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Adempas

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Adempas

Adempas
(riociguat) Tablets

WARNING

EMBRYO-FETAL TOXICITY

Do not administer Adempas to a pregnant female because it may cause fetal harm [see CONTRAINDICATIONS and Use in Specific Populations].

Females of reproductive potential: Exclude pregnancy before the start of treatment, monthly during treatment, and 1 month after stopping treatment. Prevent pregnancy during treatment and for one month after stopping treatment by using acceptable methods of contraception [see Use in Special Populations].

For all female patients, Adempas is available only through a restricted program called the Adempas Risk Evaluation and Mitigation Strategy (REMS) Program [see WARNINGS AND PRECAUTIONS].

DRUG DESCRIPTION

Adempas (riociguat) is a tablet for oral administration. Riociguat is methyl 4,6-diamino-2-[1-(2-fluorobenzyl)-1Hpyrazolo [3,4-b]pyridin-3-yl]-5-pyrimidinyl (methyl) carbamate with the following structural formula:

Adempas (riociguat)  Structural Formula Illustration

Riociguat is a white to yellowish, crystalline, non-hygroscopic substance with a molecular weight of 422.42 g/mol. In solid form it is stable to temperature, light, and humidity.

The solubility at 25°C in water: 4 mg/L, in ethanol: 800 mg/L, in 0.1 HCl (pH 1): 250 mg/L and in buffer (phosphate) pH 7: 3 mg/L. In the pH range of 2 to 4 the solubility showed strong pH-dependency. Solubility increases at lower pH values.

Each round film-coated tablet contains 0.5 mg (1.0, 1.5, 2.0, 2.5 mg) riociguat. The inactive ingredients are cellulose microcrystalline, crospovidone, hypromellose 5cP, lactose monohydrate, magnesium stearate, sodium laurylsulfate, hydroxypropylcellulose, hypromellose 3cP, propylene glycol, titanium dioxide. Adempas 1 mg, 1.5 mg, 2 mg and 2.5 mg tablets contain, in addition, ferric oxide yellow. Adempas 2 mg and 2.5 mg tablets contain, in addition, ferric oxide red.

Last reviewed on RxList: 11/5/2013
This monograph has been modified to include the generic and brand name in many instances.

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