Taking two depressants such as a sleeping pill along with alcohol can result in

Question

drug antagonism.
drug antagonism. - only 2 answers are allowed

drug synergism.
drug synergism. - only 2 answers are allowed

cancelling each other’s effects.
cancelling each other’s effects. - only 2 answers are allowed

producing extreme drowsiness.
producing extreme drowsiness. - only 2 answers are allowed
Only 2 answers are allowed.
Only 2 answers are allowed.

Answer 1

producing extreme drowsiness.
drug antagonism.