Scientific scientific studies of promethazine hydrochloride and codeine phosphate syrup didn't contain enough numbers of topics aged sixty five and about to find out whether or not they reply in different ways from younger topics. Other claimed scientific expertise hasn't determined discrepancies in responses between the elderly and young individuals. https://wockusa.com/product/hi-tech-promethazine-hcl-and-codeine-phosphate-syrup/