Found a light blue oblong pill without any markings?

All drugs manufactured in the US MUST have identifying numbers and/or letters on them. Supplements like vitamins, minerals and herbal products are not regulated the same as medications so they dont have to have these markings. Illegally produced medications wont have markings, of course. I'm not sure what your friend means by "Vicodin 1000" because there is no such pill to my knowledge. Vicodin is a combination of hydrocodone and acetaminophen and it comes in 5/500 meaning 5mg hydrocodone (the opioid pain reliever) and 500mg of acetaminophen (a non-opioid pain reliever), and Vicodin ES is 7.5/750 which is hydrocone 7.5mg and 750mg acetaminophen, and Vicodin HP 10/660 which is 10mg hydrocodone and 660 of acetaminophen. There is no "Vicodin 1000". There is probably no real way to tell what your boy has there. I cant pull up your picture on my computer but I'm betting it is probably a supplement of some kind. I would ask your son what it is. Depending on his age, you might use this as an opening to a talk about the dangers of drugs and getting and using drugs given to him by "friends" and other sources. Obtaining drugs from any source other than a doctor and a legit pharmacy or other legal source, is always a chance. Even from a well meaning friend, you can never be sure of what you have-the friend could have been lied to or mixed up as to what they think they are giving you. My oldest son, in his early teens, got into working out with weights with his friends and they were experimenting with a lot of pre-workout meds that were supplements, often with high doses of caffiene and I had to talk to him about some of the dangers of these kinds of supplements. Just because it is OTC or a supplement or even an herb doesnt mean it is safe in all situations. Most OTC meds and herbs are safe when taken according to directions and with no other drugs like prescription drugs but in some situations they can be quite harmful and even lethal in some cases. This is something even many adults are not aware of. Many people think that anything sold OTC is safe no matter what. Herbal products especially, since they come from plants, people think they are harmless which is very far from the truth! This is what I told my kids and I make them show me any bottles of supplements that they want to use and I scrutinize them for ingredients that I feel are not good for them to be taking. Good luck and I hope this is an opportunity for you to talk to your child.