Methyldihydromorphine is related to heterocodeine and is not a synonym for dihydrocodeine, and its structure suggests that it is six to nine times stronger than morphine and 72 times stronger than dihydrocodeine.
Methyldihydromorphine is related to heterocodeine. Methyldihydromorphine is not a synonym for dihydrocodeine. It is six to nine times stronger than morphine and 72 times stronger than dihydrocodeine. Its structure suggests this.