This information from Lexicomp® explains what you need to know about this medication, including what it’s used for, how to take it, its side effects, and when to call your healthcare provider.
Vfend; Vfend IV
APO-Voriconazole; SANDOZ Voriconazole; TEVA-Voriconazole; Vfend
- It is used to treat fungal infections.
- If your child is allergic to this drug; any part of this drug; or any other drugs, foods, or substances. Tell the doctor about the allergy and what signs your child had.
- If your child has any of these health problems: Low calcium, magnesium, or potassium levels.
- If your child is taking any of these drugs: Astemizole, carbamazepine, cisapride, dihydroergotamine, efavirenz, ergonovine, ergotamine, everolimus, fluconazole, methylergonovine, phenobarbital or other drugs like it, pimozide, quinidine, rifabutin, rifampin, ritonavir, sirolimus, St John’s wort, or terfenadine.
- If your child has a rare hereditary problem of galactose intolerance, Lapp lactase deficiency, or glucose-galactose malabsorption.
This is not a list of all drugs or health problems that interact with this drug.
Tell the doctor and pharmacist about all of your child’s drugs (prescription or OTC, natural products, vitamins) and health problems. You must check to make sure that it is safe for your child to take this drug with all of his/her drugs and health problems. Do not start, stop, or change the dose of any drug your child takes without checking with the doctor.
- Tell all of your child’s health care providers that your child is taking this drug. This includes your child’s doctors, nurses, pharmacists, and dentists.
- Have your child avoid tasks or actions that call for alertness until you see how this drug affects your child. These are things like riding a bike, playing sports, or using items such as scissors, lawnmowers, electric scooters, toy cars, or motorized vehicles.
- If your child is old enough to drive, have your child avoid driving at night.
- Get your child an eye exam if he/she is on this drug for a long time. Talk with your child’s doctor.
- Have your child’s blood work checked often. Talk with your child’s doctor.
- Do not give to your child longer than you have been told. A second infection may happen.
- Your child may get sunburned more easily. Avoid lots of sun, sunlamps, and tanning beds. Use sunscreen and dress your child in clothing and eyewear that protects him/her from the sun.
- Bright lights may bother your child. Have your child wear sunglasses.
- An unsafe heartbeat that is not normal (long QT on ECG) has happened with this drug. Sudden deaths have rarely happened in people taking this drug. Talk with the doctor.
- Use with care in children. Talk with the doctor.
If your child is or may be sexually active:
- This drug may cause harm to an unborn baby. Females must use birth control while taking this drug. If your child gets pregnant, call your child’s doctor right away.
If your child is breast-feeding a baby:
- Tell the doctor if your child is breast-feeding a baby. You will need to talk about any risks to the baby.
WARNING/CAUTION: Even though it may be rare, some people may have very bad and sometimes deadly side effects when taking a drug. Tell your child’s doctor or get medical help right away if your child has any of the following signs or symptoms that may be related to a very bad side effect:
- Signs of an allergic reaction, like rash; hives; itching; red, swollen, blistered, or peeling skin with or without fever; wheezing; tightness in the chest or throat; trouble breathing, swallowing, or talking; unusual hoarseness; or swelling of the mouth, face, lips, tongue, or throat.
- Signs of a pancreas problem (pancreatitis) like very bad stomach pain, very bad back pain, or very bad upset stomach or throwing up.
- Signs of kidney problems like unable to pass urine, change in how much urine is passed, blood in the urine, or a big weight gain.
- Signs of lupus like a rash on the cheeks or other body parts, sunburn easy, muscle or joint pain, chest pain or shortness of breath, or swelling in the arms or legs.
- Signs of electrolyte problems like mood changes, confusion, muscle pain or weakness, a heartbeat that does not feel normal, seizures, not hungry, or very bad upset stomach or throwing up.
- Signs of high or low blood pressure like very bad headache or dizziness, passing out, or change in eyesight.
- Signs of high blood sugar like confusion, feeling sleepy, more thirst, more hungry, passing urine more often, flushing, fast breathing, or breath that smells like fruit.
- Fever or chills.
- Bone pain.
- Fast or abnormal heartbeat.
- Hallucinations (seeing or hearing things that are not there).
- Sweating a lot.
- Any unexplained bruising or bleeding.
- Change in eyesight.
- If bright lights bother your child’s eyes.
- Skin reaction to light.
- Certain types of skin cancer have happened in people who were bothered by sunlight while taking this drug for a long time. Call the doctor right away if your child has a change in color or size of a mole or any other skin change or growth.
- A very bad skin reaction (Stevens-Johnson syndrome/toxic epidermal necrolysis) may happen. It can cause very bad health problems that may not go away, and sometimes death. Get medical help right away if your child has signs like red, swollen, blistered, or peeling skin (with or without fever); red or irritated eyes; or sores in the mouth, throat, nose, or eyes.
- Liver problems have rarely happened with this drug. Sometimes, this has been deadly. Call your child’s doctor right away if your child has signs of liver problems like dark urine, feeling tired, not hungry, upset stomach or stomach pain, light-colored stools, throwing up, or yellow skin or eyes.
- Rarely, some people have had a reaction during the infusion of this drug. Tell the doctor right away about any flushing, fever, sweating, fast heartbeat, chest tightness, shortness of breath, faintness, upset stomach, itching, or rash during the infusion of this drug.
All drugs may cause side effects. However, many people have no side effects or only have minor side effects. Call your child’s doctor or get medical help if any of these side effects or any other side effects bother your child or do not go away:
- Constipation, diarrhea, stomach pain, upset stomach, or throwing up.
- Mouth irritation.
- Signs of a common cold.
These are not all of the side effects that may occur. If you have questions about side effects, call your child’s doctor. Call your child’s doctor for medical advice about side effects.
You may report side effects to your national health agency.
Give this drug as ordered by your child’s doctor. Read all information given to you. Follow all instructions closely.
All oral products:
- Give on an empty stomach. Give 1 hour before or 1 hour after meals.
- Keep giving this drug to your child as you have been told by your child’s doctor or other health care provider, even if your child feels well.
- Shake well before use.
- Measure liquid doses carefully. Use the measuring device that comes with this drug. If there is none, ask the pharmacist for a device to measure this drug.
- Do not mix with other liquids.
- It is given as an infusion into a vein over a period of time.
All oral products:
- Give a missed dose as soon as you think about it.
- If it is close to the time for your child’s next dose, skip the missed dose and go back to your child’s normal time.
- Do not give 2 doses at the same time or extra doses.
- Call your child’s doctor to find out what to do.
All oral products:
- Store at room temperature. Do not refrigerate or freeze.
- Keep lid tightly closed.
- Store in a dry place. Do not store in a bathroom.
- Throw away any part not used 2 weeks after this drug was mixed.
- If you need to store this drug at home, talk with your child’s doctor, nurse, or pharmacist about how to store it.
- Keep all drugs in a safe place. Keep all drugs out of the reach of children and pets.
- Throw away unused or expired drugs. Do not flush down a toilet or pour down a drain unless you are told to do so. Check with your pharmacist if you have questions about the best way to throw out drugs. There may be drug take-back programs in your area.
- If your child’s symptoms or health problems do not get better or if they become worse, call your child’s doctor.
- Do not share your child’s drug with others and do not give anyone else’s drug to your child.
- Some drugs may have another patient information leaflet. If you have any questions about this drug, please talk with your child’s doctor, nurse, pharmacist, or other health care provider.
- If you think there has been an overdose, call your poison control center or get medical care right away. Be ready to tell or show what was taken, how much, and when it happened.
This information should not be used to decide whether or not to take this medicine or any other medicine. Only the healthcare provider has the knowledge and training to decide which medicines are right for a specific patient. This information does not endorse any medicine as safe, effective, or approved for treating any patient or health condition. This is only a brief summary of general information about this medicine. It does NOT include all information about the possible uses, directions, warnings, precautions, interactions, adverse effects, or risks that may apply to this medicine. This information is not specific medical advice and does not replace information you receive from the healthcare provider. You must talk with the healthcare provider for complete information about the risks and benefits of using this medicine.
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