Adderall cause insomnia

Patient: I have pretty bad adhd. Indian, 15 years, male. prescribed 40mg lied about its effect to get a 60mg dose for that extra help with homework. even with a weak dose the good effects such as focus are low but for me regardless of strength i cannot get any sleep. how do other millions of people sleep on this drug that lasts like 20 hours. again even with my prescribed dose i still get no sleep

Symptoms: Insomnia