I think taking the two together is overkill. I am not sure why wormwood is in a bowel cleansing product. Also - thyme, garlic and cloves are anti-parasitical and are also in HUMAWORM.
The amounts of herbs taken is very important. Herbs are drugs and too much or the worng combination can be very dangerous. I am glad that you asked this question! Just take one product or the other and please be cautious about how long you take wormwood and how much of it you take.