Xanax is a benzodiazepine that is prescribed to patients suffering from mental anxiety and stress. Xanax works by increasing the activity of certain neurotransmitters that inhibit the normal activity of the brain, producing a sensation of calmness and relaxation. Benzodiazepine is an addictive drug and prolonged use of it results in serious complications and can be fatal in some cases. The one main complication linked to an addictive drug is its withdrawal symptoms. Withdrawal symptoms of Xanax include dizziness, concentration problems, neck and face pain, and muscle spasms. But can Xanax cause seizures? This is one of the most heated debates regarding the withdrawal symptoms of any addictive drug.