<prompt> A addict develops delusion, misleading hallucination of sight and hearing and the feeling of creeping things of grains of sand in the skin, he is addicted to:-CocaineDiazepamBarbituratesMethadone  <response>: Insects bugs crawling under the skin or presence of sand grain under the skin is a characteristic feature of chronic cocaine poisoning. Chronic Cocaine Poisoning COCAINISM COCAINOPHAGIACOCAINOMANIA: Unstable mental condition ,such as: Toxic delirium Psychotic disorder characterised by paranoid delusions, visual and tactile hallucination. Tactile hallucinations are characteristic: Associated with excoriation of the skin. This is also called cocaine bugs Formication Magnan symptom Sexual and reproductive dysfunction: There is loss of libido. Impotence and gynaecomastia occurs in male cocaine abusers. Women have major derangements in menstrual cycle function including galactorrhoea, amenorrhoea and infeility. Crack Babies: Cocaine abuse by pregnant women has been associated with an increased risk of congenital malformations in the foetus called crack babies. Tongue and teeth becomes black 