There are several different major classes of<unk> s, including: * Calcium (Ca2+)<unk> s * Chloride (Cl−)<unk> s * Potassium (K+)<unk> s * Sodium (Na+)<unk> s The following types which act on ligand-gated ion channels (LGICs) via binding to their pore also exist: * 5-HT3 receptor antagonists * GABAA receptor antagonists * nACh receptor antagonists * NMDA receptor antagonists<unk> s are also known to act at AMPA receptors, Glycine receptors, Kainate receptors, P2X receptors and Zinc (Zn2+)-activated channels. The type of inhibition mediated by<unk> s may be referred to as noncompetitive or uncompetitive.
Channel blocker
Channel opener
Channel modulator
Chloride channel opener
Calcium channel blocker
Beta-adrenergic agonist
Muscle relaxant
GABA analogue