(Not sure of the strain, they were already in pill form with I got them.)

I gave a friend a few of my shoom capsules to try micro dosing today, they are about .2g each. He took one pill today and told me that he was having some psychedelic effects: disassociating, intense reactions to color and sound, and he said everything around him looked purple. Has anyone else experienced something like this at such low dosing? I microdose .4g and don't feel anything like that. Even at 3g I had very minor psychedelic effects. Is it possible he just extra sensitive to psilocybin? I wanted him to try microdosing because I thought it could be beneficial for him, and to build up confidence for a real trip together in the future. However, if he is going to have reactions like that all the time at extremely low doses, I am a little worried about him trying them again at all.