(R)-Praziquantel D11 is the deuterium labeled (R)-Praziquantel. (R)-Praziquantel, the active enantiomer of Praziquantel, is a partial agonist of the human 5-HT2B receptor. (R)-Praziquantel acts as an antischistosomal eutomer[1].
(R)-Praziquantel ((R)-PZQ) is a G-protein-coupled receptor ligand. (R)-Praziquantel modulation of serotoninergic signaling occurs over a concentration range sufficient to regulate vascular tone of the mesenteric blood vessels where the adult parasites reside within their host. The important anthelmintic is supported by a broad, cross species polypharmacology with (R)-Praziquantel modulating signaling events in both host and parasite[1].
[1]. Chan JD, et al. The anthelmintic praziquantel is a human serotoninergic G-protein-coupled receptor ligand. Nat Commun. 2017 Dec 5;8(1):1910.