According to WHO, poisoning with snake venom is recorded annually in 500 000 people, among them 6-8% of cases - with a fatal outcome. The most severe poisoning occurs when a snake bites the head and neck, or when a poison enters the blood directly. With the bite of aspidids and sea snakes, pain is often absent, but within 20-30 minutes the condition deteriorates sharply, weakness, numbness in the face and trunk region, and collapse due to histamine release develop.