I would guess at stimulants, such as amphetamine, methamphetamine, cocaine etc. Will work to increase activity and reduce appetite. Major dose-dependent side ef

I would guess at stimulants, such as amphetamine, methamphetamine, cocaine etc. Will work to increase activity and reduce appetite. Major dose-dependent side effects in that they are bad for the heart, reduce impulse control, loss of sleep, addictive, amongst others