A multivitamin has been prescribed by his doctor, as well as an iron pill, but he's also taking other vitamins and herbs that, according to what we've been reading, help boost the immune system. His nutritionist OK'd them, but I was wondering if they could possibly have an adverse effect on his drug treatment. Some of the ones he's taking, on top of the multivitamin twice a day, are Vitamin A, E, B complex, Folic Acid, Zinc, Astragalus, Ginseng and Flaxseed Oil. A present in the various preparations and make sure that the it doesn't exceed 25,000 units per day. Beta-carotene gets converted to vitamin A, but is not toxic.
Vitamin D is also toxic if taken excessively.
Vitamin E is safer, but can cause side effects at doses above 1000 mg per day. B vitamins and vitamin C are pretty safe, thouh high doses of vitamin C have been associated with abdominal pain, diarrhea, and kidney stones. There has been some controversy over zinc supplements in patients who aren't zinc deficient. I recently read one abstract, for example, that suggested that zinc could actually make the integrase enzyme of the HIV virus work better, which would not be a good thing. I really can't comment on the herbs.