1 any change in tone or pitch of the voice; modulation: to signal a question by a rising inflection. 2  a change of a curve or arc from convex to concave or the reverse. 3  Gram.
Ambien is the brand name for zolpidem, a drug that's used to treat insomnia. Insomnia is a sleep disorder that makes it difficult for you to go to sleep, stay asleep, or both. Ambien is in a class of drugs called sedative-hypnotics. They work by slowing the activity in your brain, which allows for a state of sleep. Sanofi-Aventis makes Ambien, which was approved by the Food and Drug Administration (FDA) in 1992. Several companies make generic zolpidem, which became available in 2007.
Indications and Usage for Ambien. Ambien (zolpidem tartrate) is indicated for the short-term treatment of insomnia characterized by difficulties with sleep initiation. Ambien has been shown to decrease sleep latency for up to 35 days in controlled clinical studies [see Clinical Studies (14)].