what are cholinergic drugs
1 A substance (or ligand) is cholinergic if it is capable of producing, altering, or releasing acetylcholine (indirect-acting) or mimicking its behaviour at one or more of the body's acetylcholine receptor types (direct-acting).2  Such mimics are called parasympathomimetic drugs or cholinomimetic drugs.n general, the word choline refers to the various quaternary ammonium salts containing the N,N,N-trimethylethanolammonium cation. Found in most animal tissues, choline is a primary component of the neurotransmitter acetylcholine and functions with inositol as a basic constituent of lecithin.