Voriconazole: uses, side effects & brands

Written & medically reviewed by Dr. Sanjay Anbu, MBBS · Last reviewed 5 November 2026

Voriconazole treats serious mould and other invasive fungal infections. It belongs to the Antifungal (systemic, advanced) group. These treat serious internal fungal infections and some resistant skin/nail cases.

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Drug type — dosing is set by your doctor

Measure	Range
Drug class	Antifungal (systemic, advanced)
Type	Prescription
Dose	Individual — ask your doctor or pharmacist

What it is used for

Invasive aspergillosis (serious mould infection)
Serious Candida infections of the blood and organs
Other rare serious fungal infections
Preventing fungal infection in some high-risk patients

Common brand names

India: Vfend, Vorizol
Worldwide: Vfend

Common side effects

Temporary visual changes (blurred, bright or altered colour vision)
Skin sensitivity to sunlight
Nausea or diarrhoea
Abnormal liver tests

Before taking it — precautions

Avoid sunlight and use sun protection; long use raises skin cancer risk
It interacts with many medicines; tell the doctor everything you take
Liver tests and sometimes blood levels are checked

When to see a doctor urgently

Severe sunburn-like rash or blistering (urgent)
Yellow skin or eyes or dark urine
Fainting or a racing, irregular heartbeat (urgent)

Not a prescription — no dose shown. The right dose of voriconazole depends on age, weight, kidney/liver function and the condition, so MedDroid does not show a dose here. Always get your dose from a doctor or pharmacist and the leaflet inside the pack. General educational information only.

Frequently asked questions

Why is my vision strange after a dose?

Brief changes in vision are common and usually pass. Do not drive at night and report persistent changes.

Why must I avoid the sun?

Voriconazole makes skin very sensitive to sunlight, and long-term use raises the risk of skin cancer.

Why are blood levels checked?

Levels vary a lot between people, so checks help make sure it is effective and not toxic.

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Sources & further reading

Reviewed by Dr. Sanjay Anbu, MBBS. MedDroid is an AI medical assistant and can make mistakes. It provides general health information, not a diagnosis or medical advice — always consult a qualified clinician. In an emergency, contact your local emergency number immediately.