Primaquine is the only generally available anti-malarial that prevents relapse in vivax and ovale malaria, and the only potent gametocytocide in falciparum malaria.

5-HT3 antagonist 5 is a quinoxalin-2-carboxamide compound that acts as a 5-HT3 receptor antagonist, counteracting 5-HT3 agonist and 2-methyl-5-HT, and demonstrating an anti-depressant effect in mice .

Sotatercept (ACE-011) is an activin receptor type IIA-Fc (ActRIIA-Fc) fusion protein and inhibitor of activin signaling.Sotatercept can be used in the study of pulmonary arterial hypertension.