What is the definition of lotion in pharmacy terms?

Lotion, in pharmacy terms, is specifically defined as a fluid emulsion or suspension intended for external use on the skin. This formulation is designed to provide hydration, deliver medications, or assist in the treatment of various skin conditions. Lotions typically have a higher water content compared to cream or ointment formulations, making them ideal for spreading easily over larger areas of the skin without leaving a heavy residue.

This characteristic allows lotions to provide a cooling effect and helps in the absorption of active ingredients. The liquid nature of lotions also differentiates them from other topical medications like ointments, which are more viscous and occlusive. Understanding this definition is crucial for pharmacy technicians, as they often assist in dispensing and advising patients on the appropriate use of these products.