Promethazine performs on histamine-1 (H1) receptors. H1 receptors are present inside the bronchial tubes and within the circulatory technique. The attachment of histamine to these receptors leads to bronchoconstriction and increased vascular permeability, which leads to plasma leakage. Promethazine is metabolized by the liver to a range of compounds; the https://patrickn766ewm5.wiki-cms.com/user