Plasmapheresis?

Couldn’t find anything on this topic on the forum. I do not want to claim that finasteride is still inside us, this is very unlikely but possible if we have some problems with CYP450 or some other liver ferments. In addition, even if all amount of finasteride is metabolized, its metabolites can still be active and poison our lives - not enough to inhibit DHT, but enough to shut down allopregnanolone synthesis in the brain. So has anyone tried plasmapheresis or other cleaning methods?