Combinations - Tripping hard on Cannabis and Prozac

[Jacco]

Swim is beginning to get worried. Since going on prozac he's tripped occasionally from pot, but it seems to get more intense each time. He's tried a large range of different qualities and types of cannabis, but they all have roughly the same effect.

Recently, swim has assumed the voice of the character "Snake" from the Simpsons, and wasn't able to talk normally for several hours. Later, swim started stuttering involuntarily and could barely speak. Most recently, he sounded like a computer (each word was on a random pitch, stuttering was everywhere), objects started going hyper-3D and huge fractal patterns covered everything. He also thinks that things that have happened were part of a dream, finding out later that they were real. Time dilation is like 5 seconds turns into 30 minutes.

Has anyone else had this condition? Swim's past drug use (before he started tripping) was just Salvia and 2C-I. He doesn't seem to be intolerant to other psychedelics very much, though he only does low doses. Swim's getting pretty freaked out and would love an explanation/some advice.

(Note: this happens _every freaking time_ to swim, even when his friends smoke more than he does and don't get very high at all.)