VFEND® I.V. (voriconazole) for Injection VFEND® Tablets (voriconazole) VFEND® (voriconazole) for Oral Suspension Description

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Prescribing Information

VFEND^® I.V. (voriconazole) for Injection
VFEND^® Tablets (voriconazole)
VFEND^® (voriconazole) for Oral Suspension
Description


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VFEND^® (voriconazole), a triazole antifungal agent, is available as a lyophilized powder for solution for intravenous infusion, film-coated tablets for oral administration, and as a powder for oral suspension. The structural formula is:

Voriconazole is designated chemically as (2R,3S)-2-(2,4-difluorophenyl)-3-(5-fluoro-4-pyrimidinyl)-1-(1H-1,2,4-triazol-1-yl)-2-butanol with an empirical formula of C₁₆H₁₄F₃N₅O and a molecular weight of 349.3.

Voriconazole drug substance is a white to light-colored powder.

VFEND I.V. is a white lyophilized powder containing nominally 200 mg voriconazole and 3200 mg sulfobutyl ether beta-cyclodextrin sodium in a 30 mL Type I clear glass vial.

VFEND I.V. is intended for administration by intravenous infusion. It is a single-dose, unpreserved product. Vials containing 200 mg lyophilized voriconazole are intended for reconstitution with Water for Injection to produce a solution containing 10 mg/mL VFEND and 160 mg/mL of sulfobutyl ether beta-cyclodextrin sodium. The resultant solution is further diluted prior to administration as an intravenous infusion (see DOSAGE AND ADMINISTRATION).

VFEND Tablets contain 50 mg or 200 mg of voriconazole. The inactive ingredients include lactose monohydrate, pregelatinized starch, croscarmellose sodium, povidone, magnesium stearate and a coating containing hypromellose, titanium dioxide, lactose monohydrate and triacetin.

VFEND for Oral Suspension is a white to off-white powder providing a white to off-white orange-flavored suspension when reconstituted. Bottles containing 45 g powder for oral suspension are intended for reconstitution with water to produce a suspension containing 40 mg/mL voriconazole. The inactive ingredients include colloidal silicon dioxide, titanium dioxide, xanthan gum, sodium citrate dihydrate, sodium benzoate, anhydrous citric acid, natural orange flavor, and sucrose.

PRINTER-FRIENDLY

VFEND Safety Information

Important Safety Information

Most frequently reported adverse events (all causalities) in therapeutic trials were visual disturbances, fever, rash, vomiting, nausea, diarrhea, headache, sepsis, peripheral edema, abdominal pain, and respiratory disorder. Treatment-related adverse events that most often led to discontinuation in clinical trials were elevated LFTs, rash, and visual disturbances.

VFEND treatment–related visual disturbances are common. The effect of VFEND on visual function is not known if treatment continues beyond 28 days. There have been post-marketing reports of prolonged visual adverse events, including optic neuritis and papilledema. These events occurred primarily in severely ill patients who had underlying conditions and/or concomitant medications, which may have caused or contributed to the events. If treatment continues beyond 28 days, visual function should be monitored. Patients should be advised not to drive at night when taking VFEND and to avoid potentially hazardous tasks if they perceive any change in vision.

VFEND is contraindicated with terfenadine, astemizole, cisapride, pimozide, quinidine (since increased plasma concentrations of these drugs can lead to QT prolongation and rare occurrences of torsade de pointes), sirolimus, rifampin, rifabutin, carbamazepine, long-acting barbiturates, ergot alkaloids, and St. John’s Wort (Hypericum perforatum). VFEND is also contraindicated with ritonavir (400 mg every 12 hours). If VFEND is coadministered with efavirenz, the VFEND maintenance dose should be increased to 400 mg every 12 hours and the efavirenz dose should be decreased to 300 mg every 24 hours. When treatment with VFEND is stopped, the initial dosage of efavirenz should be restored.

There have been uncommon cases of serious hepatic reactions during treatment with VFEND (clinical hepatitis, cholestasis, and fulminant hepatic failure, including fatalities). LFTs should be evaluated at the start of and during the course of therapy. Patients have rarely developed serious cutaneous reactions, such as Stevens-Johnson syndrome, during treatment with VFEND.

Pregnancy Category D.

Please see full prescribing information.

VFEND^® I.V. (voriconazole) for Injection/VFEND^® Tablets (voriconazole)/VFEND^® (voriconazole) for Oral Suspension

vfend_safety_information.htm