Sympatholytic drug

Definition

A sympatholytic drug is a type of medication that inhibits the postganglionic functioning of the sympathetic nervous system. It can lower blood pressure, reduce heart rate, and decrease stress responses by blocking or dampening the effects of sympathetic neurotransmitters.

Related terms

Autonomic Nervous System: The part of the nervous system that controls involuntary actions such as heartbeat and digestion.

Adrenergic Receptors: Proteins located on cell surfaces that respond to neurotransmitters norepinephrine and epinephrine, involved in the fight-or-flight response.

Beta: Blockers - A class of drugs that block beta-adrenergic receptors in the heart, lungs, and other areas, reducing stress on certain parts of the body