(-)-Guaiol is a biocatalyst. Guaiol has insecticidal activity.

Guaifenesin is also a centrally acting skeletal muscle relaxant. Guaifenesin has antitussive effects, it can inhibit the cough-reflex sensitivity in acute viral cough, it is an expectorant commonly by thinning the mucus or phlegm in the lungs.

Eupatoriochromene retard seed germination , reduced radicle and hypocotyl growth of weed and crop plant seedlings and increased adventitious root formation of mung bean cuttings. Eupatoriochromene has insecticidal activity, it exhibits toxicity againstCulex pipiens (house mosquito) larvae andOncopeltus fasciatus (large milkweed bug) nymphs.

Robustaflavone is a biflavonoid that is obtained by oxidative coupling of two molecules of apigenin resulting in a bond between positions C-3 of the hydroxyphenyl ring and C-6 of the chromene ring. Isolated from Thuja orientalis and Rhus succedanea it exhibits antioxidant, cytotoxic and anti-hepatitis B activity. It has a role as an antioxidant, a metabolite, an antineoplastic agent and an anti-HBV agent. It is a hydroxyflavone, a ring assembly and a biflavonoid.

Emetine hydrochloride and dehydroemetine combined with chloroquine in the treatment of children with amoebic liver abscess.

Marinobufagenin is a cardiotonic steroid secreted by the toad Bufo rubescens and other related species such as Bufo marinus. An endogenous Na/K-ATPase inhibitor, it is a vasoconstrictor with effects similar to digitalis. It has a role as an epitope and an EC 3.6.3.9 (Na(+)/K(+)-transporting ATPase) inhibitor. It is an epoxy steroid and a steroid hormone. It is functionally related to a (5beta)-bufadienolide.