In march 2005 i used HEPATEX 200, demal 200, dembarrah 200 and typo 200 during my visit to burma, laos and cambodia. i enjoyed the trip immensely and came home free of any symptoms or disases or, just as importantly, side effects from injections. i recently had a blood test to measure immunity and was pleasantly surprised to find i was immune to HEP A. i believe that the immunity was triggered by the course of hepatex i took during my march trip. it was the first time i had used these products so now my faith and confidence in them is sky high.