A friend of mine just took a pill and something really bad came up and he has to go to an emergency somewhere. He already took it 30-60 min ago so puking is not an option. It has not kicked in yet but he needs to stay sober. Any suggestions?
Suger sobers you up by increasing blood glucose and thus makes you feel more awake/aware. It's not a true sobriety. Same with coffee when your drunk, your still drunk but might sound a bit better due to the stimulation.
The effects of MDMA can be stopped or minimized by certain anti-depressants and anti-psychotics, but this can't be done safely. Rather than potentially ending up with two emergencies, maybe keep your friend company and help him tend to things while he is intoxicated if that's a viable solution.