Only change one medication at a time. That means starting, stopping, or changing doses. Unless one med is directly needed for another's side effects, it throws your system into a tailspin to do any more.
Herbs count as medication. So does caffeine, alcohol, tobacco, and any other drug, legal or illegal, natural or manufactured, plant-based or chemical.
One at a time.
Yes, this will probably mean it takes longer... but longer isn't forever.