WebJan 31, 2024 · For example, diphenhydramine and promethazine have more powerful local anesthetic properties than procaine. However, the concentrations required for this effect are much higher than therapeutic dozes can make. Another effect that H 1-antagonists exhibit is the relatively rapid onset of the clinical effect. Some drugs use parenterally to quickly ... WebThe data showed that promethazine was a safe and effective tranquilizer, rendered labor less unpleasant, and reduced the need for those analgesics and anesthetics which have …

Promethazine - brand name list from Drugs.com

WebChemical Structure: Chlorpromazine is the prototype phenothiazine . ... Promethazine and chloral hydrate were found to be ineffective in children while barbiturates proved harmful (El-Amin et al., 1991). Midazolam iv, or diazepam intra-rectally in children, are now the most commonly used. WebPromethazine and other first generation antihistamines with a tricyclic structure were discovered in the 1940s. Chlorpromazine, derived from promethazine originally as a … pawhut cage hamster

(±)-Promethazine C17H20N2S ChemSpider

WebJan 16, 2024 · Promethazine is first generation antihistamine that belongs to the phenothiazine class and is used predominantly as an antiemetic to treat nausea and vomiting and prevent motion sickness. Despite its phenothiazine structure, promethazine has not been linked to instances of clinically apparent acute liver injury. WebPhenergan Elixir contains promethazine hydrochloride 5 mg/5 mL. Excipients of known effect: maltitol solution, sodium benzoate, sodium sulfite, sodium metabisulfite … WebApr 1, 2024 · Descriptions. Promethazine injection is used to relieve or prevent some types of allergy or allergic reactions. It works by preventing the effects of a substance called histamine, which is produced by the body. Histamine can cause itching, sneezing, runny nose, and watery eyes. It can sometimes close up the bronchial tubes (air passages of the … pawhut cat cage