Which forms of medications can be delivered through the vaginal route?

The vaginal route of medication administration is specifically designed to allow for localized or systemic effects through the absorption of medications applied directly in the vaginal canal. Suppositories, creams, gels, and douches are formulated to effectively dissolve or absorb within this environment, making them suitable for treatment of various conditions such as infections, hormonal issues, or for local anesthetic effects.

Suppositories are solid forms that melt at body temperature, allowing for effective delivery of medication. Creams and gels are also designed to adhere to tissue and can provide localized relief or deliver hormones. Douches are typically used for cleaning or medicating the vaginal area.

In contrast, pills and injections are not suited for this route of administration as they are intended for oral or intramuscular/subcutaneous delivery. Ointments and patches are primarily designed for topical application or transdermal use, which is not specific to the vaginal route. Aerosols and sprays are designed for inhalation or external application and do not apply to vaginal administration either. Therefore, the forms mentioned in the correct answer align with the characteristics and requirements of medications intended for vaginal delivery.