sympathomimetic drug

A sympathomimetic drug is a medication that mimics the effects of the sympathetic nervous system, which is responsible for the body's "fight or flight" response. These drugs stimulate certain receptors in the body called adrenergic receptors, leading to increased heart rate, expanded airways, and vasoconstriction (narrowing of blood vessels). They are used to treat conditions such as asthma, allergic reactions, or low blood pressure, and can also include substances like adrenaline or medications that boost alertness. Essentially, sympathomimetic drugs activate responses similar to those experienced during stress or excitement.