I first used Demal200 over 10 years ago when I went on my first overland trip to Africa – it was recommended by a tour guide who had used it for over 10 years himself. Since then I have used it countless times travelling and living in malaria zones in Africa and Asia and have never contracted malaria while others around me who were using tablets have. I love how easy it is to use with no side effects and would not hesitate to recommend it.