An emulsion is a dispersed system containing at least two immiscible (or partially miscible) liquid phases. The two phases of emulsions are stabilized by the…
Pharmaceutical emulsions are liquid disperse systems in which the dispersed phase is composed of small globules of a liquid distributed throughout a vehicle in which…
Drug delivery systems (DDS) are an important component of drug development and therapeutics. The design of an effective delivery system requires a thorough understanding of…
Effervescent salts (sometimes called effervescent powders) are a special type of bulk powders or granules containing sodium bicarbonate, a suitable organic acid (citric or tartaric),…
Powders are solid dosage form containing dry mixtures of finely divided drug substance(s) and excipients intended for internal or external use. Although the use of…
Powders are solid dosage forms containing dry mixtures of finely divided medicinal and non-medicinal agents intended for internal or external use. It is a solid…
Stability of a pharmaceutical product may be defined as the capability of a particular formulation in a specific container/closure system to remain within its physical,…
Suspensions are commonly referred to as dispersions in which the therapeutic agent is dispersed in the external phase (the vehicle). In an ideal suspension, particles…
A suspension is a disperse system in which solid, vehicle-insoluble particles (internal phase) are uniformly suspended by mechanical agitation and formulation design throughout the liquid…
Rheologic consideration is of great importance in the study of the stability of pharmaceutical suspensions. This is because the viscosity of a suspension can modify…
A suspension is a heterogeneous system consisting of two phases. The dispersed or internal phase is made up of particulate matter that is essentially insoluble…
Stokes’ law is a generalized equation that describes how certain factors affect the rate of settling in dispersed systems. The implication is that, as the…
Surfactant is a general name for substances that absorb to surfaces or interfaces to reduce surface or interfacial tension. These agents aid wetting and dispersion…
Surface active agents, also known as tensides, amphiphiles or surfactants (for short) is a general name for substances that tend to preferentially accumulate at the…
Pharmaceutical suspension is a liquid dosage form containing finely divided, undissolved drug particles dispersed throughout a liquid vehicle in which the drug exhibits a minimum…
Pharmaceutical suspensions are liquid dosage forms containing finely divided insoluble materials (the suspensoid) distributed somewhat uniformly throughout the suspending medium (suspending vehicle) in which the…
