Absorption Codeine is absorbed with the gastrointestinal tract with maximum plasma concentration developing 60 minutes submit administration. The existence of the superior-Unwanted fat, large-calorie food did not considerably effect the PK of codeine. Promethazine has an elimination 50 %-lifetime of 10-14 hours, with excretion of metabolites appearing from the urine https://exceeddirectory.com/listings695689/hi-tech-promethazine-syrup-for-dummies