he continuous use of Ambien may result in tolerance to desired effects. When this occurs, and rebound insomnia intensifies, p ... eople frequently resort to increasing the prescribed dose of medication – a practice that can result in some serious repercussions. Depending on the time of night, and dose of Ambien that is being taken, residual effects of the drug may persist through the next day. Some users claim that these effects resemble a hangover from a night of heavy drinking. One can suffer from the following for several hours after waking the next morning: Memory loss. Persistent drowsiness. Gastrointestinal disturbances such as nausea. Additionally, there are numerous reports of somnambulism (sleepwalking) and a bizarre phenomenon known as night eating syndrome—or sleep eating—that may occur, especially in the context of multiple doses. Doctors refer to a specific disorder associated with the medication as paradoxical excitation, which refers to the way in which some individuals who have taken Ambien exhibit unusual behavior while using the drug; some people drive a car, eat or walk in a sleep state. They are not aware of their movements, and they won’t remember what happened—often, they do not find out until someone tells them when they are awake or they are faced with the consequences, e.g., finding out they’ve been in a car accident. According to the U.S. National Library of Medicine, other side effects of Ambien include: Light headed feelings. Trouble walking. Problems with balance. Stomach cramps. Weak feelings. Appetite changes. Redness of the eyes. Joint pain. Muscle pain. When to Consult a Doctor The following signs and symptoms can indicate an allergic reaction or another condition that requires medical attention: Skin rash. Trouble breathing. Chest pain. Ambien Interactions: Ambien was evaluated in healthy subjects in single-dose interaction studies for several CNS drugs. Imipramine in combination with zolpidem produced no pharmacokinetic interactio read more