Promethazine is effective on histamine-1 (H1) receptors. H1 receptors are present from the bronchial tubes and during the circulatory system. The attachment of histamine to those receptors triggers bronchoconstriction and improved vascular permeability, which leads to plasma leakage. Promethazine might be applied To ease allergy signs or symptoms and nausea. https://karelg544ctk4.mdkblog.com/profile