Amphetamine (Evekeo) is an expensive drug used to treat attention-deficit hyperactivity disorder and a sleep disorder called narcolepsy. It is also used as a short-term treatment, along with a reduced calorie diet and exercise, to help you lose weight. This drug is less popular than comparable drugs. There are currently no generic alternatives to Evekeo. It is not covered by most Medicare and insurance plans, but manufacturer and pharmacy coupons can help offset the cost. Compare central nervous system stimulants.