Collins Russian Dictionary 2nd Edition © HarperCollins Publishers 2000, 1997:
soporific [sɔpəˈrɪfɪk] adj (speech) усыпля́ющий; (drug) снотво́рный
n снотво́рное nt adj
* is used to mark translations which have irregular inflections. The Russian-English side of the dictionary gives inflectional information.
Русский: