There are 4 different types of parasite that cause malaria in different parts of the world; hence the medication used to prevent malaria varies according to you destination. The treatments may change according to the updated information depending on current levels of resistance. It always best to check first before purchasing your antimalarials, even if you have used them for your destination previously. Use fitfortravel.nhs.uk for up to date information on the right medication to take for the area that you will be travelling to.
Each antimalarial has its own pros and cons; Malarone is the most expensive but tends to have the least side effects whilst doxycycline is the cheapest but can make you burn very easily in the sun. Once you have found which antimalarial(s) are suitable for your trip, you should read the information on each individual product carefully before making your decision.