Misuse and abuse of amphetamines might lead to amplified heart price, respiratory rate, or hypertension; perspiring; dilated pupils; hyperactivity; restlessness; insomnia; lessened urge for food; lack of coordination; tremors; flushed skin; vomiting; and/or abdominal ache. Stress, psychosis, hostility, aggression, and suicidal or homicidal ideation