SPL Set ID: 532755cb-1cd3-4774-97af-05a53779b65f

Tenofovir disoproxil fumarate (TDF) (a prodrug of tenofovir) which is a fumaric acid salt of bis-isopropoxycarbonyloxymethyl ester derivative of tenofovir. TDF is converted in vivo to tenofovir, an acyclic nucleoside phosphonate (nucleotide) analog of adenosine 5’-monophosphate. Tenofovir exhibits activity against HIV-1 reverse transcriptase. The chemical name of TDF is 9-[(R)-2-[[bis[[(isopropoxycarbonyl)oxy]methoxy]phosphinyl]methoxy]propyl]adenine fumarate (1:1). It has a molecular formula of C 19 H 30 N 5 O 10 P • C 4 H 4 O 4 and a molecular weight of 635.52. It has the following structural formula: Tenofovir disoproxil fumarate is a white to off-white crystalline powder with a solubility of 13.4 mg/mL in distilled water at 25 °C. It has an octanol/phosphate buffer (pH 6.5) partition coefficient (log p) of 1.25 at 25 °C. Tenofovir disoproxil fumarate is available as tablets. Tenofovir disoproxil fumarate tablets are for oral administration and are available in strength of 300 mg of TDF, which are equivalent to 245 mg of tenofovir disoproxil. Each tablet of tenofovir disoproxil fumarate contains the following inactive ingredients: croscarmellose sodium, lactose monohydrate, magnesium stearate, microcrystalline cellulose, and pregelatinized starch. The tablets are coated with Opadry II Blue 30K505001, which contains FD&C blue #2 aluminum lake, hypromellose, lactose monohydrate, titanium dioxide and triacetin. In this insert, all dosages are expressed in terms of TDF except where otherwise noted. tenofovir-disoproxil-fumarate-fig-1