Is Xanax FDA approved?

The Food and Drug Association(F.D.A.) , U.S.A. has given its approval to the antianxiety medicine-Xanax.

Xanax is extensively metabolized in the humans. Xanax/alprazolam and its metabolites are excreted primarily in the urine. Changes in the absorption, distribution, metabolism and excretion of xanax, belonging to the class benzidiazepines have been reported in a variety of disease states including alcoholism, impaired hepatic function and renal impairment. Because of the similarity of xanax to the other benzodiazepines it is assumed that xanax/alprazolam undergoes transplacented passage and that is excreted in the human milk. Thus nursing mothers should rather avoid the intake of xanax.

Gender has no influence on the effectiveness of xanax. According to FDA, alprazolam/xanax concentrations may be reduced to 50/% in smokers compared to non-smokers. Withdrawal symptoms may occur if xanax is discontinued abruptly. After the discontinuation of xanax the withdrawal symptoms include, muscle twitch, muscle cramps, impaired concentration, appetite decrease, weight-loss etc. Other symptoms such as anxiety and insomnia, were frequently seen during discontinuation, but it could not be determined that whether these symptoms were due to return of illness, rebound or withdrawal.