MedNext AcademyMedNext
👤 Adult👶 Paediatric

Valaciclovir

10 known interactions
2 brand names

Indications

  • Post-exposure prophylaxis of varicella zoster infection
  • Herpes zoster infection, treatment
  • Herpes zoster infection, treatment in immunocompromised patients
  • Herpes simplex, treatment of first infective episode
  • Herpes simplex infections treatment of first episode in immunocompromised or HIV-positive patients

+ 7 more indications in the full monograph

Drug Interactions

Moderate interactions

10 drug interactions identified for Valaciclovir. Check the full interaction details, severity ratings, and clinical recommendations in the MedNext app.

Check Interactions in App

Safety Information

🤰Pregnancy guidance available
🤱Breastfeeding guidance available
🫘Renal impairment guidance
🫁Hepatic impairment guidance
⚠️Requires renal dose adjustment

Cautions

Elderly (risk of neurological reactions); maintain adequate hydration (especially with high doses)...

Side Effects

Common or very common Diarrhoea; dizziness; headache; nausea; photosensitivity reaction; skin reactions; vomiting Uncommon Abdominal discomfort; agitation; confusion; dyspnoea; haematuria; hallucinati...

Full safety information, contraindications, and dosing available in the MedNext app.

Brand Names

Valtrex(IN, PK, SA, AE, EG, ZA, NG)Valcivir(IN)
Mn

Get the Full Monograph

Complete dosing, interactions, contraindications, side effects, and more for Valaciclovir.

Download Free — 7-Day Trial

No credit card required

AES-256 EncryptedNo Patient Data

In the MedNext App

  • Complete dosing regimens
  • Full interaction details & severity
  • AI-powered drug search
  • All 2 brand names
  • Dosing calculators
  • CME/CPD tracking
  • 40 language support
  • Offline access

Source: MedNext Audited Proprietary Dataset

Last reviewed: 2026

Medical Disclaimer: This information is for educational purposes only and is not a substitute for professional medical advice. Always consult a qualified healthcare professional before making clinical decisions. Verify all drug information with current clinical guidelines.

Access all 2866 drugs in the MedNext app

Complete monographs, AI-powered search, interaction checker, dosing calculators, and CME tracking — in 40 languages.

Download MedNext — Free 7-Day Trial