SHAPES AND WEIGHTS
The shapes and weights of suppositories depend on the route of administration.
See figure 5-1 for the various shapes that a suppository may take.
a. Rectal Suppositories. The most suitable shape for rectal suppositories is
that of a bullet tapered on one or both ends with the base longer and more tapered than
the head. This shape allows easy insertion and helps prevent accidental expulsion of
the suppository before it has the time to melt. Rectal suppositories weigh about 2-
grams (gm). Suppositories for children should be smaller, longer, and narrower than
b. Vaginal Suppositories. Vaginal suppositories should weigh about 5-gm.
Figure 5-1. Identification of suppositories.