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👤 Adult👶 Paediatric

Valaciclovir

Clinically reviewed by MedNext Clinical Team. Last reviewed 1 January 2026. See our editorial policy and correction policy.

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

+ 2 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.

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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

Commonhallucinati
Uncommonhallucinati

Full side effect profile available in the MedNext app.

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

Brand Names

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

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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

Reviewer: MedNext Clinical Team

Related drugs

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Abacavir With Lamivudine And Zidovudine

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Abaloparatide

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Abatacept

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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.

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