How Do I Do Ibogaine Without Nausea?

[Parki]

I am looking for a way to avoid/reduce nausea with iboga.
this is what I've found this far, but since I am not going to combine iboga with shrooms I don't consider this.

And I also found that I should take lower doses before the flood dose, so I could avoid nausea,
but there wasn't manual on what doses should I take.

Does anyone have experience with this?
I also did 4 grams already without any nausea at all.
I am going to do 20g dose, so if iboga could cause nausea there will a lot of it.

[Parki]

root bark*