Synonyms for Diazepam (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):
Valium
From the ODE community, based on WordNet
add/edit