The subject of this paper are different types of poisoning and its risks in the elderly. Aging is an irreversible individual process, and in old age changes occur in organs and organ systems. All 5 senses tend to weaken in old age. This is exactly the risk for poisoning the elderly. Food poisoning is most often accidental due to reduced sense of smell and taste and sight. While drug poisonings can be accidental or intentional (suicide attempt or homicide), carbon monoxide is one of the most common substances of poisoning in the elderly, both due to faulty installations and due to single life. Due to cognitive deficits, poisoning by various chemical agents is also possible. Poisoning is a disease caused by poisons, ie substances that are foreign to the human body, and when taken into the body, they cause a disorder in the functional and anatomical structure of organs and the organism. Poisoning can be divided into: intentional, accidental, environmental and industrial. Treatment of poisoning includes resuscitation and initial stabilization of the patient, diagnosis of the type of poisoning, non-specific treatment, specific treatment and supportive treatment. The nurse has a number of tasks in risk recognition, prevention, treatment, and subsequent education and rehabilitation of an elderly person who has been exposed to poisoning. The aim of this paper is to present the acute and chronic poisonings that are most common in the elderly and why and under what circumstances they occur. A large number of poisonings were committed for the purpose of suicide. Show possible ways of treatment, rehabilitation and prevention of suicide attempts. What measures are primary and what are secondary prevention and what are they based on.