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, chemical,...
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 are...
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 vehicle...
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 the...
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 in...
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 average...
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 of...
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 boundary...
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 degree...
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 drug...
Liquid dosage forms in addition to drug substance also contain excipients which serve different and specialized pharmaceutical purposes in the formulation. These excipients in most cases...
Liquid dosage forms are pourable pharmaceutical formulations which contain a mixture of active drug components and nondrug components (excipients) dissolved or suspended in a suitable solvent...
Dosage forms are believed to be as old as man himself, though doubts about the “measures” used by early man in quantifying these formulations never ceased...
Drug-excipient compatibility studies represent an important phase in drug development. Before a drug substance is formulated into the desired dosage form, there is need for the...
Stability analysis is an area of great interest in preformulation studies. It is a complex set of procedures performed on candidate drug molecules or dosage forms...
Solubility is an essential and extensively studied preformulation parameter. It focuses on drug-solvent system that could occur during drug delivery. Such information is important to the...
The development of an efficient dosage form is usually a long and complex process that involves a lot of capital and teamwork from different disciplines. Prior...
