Drug reference
valacyclovir
For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.
Drug class
Anti Virals (Herpesvirus)
Mechanism of action
Converted to acyclovir by intestinal and hepatic metabolism, Competes with deoxyguanosine triphosphate for viral DNA polymerase to inhibit DNA synthesis and viral replication
Common side effects
- Nasopharyngitis
- Neutropenia
- Headache
- Nausea
- Elevated aspartate transaminase (AST)
- Elevated alanine transaminase (ALT)
Contraindications
- Hypersensitivity to valacyclovir or acyclovir
Related conditions
Frequently asked questions
What drug class is valacyclovir?
valacyclovir belongs to: Anti Virals.
How does valacyclovir work?
Converted to acyclovir by intestinal and hepatic metabolism, Competes with deoxyguanosine triphosphate for viral DNA polymerase to inhibit DNA synthesis and viral replication
What are the common side effects of valacyclovir?
Nasopharyngitis, Neutropenia, Headache, Nausea, Elevated aspartate transaminase (AST), Elevated alanine transaminase (ALT)
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