Definition: Gels are semisolid dosage forms in which a liquid phase (water or oil) is entrapped in a three-dimensional cross-linked polymeric network, resulting in a jelly-like consistency. Gels are used for topical, oral, ophthalmic, nasal, or rectal applications, depending on the active ingredient and formulation. Characteristics of Gels 1. Semi-Transparent: Gels are often clear or…
Definition: Pastes are semisolid dosage forms intended for external application on the skin or mucous membranes. They are characterized by their high content of finely powdered solid materials (20–50%) dispersed in a suitable base, resulting in a stiff consistency. The high solid content differentiates pastes from ointments and creams, making them less greasy and more…
Creams are semisolid emulsions intended for topical application on the skin or mucous membranes. They are typically a mixture of oil and water, with the consistency and type determined by the proportion of oil (lipid) and water. Creams are used for both therapeutic and cosmetic purposes. Types of Creams 1. Oil-in-Water (O/W) Creams Description: Water…
Definition: Ointments are semi-solid topical preparations intended for application on the skin or mucous membranes. They are typically greasy and contain a high proportion of an oily base. Ointments deliver therapeutic agents locally or systemically, protect the skin, and hydrate or lubricate the skin. Characteristics of Ointments 1. Semisolid Consistency: Allows easy application and adherence…
Dry powder for reconstitution is a pharmaceutical dosage form where a dry, powdery mixture of active ingredients and excipients is packaged for reconstitution into a liquid preparation by adding a specified amount of solvent, typically water, immediately before use. This form is particularly suitable for drugs that are unstable in liquid form over extended periods….
Definition: A suspension is a biphasic liquid dosage form containing finely divided insoluble solid particles dispersed uniformly in a liquid medium. The solids are maintained in suspension by employing suitable suspending agents. Suspensions are used for oral, topical, ophthalmic, and parenteral delivery of drugs. Characteristics of Suspensions 1. Heterogeneous System: Composed of two phases—dispersed phase…
Definition An emulsion is a biphasic liquid dosage form consisting of two immiscible liquids (usually oil and water), where one liquid (dispersed phase) is finely dispersed as droplets within the other liquid (continuous phase) with the aid of an emulsifying agent. Emulsions are used for oral, topical, or parenteral applications to deliver drugs with improved…
Definition: An elixir is a clear, sweetened, hydroalcoholic liquid preparation containing one or more active pharmaceutical ingredients (APIs). Elixirs are intended for oral administration and are formulated to improve the solubility of water-insoluble drugs, mask unpleasant drug flavors, and enhance patient compliance. Characteristics of Elixirs Clarity: Elixirs are transparent due to the complete dissolution of…
Definition: Syrup is a concentrated, viscous, aqueous solution of sugar (commonly sucrose) containing one or more active pharmaceutical ingredients (APIs). It is used primarily as a liquid oral preparation for delivering drugs in a palatable and stable form. Types of Syrups Medicated Syrups: Contain active ingredients for therapeutic effects. Example: Paracetamol syrup for fever. Non-Medicated…
Definition: A solution is a homogenous liquid preparation that contains one or more active ingredients dissolved in a solvent or a mixture of solvents. These preparations are administered orally for systemic effects or locally for specific conditions in the gastrointestinal tract. Types of Oral Solutions: Simple Solutions: These contain the active ingredient(s) dissolved in a…
Notes aur Pharmacy Jobs ki notification pane ke liye Telegram group join karein!
Join Now