pirlindole hydrochloride

Pirlindole, a reversible inhibitor of monoamine oxidase A (RIMA), has been developed and used primarily as an antidepressant compound in Russia. Structurally and pharmacologically, it is similar to metralindole. Pirlindole has received approval for the treatment of depression in several European and non-European countries. Its oral absolute bioavailability ranges from 20% to 30%, mainly due to significant first-pass metabolism. In rats, the oral Tmax varies between 2.5 and 6 hours, while in dogs, it ranges from 0.8 to 2 hours.

Pirlindole-D4 hydrochloride is intended for use as an internal standard for the quantification of pirlindole by GC- or LC-MS. Pirlindole hydrochloride (T202905) is a selective and reversible monoamine oxidase A (MAO-A) inhibitor. It is selective for MAO-A over MAO-B. In rats, it reverses the depressive-like effects induced by chronic mild stress (CMS), increases proliferation of hippocampal neural progenitor cells, and reverses dendritic atrophy in granule neurons. Pirlindole is also an inhibitor of enterovirus-D68 and coxsackievirus B3 (CV-B3), inhibiting the genome replication phase of CV-B3 infection with an EC50 value of 7.7 µM independent of MAO-A activity.