Alcohol withdrawal can have both physical and mental symptoms. The most common physical symptoms include shaking, sweating, restlessness, nausea, headache, sleep disturbance, high blood pressure, and seizures.
A particularly severe form is delirium tremens. This condition manifests itself through short-term memory impairment, respiratory problems, and heart and circulatory symptoms. Altered consciousness is a life-threatening complication which can progress to coma. This can develop when alcohol is discontinued abruptly after prolonged regular use.
Mental withdrawal symptoms can include depressive mood, anxiety state, concentration problems, mood swings, and aggressiveness.
Alcohol withdrawal should always take place under medical supervision.