The drug zolpidem, also known by the brand name Ambien, is a sedative-hypnotic principally used for the short-term treatment of insomnia. It is given to make patients who have trouble sleeping fall asleep more quickly and get a good night's sleep.

Gamma-aminobutyric acid (GABA), a neurotransmitter in the brain, is enhanced by the active ingredient in Ambien, zolpidem. GABA promotes relaxation and lowers brain activity, which can help in falling asleep.