<unk> , also known as<unk>  overdose, is the condition of having too much<unk> . Symptoms may include a tremor, increased reflexes, trouble walking, kidney problems, and an altered level of consciousness. Some symptoms may last for a year after levels return to normal. Complications may include serotonin syndrome.<unk>  can occur due to excessive intake or decreased excretion. Excessive intake may be either a suicide attempt or accidental. Decreased excretion may occur as a result of dehydration such as from vomiting or diarrhea, a low sodium diet, or from kidney problems. The diagnosis is generally based on symptoms and supported by a<unk>  level of greater than 1.2 mEq/L. Gastric lavage and whole bowel irrigation may be useful if done early. Activated charcoal is not effective. For severe<unk>  hemodialysis is recommended. The risk of death is generally low. Acute<unk>  generally has better outcomes than chronic<unk> . In the United States about 5,000 cases are reported to poison control centers a year.<unk>  was first described in 1898.
Lithium toxicity
Tricyclic antidepressant overdose
Opioid-induced endocrinopathy
Alcohol withdrawal syndrome
Benzodiazepine overdose
Antidepressant discontinuation syndrome
Nicotine withdrawal
Alcohol intoxication