Promethazine HCI Strong H₁-histamine receptor antagonist; moderate muscarinic (anticholinergic) blockade; weak antagonism at 5-HT₂, D₂ and α-adrenergic receptors; non-competitive NMDA receptor antagonist ฿20,000.00 View Drug Usage:0.1-3%(2%) Cost:20.00-600.00฿/kg View
