Comparing Acyclovir vs Valtrex
| Acyclovir | Valtrex (valacyclovir) |
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| Acyclovir | Valtrex (valacyclovir) |
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Prescription only
Acyclovir is an antiviral medication that is used to treat herpes simplex types 1 and 2 (HSV, cold sores and genital herpes), and varicella zoster virus (VZV, chickenpox or shingles). It is most... View more |
Prescription only
Prescribed for Cold Sores, Herpes Simplex - Mucocutaneous/Immunocompetent Host, Herpes Simplex - Suppression, Herpes Simplex - Mucocutaneous/Immunocompromised Host, Herpes Zoster, Ramsay Hunt... 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 Valtrex (valacyclovir) | ||||||||||||||||
| Ratings & Reviews | |||||||||||||||||
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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. |
Valtrex has an average rating of 8.6 out of 10 from a total of 303 ratings on Drugs.com. 82% of reviewers reported a positive effect, while 10% 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 Valtrex side effects |
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| Drug Class | |||||||||||||||||
| Generic Availability | |||||||||||||||||
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Lower cost generic |
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| Pricing and Coupons * Prices are without insurance | |||||||||||||||||
View all Acyclovir prices |
View all Valtrex 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. | |||||||||||||||||
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4 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 69 drugs are known to interact with Acyclovir:
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A total of 92 drugs are known to interact with Valtrex:
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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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January 25, 1985 |
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 | |||||||||||||||||
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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.