Acyclovir API: Antiviral Uses, Dosage Forms, and Handling
Acyclovir is a nucleoside analogue antiviral used widely for herpes infections. Learn how the API is used in oral, topical, and injectable formulations.
Overview of Acyclovir API
Acyclovir is an antiviral medicine active mainly against herpes simplex virus (HSV) types 1 and 2 and varicella‑zoster virus (VZV). As an API it is used to manufacture tablets, capsules, oral suspensions, topical creams/ointments, and injectable preparations for hospital use.
Main Therapeutic Uses
- Treatment of genital and orolabial herpes infections
- Management of herpes zoster (shingles)
- Varicella (chickenpox) in high‑risk patients
- Prophylaxis of HSV infections in immunocompromised individuals
API and Formulation Considerations
Acyclovir is a poorly water‑soluble, crystalline powder. Control of particle size, polymorphic form, and residual solvents is essential to ensure consistent dissolution and bioavailability. It is often formulated with suitable excipients to enhance solubility and patient acceptability.
Safety and Handling
Finished Acyclovir products are generally well tolerated but can occasionally cause gastrointestinal upset, headache, or renal effects at high doses. At the API level, standard industrial hygiene practices (dust control, PPE, local exhaust) are recommended, along with storage in cool and dry conditions according to the CoA.
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Our team of pharmacists and medical writers share accurate, easy-to-understand medicine information for healthcare professionals and patients.
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