ABSTRACT
A suspension consists of insoluble solid particles dispersed in a
liquid medium. The suspension typically consists of uniform par-
ticles that are readily suspended and easily dispersed. Suspension
dosage forms include oral suspensions, topical suspensions, and
suspensions for aerosols. Sterile suspension dosage forms include
suspensions for injection (subcutaneous, intramuscular, or intra-
articular) and suspensions for ophthalmic or otic administration.
Some suspensions are ready for use, while others consist of solid
powdermixtureswhich need to be reconstitutedwith a vehicle prior
to use. In addition, some suspensions are prepared from tablets.1
