Like Capt.JG said, your local needs will not be the same as someone in
another latitude. Snakes vrs. bears and so on -

we went to our local doctor and told him we were cruising central
America (from los Angeles) and he made us a list of all kinds of things
and wrote a bunch of scripts to get the stuff. He showed us how to use
it too. You'd be surpirsed what most docs will do if they think you are
up and up.