Hi there. I was just wondering if anyone could give me any idea of the symptoms a friend might display if they were overdosing on opiates specifically heroin. JUst had a bit of a scary moment with a firend who collapsed right after taking a shot (fool had been drinking and had taken some benzos too) and was unresponsive for several minutes with very shallow breathing. I was just about to ring an ambulance, when he was able to tell me not too, and he's now snoring away on the bed, nice deep breaths thank fuck. I use heroin occassionally too, but am always very cautious with doses and don't run in heroin user circles, so i'm not sure what signs I should look out for to tell the difference between a real od and someone who just over did it. Any advice is appreciated.