Thiothixene is a clinically useful typical antipsychotic.1 It acts as an antagonist at multiple receptors including dopamine D2 and D3 (sub-nanomolar), histamine H1, serotonin 5-HT7, and α1/2-adrenergic. Thiothixene stimulates efferocytosis, the phagocytic removal of apoptotic cells by macrophages, via increased expression of the retinol-binding protein receptor Stra6L leading to arginase 1 production.2 A potential new use for an old drug to facilitate the removal of diseased tissue.
