Nicotinic Antagonist

**Semantic type:** Chemical Viewed Functionally

**Definition:** Natural or synthetic compounds inhibiting acetylcholine neurotransmitter action at nicotinic receptors, which are ionotropic receptors that form ligand-gated ion channels in cells' plasma membranes.

**Synonyms:** - Nicotinic Cholinergic Antagonist - Nicotinic Receptor Antagonist