The present disclosure provides for a capsule dosage form of triamterene, the dosage form comprising: a) triamterene having a weight percentage in a range of 25-45% with respect to the total ingredients in the capsule dosage form； b) magnesium stearate having a weight percentage in a range of 1.5-13% with respect to the total ingredients in the capsule dosage form； and c) at least one diluent having a weight percentage in a range of 42-73.5% with respect to the total mixture/ingredients encapsulated in the capsule dosage form. The present disclosure also provides for a convenient process for preparation of the capsule dosage form.
