Ambien (zolpidem) is a sedative, also called a hypnotic. Zolpidem affects chemicals in the brain that may be unbalanced in people with sleep problems insomnia). Ambien is used to treat insomnia. The immediate-release tablet is used to help you fall asleep when you first go to bed. The extended-release form, Ambien CR, which has a first layer that dissolves quickly to help you fall asleep, and a second layer that dissolves slowly to help you stay asleep. Your doctor will determine which form of Ambien is best for you.

Flexeril (cyclobenzaprine) is a muscle relaxant. It works by blocking nerve impulses (or pain sensations) that are sent to your brain. Flexeril is used together with rest and physical therapy to treat skeletal muscle conditions such as pain, injury, or spasms. Flexeril may also be used for purposes not listed in this medication guide.

Desoxyn is a central nervous system stimulant. It affects chemicals in the brain and nerves that contribute to hyperactivity and impulse control. Desoxyn is used to treat attention deficit hyperactivity disorder (ADHD). It is also to treat obesity in people who have not lost weight with diets or other treatments. Desoxyn may also be used for purposes not listed in this medication guide.