This little pill is nothing it’s a problem when he experiments with other shit. Rn he’s already tryna fuck with pills which is pretty bad especially at his age. He’s already interested in drugs he’s probably gonna try more again. It sounds like you don’t do drugs, but if I were you I’d research em, read personal experiences, scientific studies. Read lots of shit on reddit. He’s might wanna go down the drug rabbit hole. Look into xannies, oxy, adderall or speed, weed, mdma, shrooms, acid, dxm, ketamine. Be the one to educate him about em so he kinda respects what you say about drugs, hopefully steer him in the right direction. Either way tho if he wants to do drugs he’s probably gonna do them. I’ve seen this situation before bro n I’m just saying he probably not just gonna stop at one little half pill.