Anxiety in any form can prevent a person from leading a normal life. In this competitive age, people of all age groups remain affected by some form of anxiety. While school going students remain nervous before exams, some corporate professionals suffer from loss of confidence before an important presentation.  An interview or participation in an important social gathering can also make people anxious. Some anxiety patients remain paralyzed by fear after hearing about an unfortunate incident or a road accident. Patients suffering from anxiety and panic attacks can improve their condition with the prescribed dose of an FDA endorsed benzodiazepine drug called Xanax. It acts on GABA neurotransmitters in the brain to lessen the symptoms of anxiety, calms the central nervous system and enables restless individuals to doze off at night. A prior recommendation of a senior health care professional is essential for a safe and healthy treatment. Heart patients and individuals with preexisting complications with lung and liver should seek the opinion of a physician before taking this drug. Individuals allergic to a benzodiazepine or any other sleep medicine must reveal their correct medical condition to a physician prior to its use. Dizziness, lethargy, slurred speech and drowsiness are some of the mild side effects which go away after a week. Allergic reaction such as difficulty in breathing, rashes and swelling of the face should never be taken lightly. Severe side effects, for example, hallucination, aggression, agitation and impaired vision must be brought to the notice of a physician. Anxiety sufferers can resort to an online drug store to buy Xanax in London.