Synonyms for Valium (same or very similar meaning)
WordNet sense 1 (a tranquilizer (trade name Valium) used to relieve anxiety and relax muscles; acts by enhancing the inhibitory actions of the neurotransmitter GABA; can also be used as an anticonvulsant drug in cases of nerve agent poisoning):
diazepamFrom the ODE community, based on WordNetadd/edit