Voriconazole
About Voriconazole
Voriconazole is an antifungal medication used to treat serious, deep-seated infections caused by yeast or other fungi. It is commonly prescribed for severe infections that start in the lungs or spread throughout the body. This medication helps clear the infection by stopping the growth of the fungi responsible for the illness.
To ensure the medication works effectively, you must take it consistently at the same times every day as directed by your doctor. It should be taken on an empty stomach, either one hour before or one hour after a meal, because food can prevent your body from absorbing it properly. Protecting your skin from direct sunlight is also a key lifestyle adjustment while taking this medicine, as it can make you highly sensitive to sunburn.
While taking Voriconazole, you may experience common side effects such as temporary vision changes, mild skin rashes, or a slightly upset stomach. However, you must contact your doctor immediately if you develop serious side effects, such as a severe skin rash with blistering, dark urine, or yellowing of your skin and eyes, which may point to liver damage.
Before starting this treatment, talk to your doctor if you have a history of liver disease, kidney problems, or an irregular heart rhythm. Do not take this if you are currently taking certain other medications that can cause dangerous heart complications when combined, or if you have had a severe allergic reaction to similar antifungal medicines in the past.
This medicine can interact with many prescription drugs, alcohol, and smoking because of how it is processed by the liver, which can lead to increased side effects or reduced effectiveness. If you are pregnant, breastfeeding, or are an elderly individual, you must consult your healthcare provider to discuss the risks and benefits before starting therapy.
Uses of Voriconazole
Medicinal Benefits
Voriconazole helps treat fungal infections by stopping the growth and spread of disease-causing fungi. By clearing the underlying infection, it relieves symptoms, supports recovery, and helps prevent serious complications.
- Helps Treat Fungal Infections Effectively: By inhibiting the growth of fungi, Voriconazole helps eliminate the infection, allowing your body's natural defences to recover and restore your health.
- Relieves Infection-Related Symptoms: As the fungal infection clears, Voriconazole helps reduce symptoms such as pain, burning, difficulty swallowing, fever, and discomfort, improving your ability to eat, drink, and carry out daily activities.
- Helps Prevent the Spread of Serious Infections: By controlling fungal growth, Voriconazole helps prevent the infection from spreading to other parts of the body, supporting faster recovery and reducing the risk of complications, especially in severe or invasive fungal infections.
Directions for Use
- Voriconazole can be taken at least one hour before, or one hour after a meal.
- Generally, Voriconazole is taken twice every day for the best results or as advised by a doctor.
- Swallow it as a whole with a glass of water.
- Do not crush, chew, or break it.
Storage
Side Effects of Voriconazole
Common Side Effects (Usually mild):
- Temporary changes in your vision, such as blurriness, seeing colors differently, or sensitivity to light
- Nausea, vomiting, or stomach upset
- Mild skin rash or itching
- Headache or dizziness
Serious Side Effects (Consult a doctor right away):
- Signs of liver damage, such as yellowing of your skin or eyes, dark-colored urine, pale stools, or severe pain in your upper stomach
- Severe sunburn, skin peeling, or blistering after spending time in the sun
- A fast, pounding, or irregular heartbeat
- Signs of a severe allergic reaction, including difficulty breathing, hives, or swelling of your face, lips, tongue, or throat
Medicines Containing this Salt
View AllDrug Warnings
- Do not drive at night: This medication can cause temporary visual disturbances, such as blurriness or sensitivity to light, which can make nighttime driving or operating heavy machinery dangerous.
- Use reliable birth control: This medicine can cause serious harm to an unborn baby. Women of childbearing age must use highly effective birth control throughout the treatment.
- Keep up with liver tests: Your doctor will likely order routine blood tests to check your liver function while you are on this medicine. Make sure you do not miss these medical appointments.
- Check your skin daily: Inspect your skin regularly for any new rashes, peeling, or blisters. Contact your doctor immediately if you notice any unusual skin changes, as these can progress quickly.
Drug Interactions
- Blood thinners (e.g., warfarin): Taking Voriconazole with blood thinners may increase the risk of bleeding. Your doctor may recommend closer monitoring of your blood clotting tests and adjust your treatment if necessary.
- Certain statins and anti-seizure medicines (e.g., carbamazepine): Some cholesterol-lowering statins and anti-seizure medicines may either increase the risk of side effects or reduce the effectiveness of Voriconazole. Inform your doctor about all medicines you are taking before starting treatment.
- Cisapride, pimozide, quinidine, and rifampin: Do not take Voriconazole with these medicines. Cisapride, pimozide, and quinidine may increase the risk of life-threatening heart rhythm disturbances, while rifampin can significantly reduce the effectiveness of Voriconazole.
Drug-Drug Interactions Checker List:
Safety Advice
Alcohol
unsafeIt is advisable to avoid or limit the intake of alcohol while you use Voriconazole.
Pregnancy
unsafeIt is unsafe to take Voriconazole during pregnancy since it may show harmful effects on the fetus as it is a pregnancy category D drug. There are chances of spontaneous abortions in women treated with Voriconazole in the first trimester. Consult your doctor for further advice.
Breast Feeding
consult your doctorIf you are breastfeeding, please consult your doctor before taking Voriconazole. Your doctor may prescribe this medicine if the benefits outweigh the risks.
Driving
unsafeDo not drive or operate machines if you experience dizziness or sensitivity to sunlight after taking Voriconazole.
Liver
consult your doctorInform your doctor if you have liver problems before taking Voriconazole. Your doctor may adjust the dose if necessary based on your condition.
Kidney
consult your doctorInform your doctor if you have kidney problems before taking Voriconazole. Your doctor may adjust the dose if necessary based on your condition.
Children
consult your doctorPlease consult your doctor. Your doctor will prescribe Voriconazole based on your child's age, condition, and body weight.
Habit Forming
Diet & Lifestyle Advise
- Protect your skin: This medication increases your sensitivity to sunlight. Wear protective clothing, wide-brimmed hats, sunglasses, and a broad-spectrum, high-SPF sunscreen whenever you go outdoors. Avoid tanning beds entirely.
- Coordinate doses with meals: Since this medication must be taken on an empty stomach, plan your daily meal times carefully. Avoid eating any food for at least one hour before taking your tablet, and wait at least one hour after taking it before eating again.
- Avoid alcohol: Do not consume alcohol during your treatment. Both alcohol and this medicine can strain your liver, and combining them increases the risk of serious liver damage.
- Stay well-hydrated: Drink plenty of water throughout the day to help your kidneys flush out waste products and keep your body functioning optimally.
Special Advise
- Liver function tests should be monitored regularly while taking Voriconazole.
- Wear a strong SPF while going out in the sun.
Patients Concern
Disease/Condition Glossary
Fungal infection: It occurs when a fungus enters, infects and multiplies in the body. Fungi can live in water, soil, air and plants. Fungi affect any part of the body, including the mouth, throat, oesophagus, lungs, bladder, genital area and blood. Mild fungal skin infections are common and can cause rashes. Fungal infections affecting body organs like the lungs can cause flu or tuberculosis. Some fungal diseases, like cryptococcal meningitis and blood infections, can be fatal. A few common fungal infections are yeast infections that affect the genital area, oesophagus and urinary tract caused by Candida.
Invasive aspergillosis: A fungal infection that starts in the lungs and spreads throughout the bloodstream to other organs.
Esophageal candidiasis: A yeast (a type of fungus) infection that may cause white patching in the mouth and throat.
Candidemia: A fungal infection in the blood.
FAQs
No, you should take Voriconazole on an empty stomach, either 1 hour before or 1 hour after a meal. Food can significantly decrease how much of the medicine is absorbed into your body. Talk to your doctor or pharmacist if you have trouble scheduling your doses.
Yes, temporary vision changes such as blurriness, sensitivity to light, or altered colour vision are common side effects, especially in the first few weeks of treatment. These changes usually go away after you stop taking the medicine. If you experience severe or persistent vision changes, talk to your doctor.
This medicine makes your skin much more sensitive to ultraviolet (UV) light, which can cause severe sunburns, rashes, or blisters even with short exposure. You should wear protective clothing, use high-SPF sunscreen, and limit your time in direct sunlight. If you develop a skin reaction, talk to your doctor.
It is highly recommended to avoid alcohol while taking this medicine. Both alcohol and Voriconazole are processed by the liver, and combining them can increase your risk of liver damage. If you have concerns about this, talk to your doctor.
If you miss a dose, take it as soon as you remember. However, if it is almost time for your next scheduled dose, skip the missed dose and continue with your regular schedule. Do not take a double dose to make up for a missed one. If you are unsure, talk to your doctor or pharmacist.
No, this medicine is generally not recommended during pregnancy because it can cause harm to an unborn baby. You should use effective birth control while taking this medicine. If you are pregnant, planning to become pregnant, or breastfeeding, talk to your doctor.
Yes, Voriconazole has many potential drug interactions that can change how your other medications work or increase the risk of serious side effects. Always provide your healthcare provider with a complete list of all prescription drugs, over-the-counter medicines, vitamins, and herbal supplements you take. Talk to your doctor or pharmacist before starting any new medicine.

