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A pharmaceutical suspension is a coarse dispersion of insoluble solid particles in a liquid medium. The particle diameter in a suspension is usually greater than 0.5 µm. However, it is difficult and also impractical to impose a sharp boundary between the suspensions and the dispersions having finer particles. Pharmaceutical suspension In an ideal suspension, particles are uniformly dispersed and remain so even after prolonged periods of time. Even if sedimentation occurs, particles should readily redisperse upon mild agitation of the container. Read Also:  How To Reconstitute Granules And Powders For Oral Suspension Advantages Of Pharmaceutical Suspension 1. Pharmaceutical suspension can improve chemical stability of certain drug offering resistance to degradation of drugs due to hydrolysis, oxidation or microbial activity 2. Drug in suspension exhibits higher rate of bioavailability than other dosage forms 3. Duration and onset of action can be controlled 4. Suspension can mask th...

A Pharmaceutical suspension is a coarse dispersion in which internal phase is dispersed uniformly throughout the external phase. The internal phase consisting of insoluble solid particles having a specific range of size (0.5 to 5 microns) which is maintained uniformly throughout the suspending vehicle with the aid of a single or combination of suspending agents. The external phase (suspending medium) is generally aqueous in some instance, may be an organic or oily liquid for non oral use. Pharmaceutical suspension The term "disperse system" refers to a system in which one substance (the dispersed phase) is distributed, in discrete units, throughout a second substance (the continuous phase). Each phase can exist in a solid, liquid, or gaseous state. Read Also :  Classification Of Pharmaceutical Liquid Dosage Form Most suspensions are classified as a coarse suspension which is a dispersion of particles with a mean diameter greater than 1µm (1 to 100 µm). A colloidal suspension ...