Monophasic dosage forms are pharmaceutical preparations that consist of a single phase, typically in liquid form. They play a crucial role in delivering medications and therapeutic agents through various routes of administration. Formulating monophasic liquids involves considering theoretical aspects such as the selection of adjuvants like stabilizers, colorants, and flavors. In this article, we will explore the theoretical aspects of monophasic formulation and examine examples of monophasic liquids, including gargles, mouthwashes, throat paint, ear drops, nasal drops, liniments and lotions, enemas, and collodions.
