I take fluoxetine 100mg/d and st John's wort 2000mg/day. I've noticed if I take a meagre, 20mg DXM dose my pretty difficult depression just goes away and for a whole day, I feel really amazing. Any more and I start getting terrible muscle cramps and dread as well as hallucinations, I've not pushed it far enough to get increased body temp and seizures.

I know fluoxetine as well as also being an SSRI, inhibits the breakdown of DXM.

I really don't want to do this long term because I feel like something bad will happen, but at that dose and with how effective it is I can't see a reason not to.

Plz convince me this will go wrong so I'll not go down this road.