Comparing Acyclovir vs Famciclovir
Acyclovir | Famciclovir |
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Acyclovir | Famciclovir |
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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 |
Prescription only
Prescribed for Herpes Zoster, Cold Sores, Herpes Simplex - Suppression, Herpes Simplex - Mucocutaneous/Immunocompetent Host, Herpes Simplex - Mucocutaneous/Immunocompromised Host. Famciclovir may... View more |
Related suggestions Cold Sores (Herpes Simplex Labialis)
Herpes Simplex, Suppression
Herpes Zoster
Herpes Simplex, Mucocutaneous/Immunocompetent Host
Popular comparisons
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More about Acyclovir | More about Famciclovir | ||||||||||||||||
Ratings & Reviews | |||||||||||||||||
Acyclovir has an average rating of 8.2 out of 10 from a total of 188 ratings on Drugs.com. 77% of reviewers reported a positive effect, while 11% reported a negative effect. |
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. |
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Side Effects Experienced by Users Side effects are reported in Drugs.com user reviews and not clinically verified. | |||||||||||||||||
View all Acyclovir side effects |
View all Famciclovir side effects |
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Drug Class | |||||||||||||||||
Generic Availability | |||||||||||||||||
Lower cost generic |
Lower cost generic |
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Pricing and Coupons * Prices are without insurance | |||||||||||||||||
View all Acyclovir prices |
View all Famciclovir prices |
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Dosage Forms | |||||||||||||||||
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Brand Names | |||||||||||||||||
Sitavig, Zovirax |
N/A |
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Half Life Drug half-life is the time required for plasma concentration to reduce to half its original value. | |||||||||||||||||
4 hours |
2.3 hours |
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CSA Schedule 1 View glossary of CSA terms | |||||||||||||||||
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 | |||||||||||||||||
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 | |||||||||||||||||
A total of 69 drugs are known to interact with Acyclovir:
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A total of 9 drugs are known to interact with Famciclovir:
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Alcohol/Food/Lifestyle Interactions | |||||||||||||||||
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 | |||||||||||||||||
January 25, 1985 |
June 29, 1994 |
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WADA Class View classifications | |||||||||||||||||
N/A |
N/A |
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More Information | |||||||||||||||||
Patient Resources | |||||||||||||||||
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.
See also:
Further information
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.