I often double and triple the dose of many products. Others, like bloodroot, I can't even take a fourth of the recommended dose without getting severely ill. Here are some things that can help-
Iodine
Bloodroot
Red Clover Stillingia
Diatomaceous Earth
Wormseed Oil
Experience and Clear
Wormwood
Green Black-Walnut Hull
Cloves
Garlic
Oregano Oil
There are plenty more, this is just what comes to mind first. Mix and match. Make your own bullets.