voriconazole - injection, Vfend

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voriconazole - injection, Vfend

GENERIC NAME: VORICONAZOLE - INJECTION (VOR-i-KON-a-zole)

BRAND NAME(S): Vfend

Medication Uses | How To Use | Side Effects | Precautions | Drug Interactions | Overdose | Notes | Missed Dose | Storage

USES: Voriconazole is an azole antifungal used to treat a variety of fungal infections.

HOW TO USE: This medicine comes with a Patient Information Leaflet. Read it carefully. Ask your doctor, nurse, or pharmacist any questions that you may have about this medicine.This medication is given by injection into a vein as directed by your doctor, usually every 12 hours. It should be injected slowly over 1 to 2 hours. The dosage is based on your medical condition, response to treatment, and any interacting drugs you may use.If you are giving this medication to yourself at home, learn all preparation and usage instructions from your health care professional. Before using, check this product visually for particles or discoloration. If either is present, do not use the liquid. Learn how to store and discard medical supplies safely.This medication works best when the amount of medicine in your body is kept at a constant level. Therefore, use this drug at evenly spaced intervals.Continue to use this medication until the full prescribed amount is finished. Stopping the medication too early may result in a return of the infection.Tell your doctor if your condition persists or worsens.

SIDE EFFECTS: Nausea, vomiting, diarrhea, and headache may occur. If any of these effects persist or worsen, tell your doctor promptly.Remember that your doctor has prescribed this medication because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.Tell your doctor right away if you have any serious side effects, including: vision changes (e.g., blurring, color vision changes), sensitivity of eyes to light (photophobia), pain/swelling at injection site, shortness of breath, flushing, increased sweating, bone/muscle/joint pain, weakness, muscle stiffness/spasm, mental/mood changes (e.g., agitation, restlessness), swelling of the ankles/feet, tiredness, easy bleeding/bruising, signs of infection (e.g., fever, persistent sore throat).Get medical help right away if any of these rare but very serious side effects occur: fast/slow/irregular heartbeat, severe dizziness, fainting, change in the amount of urine, confusion, slurred speech, trouble breathing, seizures, chest/jaw/left arm pain.Voriconazole may rarely cause serious (possibly fatal) liver problems. Tell your doctor immediately if any of these highly unlikely but very serious side effects occur: yellowing eyes/skin, dark urine, persistent nausea/vomiting, stomach/abdominal pain.A very serious allergic reaction to this drug is rare. However, get medical help right away if you notice any symptoms of a serious allergic reaction, including: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.Voriconazole can commonly cause a mild rash that is usually not serious. However, you may not be able to tell it apart from a rare rash that could be a sign of a severe allergic reaction. Therefore, seek immediate medical attention if you develop any rash.This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.In the US -Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.

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PRECAUTIONS: Before using voriconazole, tell your doctor or pharmacist if you are allergic to it; or to other azole antifungals (e.g., itraconazole, ketoconazole); or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.Tell your doctor your medical history, especially of: liver disease, kidney disease, heart problems (e.g., irregular heartbeats, cardiomyopathy), recent chemotherapy, untreated electrolyte imbalance (e.g., low calcium levels).Voriconazole may cause a condition that affects the heart rhythm (QT prolongation). QT prolongation can infrequently result in serious (rarely fatal) fast/irregular heartbeat and other symptoms (such as severe dizziness, fainting) that need medical attention right away.The risk of QT prolongation may be increased if you have certain medical conditions or are taking other drugs that may cause QT prolongation. Before using voriconazole, tell your doctor or pharmacist of all the drugs you take and if you have any of the following conditions: certain heart problems (heart failure, slow heartbeat, QT prolongation in the EKG), family history of certain heart problems (QT prolongation in the EKG, sudden cardiac death).Low levels of potassium or magnesium in the blood may also increase your risk of QT prolongation. This risk may increase if you use certain drugs (such as diuretics/"water pills") or if you have conditions such as severe sweating, diarrhea, or vomiting. Talk to your doctor about using voriconazole safely.This drug may cause vision changes. Do not drive, use machinery, or do any activity that requires clear vision until you are sure you can perform such activities safely. Do not drive at night.Avoid alcoholic beverages because they can increase the risk of serious liver problems.This medication may make you more sensitive to the sun. Avoid prolonged sun exposure, tanning booths, and sunlamps. Use a sunscreen and wear protective clothing when outdoors.Before having surgery, tell your doctor or dentist that you are using this medication.Older adults may be more sensitive to the side effects of this drug, especially QT prolongation (see above).This medication is not recommended for use during pregnancy because it may harm an unborn baby. Therefore, it is important to prevent pregnancy while taking this medication. Consult your doctor for more details and to discuss reliable forms of birth control. It is recommended that men and women using this medication use 2 effective forms of birth control (e.g., condoms and diaphragms with spermicide) while using this medication. If you become pregnant or think you may be pregnant, contact your doctor immediately.It is not known whether this medication passes into breast milk. Breast-feeding is not recommended while using this drug. Consult your doctor before breast-feeding.

DRUG INTERACTIONS: Drug interactions may change how your medications work or increase your risk for serious side effects. This document does not contain all possible drug interactions. Keep a list of all the products you use (including prescription/nonprescription drugs and herbal products) and share it with your doctor and pharmacist. Do not start, stop, or change the dosage of any medicines without your doctor's approval.Some products that may interact with this drug include: ergot alkaloids (such as ergotamine, dihydroergotamine), sirolimus, a certain combination HIV medication (such as efavirenz/emtricitabine/tenofovir).Many drugs besides voriconazole may affect the heart rhythm (QT prolongation), including amiodarone, dofetilide, pimozide, procainamide, quinidine, sotalol, macrolide antibiotics (such as erythromycin), among others.This medication can slow down the removal of other medications from your body, which may affect how they work. Examples of affected drugs include certain alpha blockers (such as alfuzosin, silodosin, tamsulosin), birth control pills, cisapride, dronedarone, eletriptan, eplerenone, lurasidone, ranolazine, certain "statin" drugs (such as lovastatin, simvastatin), ticagrelor, tolvaptan, among others.Other medications can affect the removal of voriconazole from your body, which may affect how voriconazole works. Examples include certain barbiturates (such as mephobarbital, phenobarbital), carbamazepine, enzalutamide, primidone, rifamycins (such as rifabutin, rifampin), ritonavir, St. John's wort, among others.

OVERDOSE: If overdose is suspected, contact a poison control center or emergency room immediately. US residents can call their local poison control center at 1-800-222-1222. Canada residents can call a provincial poison control center.

NOTES: Laboratory and/or medical tests (e.g., liver/kidney function tests) should be performed periodically to monitor your progress or check for side effects. Consult your doctor for more details.

MISSED DOSE: For the best possible benefit, it is important to receive each scheduled dose of this medication as directed. If you miss a dose, contact your doctor or pharmacist immediately to establish a new dosing schedule. Do not double the dose to catch up.

STORAGE: Consult the product instructions and your pharmacist for storage details. Keep all medications away from children and pets.Do not flush medications down the toilet or pour them into a drain unless instructed to do so. Properly discard this product when it is expired or no longer needed. Consult your pharmacist or local waste disposal company.

Information last revised January 2014. Copyright(c) 2014 First Databank, Inc.

Last Editorial Review: 4/16/2014

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You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.

Selected from data included with permission and copyrighted by First Databank, Inc. This copyrighted material has been downloaded from a licensed data provider and is not for distribution, except as may be authorized by the applicable terms of use.

CONDITIONS OF USE: The information in this database is intended to supplement, not substitute for, the expertise and judgment of healthcare professionals. The information is not intended to cover all possible uses, directions, precautions, drug interactions or adverse effects, nor should it be construed to indicate that use of particular drug is safe, appropriate or effective for you or anyone else. A healthcare professional should be consulted before taking any drug, changing any diet or commencing or discontinuing any course of treatment.

Reviewed on 4/16/2014
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