In Gals with regular codeine metabolism (standard CYP2D6 activity), the level of codeine secreted into human milk is very low and dose-dependent. There isn't any info on the effects of the codeine on milk production. Promethazine is metabolized by the liver to a number of inactive metabolites such as sulfoxides https://emiliofjhfb.newsbloger.com/32861898/what-does-legal-lean-for-sale-mean