DIFLUCAN® (fluconazole), the first of a new subclass of synthetic triazole antifungal agents, is available as tablets for oral administration, as a powder for oral suspension and as a sterile solution for intravenous use in glass and in Viaflex® Plus plastic containers.

Fluconazole is designated chemically as 2,4-difluoro-α ,α ¹-bis(1H-1,2,4-triazol-1-ylmethyl) benzyl alcohol with an empirical formula of C₁₃H₁₂F₂N₆O and molecular weight 306.3. The structural formula is:

Fluconazole is a white crystalline solid which is slightly soluble in water and saline.

DIFLUCAN tablets contain 50, 100, 150, or 200 mg of fluconazole and the following inactive ingredients: microcrystalline cellulose, dibasic calcium phosphate anhydrous, povidone, croscarmellose sodium, FD&C Red No. 40 aluminum lake dye, and magnesium stearate.

DIFLUCAN for oral suspension contains 350 mg or 1400 mg of fluconazole and the following inactive ingredients: sucrose, sodium citrate dihydrate, citric acid anhydrous, sodium benzoate, titanium dioxide, colloidal silicon dioxide, xanthan gum and natural orange flavor. After reconstitution with 24 mL of distilled water or Purified Water (USP), each mL of reconstituted suspension contains 10 mg or 40 mg of fluconazole.

DIFLUCAN injection is an iso-osmotic, sterile, nonpyrogenic solution of fluconazole in a sodium chloride or dextrose diluent. Each mL contains 2 mg of fluconazole and 9 mg of sodium chloride or 56 mg of dextrose, hydrous. The pH ranges from 4.0 to 8.0 in the sodium chloride diluent and from 3.5 to 6.5 in the dextrose diluent. Injection volumes of 100 mL and 200 mL are packaged in glass and in Viaflex® Plus plastic containers.

The Viaflex® Plus plastic container is fabricated from a specially formulated polyvinyl chloride (PL 146® Plastic) (Viaflex and PL 146 are registered trademarks of Baxter International, Inc.). The amount of water that can permeate from inside the container into the overwrap is insufficient to affect the solution significantly. Solutions in contact with the plastic container can leach out certain of its chemical components in very small amounts within the expiration period, e.g., di-2-ethylhexylphthalate (DEHP), up to 5 parts per million. However, the suitability of the plastic has been confirmed in tests in animals according to USP biological tests for plastic containers as well as by tissue culture toxicity studies.

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