Butyrylcholinesterase Deficiency, also known as pseudocholinesterase deficiency, is related to chorea, benign hereditary and infantile apnea, and has symptoms including apnea An important gene associated with Butyrylcholinesterase Deficiency is BCHE (Butyrylcholinesterase). The drugs Pharmaceutical Solutions and Succinylcholine have been mentioned in the context of this disorder. Affiliated tissues include liver and kidney, and related phenotypes are abnormal circulating enzyme concentration or activity and respiratory failure