The most documented symptoms of<unk>  are cravings for<unk> , anger or irritability, anxiety, depression, impatience, trouble sleeping, restlessness (psychomotor agitation, including indeliberate movement), hunger or weight gain, and difficulty concentrating. Symptoms are usually strongest for the first few days and then dissipate over 2–4 weeks. The most common symptoms are irritability, anxiety, and difficulty concentrating. Depression and insomnia are the least common. Other withdrawal symptoms may include anhedonia, constipation, cough, decreased positive affect, dizziness, drowsiness, headache, impulsivity, fatigue, flu symptoms, mood swings, mouth ulcers, and increased dreaming. Cessation of<unk>  can also require changes in levels of various medications.
Nicotine withdrawal
Drug withdrawal
Opioid withdrawal
Benzodiazepine withdrawal syndrome
Alcohol withdrawal syndrome
Post-acute-withdrawal syndrome
Alcohol intoxication
Antidepressant discontinuation syndrome