… Alkaloids, natural or reproduced by synthesis, and their …
Explanatory notes
… 29.39 - Alkaloids, natural or reproduced by synthesis, and their … dihydrocodeine (INN), ethylmorphine, etorphine (INN), heroin, hydrocodone (INN), hydromorphone (INN), morphine, … Some are obtained by synthesis. They are all more or less poisonous. This heading covers unmixed alkaloids and natural …