Grapefruit juice can cause side effects with many medicines and should be avoided as a precaution . I take an accurate dose for my weight of moxi once a month orally with a meal as recommended to me . I am in my 15th month of treatment and 99 percent cured so I will not alter the treatments that have been advised . I only used chlorinated water (pool and spa) sulfur creams and medicated horse shampoo called mane n tale for itching which I no longer have. If I missed anything or if you are unsure of anything let me know I can do my best to get you an answer from my mom .