TabletsClinical Overview
Valacyclovir is the L-valyl ester prodrug of aciclovir, designed for superior oral bioavailability (3- to 5-fold higher than oral aciclovir). Following rapid hepatic first-pass hydrolysis into aciclovir, it selectively inhibits viral DNA polymerase, halting viral replication in Herpes simplex (HSV-1, HSV-2) and Varicella-zoster virus (VZV). Indicated for herpes zoster (shingles), episodic genital herpes flares, suppression of recurrent genital herpes, and herpes labialis.
Active Pharmaceutical Ingredients
Verified Clinical References
Usage Guidelines
Swallow whole with a full glass of water, with or without food. Ensure adequate daily water consumption. Begin therapy at the very earliest signs or symptoms of an outbreak (tingling, burning, or blisters) for maximal therapeutic response.
General Administration Advice: Adhere strictly to the prescribed dosage, frequency, and treatment course. For oral medications, swallow with sufficient water. Never stop antibiotics, psychiatric medications, or antihypertensives abruptly without clinical direction.
Possible Side Effects
Common: Headache, nausea, abdominal discomfort, dizziness, and mild fatigue. Rare/Severe: Thrombotic thrombocytopenic purpura/hemolytic uremic syndrome (TTP/HUS) in immunocompromised patients, acute renal failure, and central nervous system toxicity.
*Note: Individual physiological responses vary. While many patients experience few or no side effects, notify your treating physician if adverse reactions persist or if hypersensitivity (angioedema, skin rash, dyspnea) occurs.
Precautions & Warnings
Dosage adjustment required in patients with reduced kidney function. Maintain abundant daily hydration to prevent renal tubular precipitation. Report any unexplained bleeding, bruising, oliguria, or extreme fatigue to your doctor immediately.
Schedule H (Prescription Required)
This medication is scheduled under statutory drug regulatory frameworks (CDSCO / Drugs & Cosmetics Rules). Dispensing requires a valid medical prescription from a registered medical practitioner. Self-medication or unsupervised dosage adjustment carries significant clinical risks.
Medical Disclaimer: Statutory Clinical Disclaimer: The information provided is for educational and price-transparency purposes only and does not constitute medical advice, clinical diagnosis, or treatment recommendations. Always consult a registered medical practitioner or qualified pharmacist before initiating, modifying, or substituting any medication regimen.