I recently came across some interesting info on lousewort.
Apparently, it will take on the characteristics of any plant it is attached to...including the alkaloids.
If one was to grow this alongside say mescaline cacti it would theoretically produce mescaline..
So the question is how would one go about extracting the alkaloids?

Without me actually knowing this for a fact, I'm assuming that lousewort doesn't produce any alkaloids, only suck out the juice from the plant its attached to, including some of the alkaloids. The plant will therefore contain alkaloids, but they will have to be stolen from the mother plant. The pathways to these alkaloids require several enzymes not normally present in plants, and I can't think that the lousewort actually starts producing these enzymes. But how cool wouldn't it be if I am wrong...

Makes sense, but would the host plant continue to produce alkaloids to replace the sapped ones? If that is the case it would still be cool!

From what I briefly read Lousewort is a parasitic plant, therefore it seems to me it is a case of merely leeching the alkaloids from the host plant, rather than producing them itself. I mean that would be nothing sort of miraculous if a plant could produce mescaline, then DMT, then opium.