A child has a greater body surface area, creating greater permeability resulting in an increase in absorption of topical agents, which may result in more adverse effects.
A topical drug is one that is applied directly to the skin or to an area of the body. Topical administration, which includes a wide range of classes such creams, foams, gels, lotions, and ointments, most frequently refers to application to bodily surfaces like the skin or mucous membranes to treat illnesses.
Numerous topical drugs are epicutaneous, which means they are put on the skin. In addition to being applied to the surface of the skin, topical drugs can also be inhaled, like asthma treatments, or administered to tissues other than the skin, such the conjunctiva of the eye, the ear, or the surface of a tooth. Topical comes from the Greek o topikos, which means "of a place."
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