VENTOLIN Tablets contain albuterol sulfate, USP, the racemic form of albuterol and a relatively selective beta2-adrenergic bronchodilator. Albuterol sulfate has the chemical name (±) a1-[(tert-butylamino)methyl]-4-hydroxy-m-xylene-a,a¹-diol sulfate (2:1)(salt) and the following chemical structure:

Albuterol sulfate has a molecular weight of 576.7, and the empirical formula is (C₁₃H₂₁NO₃)₂·H₂SO₄.

Albuterol sulfate is a white crystalline powder, soluble in water and slightly soluble in ethanol.

The World Health Organization recommended name for albuterol base is salbutamol.

Each VENTOLIN Tablet contains 2 or 4 mg of albuterol as 2.4 or 4.8 mg, respectively, of albuterol sulfate for oral administration. Each tablet also contains the inactive ingredients corn starch, lactose, and magnesium stearate.

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