Alprazolam is a benzodiazepine drug used to treat anxiety, panic disorder, and insomnia. It is sold under the brand names Xanax, Alprax, Alprazolam Intensol, Alzolam, Constan, Solanax, Tafil, Trankimazin, Valeans, Xanor, Zenax and Zoldax of which Xanax is perhaps the best known.
It is uncertain how Alprazolam works but it binds with high affinity to the GABA benzodiazepine receptor complex and there is evidence that it operates by interacting with this complex.
Side affects can include drowsiness, coordination difficulties with dizziness. Release of hostility and other paradoxical effects such as irritability, excitability and hallucinations are known to occur with the use of benzodiazepines. A variety of other rarer side effects have been reported.
Benzodiazepines are rarely fatal when taken in overdose except when combined with alcohol or other medications. Symptoms of overdose include somnolence, hypnosis, muscle weakness, ataxia, dysarthria and paradoxical excitement. Diminished reflexes, confusion and coma can accompany severe overdose.
Alprazolam ( Xanax , Helix )
Yahoo! Health - Medication or Drug - Oral Alprazolam