Quinine is a natural cinchona alkaloid that has been used for centuries in the prevention and therapy of malaria. Quinine is also used for idiopathic muscle cramps. Quinine therapy has been associated with rare instances of hypersensitivity reactions which can be accompanied by hepatitis and mild jaundice.

ethyl 1-[(4-cyanobenzyl)oxy]-2-(3-cyanophenyl)-4-methyl-1H-imidazole-5-carboxylate is a platelet aggregation inhibitor.

3',4'-Dihydroxyacetophenone (Qingxintong) is an active constituent of Chinese medicine. It is platelet aggregation Inhibitor and also has anti-arrhythmia activity.

Protopine (Fumarine) is a benzylisoquinoline alkaloid. It has been found to inhibit histamine H1 receptors and platelet aggregation, and acts as an analgesic.

Carbasalate calcium (Rheomin) is an analgesic, antipyretic, and anti-inflammatory drug, as well as a platelet aggregation inhibitor.

4(3H)-Quinazolinone (4-Hydroxyquinazoline) is a chemically synthesized masonry block, a biologically active nitrogen heterocyclic compound. It possesses various biological properties such as antibacterial, antifungal, anticonvulsant, anti-inflammatory, anti-HIV, anticancer and pain relieving activities.

Rocepafant (LAU8080) is a platelet-activating factor (PAF) antagonist that attenuates hypoxic-ischemic brain damage in neonatal rats.Rocepafant inhibits tumor necrosis factor-Afa-mediated cytotoxicity in mouse L929 tumor cells.

Dersalazine (Dersalazine Free Base), an inhibitor of platelet-activating factor, exerts intestinal anti-inflammatory activity in different rodent types of colitis by down-regulating IL-17 expression, with potential efficacy in patients with ulcerative colitis.