Question

what is liquid dosage form and what are various problem occuring in their formulation?​

Answer 1

Liquid formulations have been widely used in pharmaceutics due to their high dosing flexibility, ease of swallowing, and quick onset of action. Typically, they are categorized as monophasic and biphasic formulations, wherein within these two broad categories lies a wide range of dosage forms (Fig. 20.1). In a monophasic liquid the active pharmaceutical ingredient (API) is completely dissolved within the vehicle, while in the case of biphasic liquids, the API does not completely dissolve and instead is suspended or dispersed within the vehicle, forming two phases. Indeed, the choice of liquid dosage form is dependent upon various factors, where the type of API and the desired therapeutic effect are considered the major elements.

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