |
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| Famvir (famciclovir) | Valacyclovir | Acyclovir |
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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. Famvir may also be... 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 |
Prescription only
Acyclovir is an antiviral drug that treats infections caused by HSV-1, HSV-2, and varicella-zoster viruses such as chickenpox, genital herpes, and shingles. It is most effective when started within... View more |
Related suggestions Cold Sores (Herpes Simplex Labialis)
Herpes Simplex, Suppression
Herpes Zoster
Herpes Simplex, Mucocutaneous/Immunocompetent Host
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| More about Famvir (famciclovir) | More about Valacyclovir | More about Acyclovir | ||||||||||||||||
| Ratings & Reviews | ||||||||||||||||||
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Famvir has an average rating of 8.6 out of 10 from a total of 16 ratings on Drugs.com. 81% of reviewers reported a positive effect, while 0% 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. |
Acyclovir has an average rating of 8.2 out of 10 from a total of 189 ratings on Drugs.com. 77% of reviewers reported a positive effect, while 11% 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. | ||||||||||||||||||
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View all Famvir side effects |
View all Valacyclovir side effects |
View all Acyclovir 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 | ||||||||||||||||||
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We could not find an exact match for this medicine. Try searching the Price Guide directly. |
View all Valacyclovir prices |
View all Acyclovir prices |
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| Dosage Forms | ||||||||||||||||||
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| Brand Names | ||||||||||||||||||
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N/A |
Valtrex | Sitavig, Zovirax | ||||||||||||||||
| 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 |
4 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. |
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. |
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 Famvir:
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A total of 91 drugs are known to interact with Valacyclovir:
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A total of 67 drugs are known to interact with Acyclovir:
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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. |
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 |
January 25, 1985 |
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| WADA Class View classifications | ||||||||||||||||||
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N/A |
N/A |
N/A |
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| More Information | ||||||||||||||||||
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| Professional Resources | ||||||||||||||||||
| Related Treatment Guide | ||||||||||||||||||
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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.