abstract |
Novel (R)-N-stereoisomers of 7,8-saturated-4,5-epoxy-morphinanium analogs are disclosed. Pharmaceutical compositions containing the (R)-N-stereoisomers of 7,8-saturated-4,5-epoxy-morphinanium analogs and methods for their pharmaceutical uses are also disclosed. Such analogs are disclosed as being useful in treating, among varying conditions, opioid-induced constipation. |