Need to identify a pill urgently.
	
	
		A friend of mine has been taking some sort of pill regularly... presumably some form of amphetamine... The effects were lack of sleep, lack of appetite, increase in his state of awareness, lock-jaw, dry mouth, lots of energy. The pill is white and round. On one side is the line that divides the pill in half and on the other side 2 half circles intertwined (looks like 2 letters "C" connected... one of them being back to front)... can anyone help me with identifying it. It could probably be a prescription drug for attention deficit hyperactivity disorder (ADHD). I am scared of the side effects and dosage...