Promethazine Is contraindicated in comatose states, and in people today recognised for being hypersensitive or to have had an idiosyncratic reaction to promethazine or to other A house teaspoon isn't an exact measuring gadget and may lead to overdosage, particularly when 50 % a teaspoon is usually to be measured. https://syrupshop.online/promethazine-with-codeine-syrup/