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Tafinlar

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Tafinlar

TAFINLAR
(dabrafenib) Capsules

DRUG DESCRIPTION

Dabrafenib mesylate is a kinase inhibitor. The chemical name for dabrafenib mesylate is N-{3-[5-(2-Amino-4-pyrimidinyl)-2-(1,1-dimethylethyl)-1,3-thiazol-4-yl]-2-fluorophenyl}-2,6-difluorobenzene sulfonamide, methanesulfonate salt. It has the molecular formula C23H20F3N5O2S2•CH4O3S and a molecular weight of 615.68. Dabrafenib mesylate has the following chemical structure:

TAFINLAR (dabrafenib) Structural Formula Illustration

Dabrafenib mesylate is a white to slightly colored solid with three pKas: 6.6, 2.2, and -1.5. It is very slightly soluble at pH 1 and practically insoluble above pH 4 in aqueous media.

TAFINLAR (dabrafenib) capsules are supplied as 50-mg and 75-mg capsules for oral administration. Each 50-mg capsule contains 59.25 mg dabrafenib mesylate equivalent to 50 mg of dabrafenib free base. Each 75-mg capsule contains 88.88 mg dabrafenib mesylate equivalent to 75 mg of dabrafenib free base.

The inactive ingredients of TAFINLAR are colloidal silicon dioxide, magnesium stearate, and microcrystalline cellulose. Capsule shells contain hypromellose, red iron oxide (E172), and titanium dioxide (E171).

Last reviewed on RxList: 1/22/2014
This monograph has been modified to include the generic and brand name in many instances.

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