What does local action of a medication mean?

Local action of a medication signifies that the effects of the drug are concentrated in a specific area of the body, rather than being distributed throughout the entire system. This type of action is particularly advantageous when the desired therapeutic effect is required at a localized site, such as in the case of topical treatments for skin conditions or ophthalmic solutions for eye ailments.

By targeting a specific area, local action can help to minimize systemic side effects that may arise from medications that are absorbed and affect the entire body. In essence, local action allows for more precise treatment of localized conditions, which can enhance the efficacy of the drug while reducing potential adverse effects associated with systemic absorption.