Blarcamesine hydrochloride (AVex-73 hydrochloride) is a Sigma-1 Receptor agonist (IC50: 860 nM).

KSK67 is a selective dual antagonist of sigma-2 and histamine H3 receptors with inhibitory effects on H3 receptors, sigma-1, and sigma-2 receptors, with Ki values of 3.2, 1531, and 101 nM, respectively.KSK67 can be used to study injury pain and neuropathic pain.

Amitriptyline hydrochloride (Annoyltin) is the hydrochloride salt of the tricyclic dibenzocycloheptadiene amitriptyline with antidepressant and antinociceptive activities.

4-PPBP maleate is a potent σ1 receptor (ligand) agonist and a selective, non-competitive NR1a/2B NMDA receptor antagonist in the context of Xenopus oocytes expression, with neuroprotective properties.

AB21 HCl is a selective antagonist of the σ1 receptor, with Kis of 13 nM for σ1 receptor and 102 nM for σ2 receptor. AB21 HCl is known for its ability to reduce mechanical hypersensitivity.

Opipramol (Ensidon) is a compound with antidepressant activity that attenuates cocaine-seeking behavior in a rat model of self-administration.Opipramol is a sigma (σ) receptor agonist with anxiolytic activity and may be used in the study of neurological disorders.

Cutamesine dihydrochloride (SA4503 dihydrochloride) is a selective σ1 receptor agonist (IC50: 17.4 nM). It shows selectivity for σ1 over σ2 receptors, and inhibits angiotensin II-induced cardiomyocyte hypertrophy in vitro and attenuates myocardial hypertrophy in vivo. In a rat model of experimental stroke, it enhances brain plasticity and sensorimotor function.

KB-5492 free base is an orally available and selective antiulcer agent that inhibits sigma receptors, inhibits [3H]1,3-di(2-tolyl)guanidine (DTG) binding to sigma receptors, and may be useful in the study of gastric lesions and gastric secretion.