Almitrine mesylate (S4439-GRP)

Almitrine mesylate (Almitrine bismesylate, Almitrine dimethanesulfonate, Almitrine dimesylate), a pharmacologically unique respiratory stimulant, acts as an agonist of peripheral chemoreceptors located on the carotid bodies. Almitrine mesylate inhibits the activity of Ca2+-dependent K+ channel by decreasing its open probability with IC50 of 0.22 μM.