Well I have heard from a reliable source that compounds ketamine are great potentiators of psychedelics, just one must tred lightly as they can amplify the experience level beyond one's comfort level or expectations.
Oh I also forgot to mention, avoid anything with an MAOI, there are compounds in the cactus that do not sit well with them.
We have chosen this life for a reason, and it is our purpose to understand why.
When you were born, you cried and the world rejoiced; live your life so that when you pass, the world cries and you rejoice.
Only those who are willing to go too far can possibly find out how far one can go.