What are these pills i found in my teenagers room?

i need to find a website that explains explicitly what these pills r that i found in my teenagers room. i need to know if they r prescription or street drug,a picture of the pill (if possible) front and back, what it does 2 a person if it IS prescription and what it does 2 someone if they take it and its NOT prescribed. if someone could please help direct me 2 a place where i can find out as much as possible about this. i fell like the more info i have BEFORE i confront him the better. thanx