Ditolylguanidine (1,3-Di-o-tolylguanidine) is an agonist of sigma receptor (σ1/σ2 receptor)[1].
References:
[1]. Skuza G, et al. Sigma1 receptor antagonists attenuate antidepressant-like effect induced by co-administration of 1,3 di-o-tolylguanidine (DTG) and memantine in the forced swimming test in rats. Pol J Pharmacol. 2003 Nov-Dec;55(6):1149-52.
















