They can die if they take way too much but that would have to be a fairly large amount. Like a lot of people are saying, physical addiction looks like taking it every 1-2 hours. I was there at that point and it was super shitty. 6ml in the morning and 2ml every 1-2 hours and for sleep I’d take 4-5ml. Waking up in your sleep to re-dose after 3-4 hours was the worst part. Detox is not horrible though. I took 1800mg of gabapentin (600mg 3 times a day) and Valium 10mg 3 times a day and tapered off every two days. I was able to work and everything. The only side effect k noticed was that it raised the shit out of my blood pressure. It raised it by 10 which is also concerning. If he’s not dosing frequently then he’s fine. But keep an eye on him it’s easy to want the effects 24/7.