Ativan (Lorazepam) is an anti-anxiety agent (benzodiazepines,mild tranquilizer) used for the relief of anxiety, agitation and irritability, to relieve insomnia, to calm people with mania / schizophrenia and intravenously as a sedative and for nervous tension or to relieve anxiety prior to surgery. It has less of an effect on the liver than other benzodiazepines, making it better suited if you are taking birth control pills, anti-abuse drugs, propranolol, ulcer medications, or any other drug that affects the liver. Ativan (Lorazepam) may also be used to help in the prevention of severe alcohol withdraw symptoms (Delirium Tremens, or DTs), to treat amnesia, or in patients who are undergoing chemotherapy and have severe vomiting. It may be given to children to treat serial seizures by placing it under the tongue.
Xanax ( Alprazolam ) is an anti-anxiety agent benzodiazepine used primarily for short-term relief of mild to moderate anxiety and nervous tension. Alprazolam is also effective in the treatment of activity depression or panic attacks. It can also be useful in treating irritable bowel syndrome and anxiety due to a neurosis. Xanax ( Alprazolam ) may help the symptoms of PMS if extreme, and, if given with various narcotics, the pain from some cancers. Xanax ( Alprazolam ) is used to relieve anxiety, nervousness, and tension associated with anxiety disorders, agoraphobia, essential tremor, fibromyalgia ( low dosage ), and ringing ears.