quagen pharma promethazine Fundamentals Explained
Promethazine is metabolized with the liver to various compounds; the sulfoxides of promethazine and N-demethylpromethazine are definitely the predominant metabolites showing up in the urine.Codeine has great antitussive action, Despite the fact that lower than that of morphine at equal doses. It can be used in preference to morphine, because Unwant