What is a suppository primarily used for?

A suppository is primarily used to deliver medication into a body cavity, such as the rectum or vagina. This method of administration allows for the absorption of the active ingredients directly into the bloodstream or localized areas, which can be particularly beneficial when oral administration is not possible, such as in cases of nausea, vomiting, or when a patient is unable to take medications by mouth. Suppositories can be used for various purposes, including pain relief, management of constipation, or hormonal treatments.

In contrast, a solid dosage form for oral use refers to tablets or capsules meant to be swallowed, which is a different route of medication delivery. A topical application refers to medications designed to be applied on the skin's surface for localized effects, and injectable forms involve delivering medication directly into bodily tissues or fluids via a syringe or needle. Each of these methods serves specific needs and conditions and is distinct from the purpose and function of a suppository.