AR-M 1000390 (hydrochloride), also known as ARM-390, is a low-internalizing nonpeptidic δ-selective opioid receptor agonist; derivative of SNC 80.

Dihydrokavain is one of the six major kavalactones found in the kava plant; appears to contribute significantly to the anxiolytic effects of kava, based on a study in chicks.

PF-04859989 HCl is a brain-penetrable and irreversible inhibitor of kynurenine amino transferase II (KAT II), which is the enzyme responsible for most of the brain synthesis of kynurenic acid.