Lisdexamfetamine
"Been on Vyvanse for three months now. I'm 6 foot 195 pounds and 20 years old but find even the 30 mg dosage to be more than enough for me. Experience occasional bouts of dizziness and when in stressful situation have some degree of chest pains. Lasts more than the full 12 hours for me. I have to wake up at 8 am in order to fall asleep around 1 AM.  Also when I take Vyvanse I notice some degree of hair loss. I feel as if my brain is telling my body to work and as a result my body is working in triple overtime to keep up."