An emulsion is a biphasic liquid dosage form in which one immiscible liquid is dispersed as fine droplets throughout another liquid with the help of an emulsifying agent. The liquid present as droplets is called the dispersed phase or internal phase, while the surrounding liquid is called the continuous phase or external phase. Emulsions are…
1. Definition of Suspension Suspensions: A suspension is a heterogeneous, biphasic liquid dosage form in which finely divided, insoluble solid particles are dispersed throughout a liquid medium called the dispersion medium or vehicle. The solid particles constitute the dispersed phase, while the liquid constitutes the continuous phase. Suspensions are used for oral, topical, ophthalmic, and…
Introduction to Excipients and Methods of Preparation: Pharmaceutical preparations are medicinal products formulated with active pharmaceutical ingredients (APIs) and other suitable substances to ensure safety, stability, effectiveness, and patient acceptability. Official preparations are pharmaceutical preparations that are described in an official pharmacopoeia, such as the Indian Pharmacopoeia (IP), British Pharmacopoeia (BP), or United States Pharmacopeia…
Pharmaceutical Liquid Dosage Forms for External Use: Liquid dosage forms are pharmaceutical preparations in which drugs are dissolved, suspended, or dispersed in a suitable liquid vehicle. They are used for application to the skin, mucous membranes, and body cavities, or for administration into specific body sites. Liquid preparations for external use and body cavities include…
Monophasic and Biphasic Liquids: Liquid dosage forms are pharmaceutical preparations in which the active pharmaceutical ingredient (API) is dissolved, suspended, or dispersed in a suitable liquid vehicle. They are commonly used for oral administration because they are easy to swallow, convenient for children and elderly patients, and allow flexible dose adjustment. Liquid dosage forms are…