After a significant overdose or accidental ingestion, the following may appear symptoms: narrowing of pupils, nausea, vomiting, cyanosis, increase temperature, tachycardia, arrhythmia, collapse, depression of cardiac activity, arterial hypertension, pulmonary edema, respiratory distress. In addition, mental disorders may occur, as well as depression of central nervous system functions, accompanied by drowsiness, lower body temperature, bradycardia, arterial hypotension, respiratory arrest and possible development of coma.
In case of an overdose associated with taking the drug inside, a gastric lavage is prescribed, Activated carbon.