Caught my 17 yr. old son with 25 small, white, round hydromorphone hcl pills. He X'd out dosage amount but guess to be 4 mg. or more according to PDR. He won't tell me anything more. What are effects on him? How much is he paying on the street for them? How many would he be taking to get his high? I've never seen him "stoned" before so don't know what to look for. He's a big kid @ 6' & 250#. Are these pills bad enough to have his blood tested?