Oxeladin is a cough suppressant. It is a highly potent and effective drug used to treat all types of cough of various etiologies.

Abscisic acid is a compound isolated from fruits and plants.

(R)-Nepicastat HCl, the R-enantiomer of Nepicastat HCl, is a potent and selective inhibitor with IC50 of 25.1 nM and 18.3 nM for bovine and human dopamine-β-hydroxylase, with negligible affinity for twelve other enzymes and thirteen neurotransmitter receptors.