I was prescribed a 15mg dose of Aderall. That helped with the heartrate issue that the 30mg caused, but it also created one more: my appetite was lowered. I meant one small snack and one meal a day lowered. Considering my metabolism is high (I am a 16 year old boy), and I am already pretty slim, I don't want to lose weight. Because of this, I am now prescribed a dose of 10mg as of today so I can actually eat.