I had a friend try this in the military. He literally dumped a mixture of 3 to 5 bottles of unisom and benadryl into a nutrabullet blender with apple juice and went for it. When we got into his barracks room he was staring at us, very strangely, eyes wide open, sitting up on his bunk. It was like he could hear us say his name but couldn't actually see us, even though he was staring directly at us. Then he went into a seizure. This went on for a good 20 minutes before a medic arrived, then the MP's shortly after with paramedics. There was blood on the floor and his hands and socks had blood all over them but no one knew where the blood was coming from, we all got kicked out of the room. We found out later he sliced his achilles tendons also, I'm assuming after he guzzled his pills and moved to his bunk because a Leatherman with blood all over it was found in his drawer underneath the mattress pad, covered with his pt uniform. That day was insane. I was only 19 at the time but even then I clearly remember saying, "fuck it, don't call doc, if he wants to die let him." My roommate said, "what's wrong with you?!" and I said, "let's stay with him" and he said, "they're gonna think we fuckin did this shit!!" As more people showed up the situation became uncontrollable. We were questioned by the mp's as to how we discovered him like this and we just told them the truth which was just stopping by to hang out, normal day in the barracks. They asked if he's shown any signs leading up to it, acting strange or making any comments about off'ing himself. But he never did. They kept asking to see our hands which was stupid. Typical police, looking for anyone to plant a story on for an arrest. Regardless, pardon my excessively long story. He lived, got sent to the psychiatric floor for a while, we seen him passing us with 2 mp's one day while we were in formation. They helped him gather his belongings and never seen him again. I searched for him on FB and social media years later but he either lives under the radar or was finally successful with self deletion.