Collins Russian Dictionary 2nd Edition © HarperCollins Publishers 2000, 1997:
drool [druːl] vi
he is drooling у него́ теку́т слю́ни
to drool over sth/sb (inf) роня́ть (impf) слю́ни по по́воду чего́-н/кого́-н
* is used to mark translations which have irregular inflections. The Russian-English side of the dictionary gives inflectional information.