dinnitel is an appitite suppressant .im not sure if its just a side effect or if its actually a diet pill but all i know is when i take it i eat less and have a rediculous surge of energy . you have to take it eary in the morning or else it will keep u awake at night .and if you are taking it later you have to atleast work out to get tired. they say you should take it 3mths at a time and take a break after ..