General Methods of Preparation of Creams and Gels: Creams are semisolid emulsion dosage forms intended for application to the skin or mucous membranes. They contain one or more medicinal substances dissolved or dispersed in a suitable base. Creams are mainly classified into two types: General Methods of Preparation of Creams and Gels The most common…
General Methods of Preparation of Pastes: Pastes are semisolid dosage forms intended for external application to the skin. They contain a high proportion of finely powdered solids dispersed in a suitable base, making them generally stiffer and less spreadable than ointments. Examples: Zinc oxide paste, Lassar’s paste and dental paste. 2. General Methods of Preparation…
General Methods of Preparation of Ointments: Ointments are semisolid pharmaceutical preparations intended for external application to the skin or mucous membranes. They generally contain one or more medicaments dissolved, suspended or dispersed in a suitable ointment base. The two general methods of preparation of ointments are: 2. Incorporation Method Definition: The incorporation method involves mixing…
Semisolid Dosage Forms: Semisolid dosage forms are pharmaceutical preparations intended for application to the skin, mucous membranes, or certain body cavities. They are generally used for local drug delivery, although some preparations are designed to produce systemic effects through absorption across the skin. These preparations have a consistency between solid and liquid dosage forms. They…