ZEBETA (bisoprolol fumarate) is a synthetic beta₁-selective (cardioselective) adrenoceptor blocking agent. The chemical name for bisoprolol fumarate is (±)-1-[4-[[2-(1-Methylethoxy)ethoxy]methyl]phenoxyl-3-[(1-methylethyl)amino]-2-propanol(E)-2-butenedloate (2:1) (salt). It possesses an asymmetric carbon atom in its structure and is provided as a racemic mixture. The S(-) enantiomer is responsible for most of the beta-blocking activity. Its empirical formula is (C₁₈H₃₁NO₄)₂ • C₄H₄O₄ and its structure is:

Bisoprolol fumarate has a molecular weight of 766.97. It is a white crystalline powder which is approximately equally hydrophilic and lipophilic, and is readily soluble in water, methanol, ethanol, and chloroform.

ZEBETA is available as 5 and 10 mg tablets for oral administration.

Inactive ingredients include: Colloidal Silicon Dioxide, Corn Starch, Crospovidone, Dibasic Calcium Phosphate, Hydroxypropyl Methylcellulose, Magnesium Stearate, Microcrystalline Cellulose, Polyethylene Glycol, Polysorbate 80, and Titanium Dioxide. The 5 mg tablets also contain Red and Yellow Iron Oxide.

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