Hi,
Herbs in general are harmless so long as there are noother medications involved. There are not too many studies regarding the interaction of particular allopathic medicines with particular herbs. Being on so many medications, which may themselves have side effects, it is better that you don't take any other herbal remedies. Even if there is no specific interaction, the herbs and allopathic medicines are excreted either through the liver or kidneys and taking both at once may damage either of these organs.