The pharmacy near sint rose cafe near the boardwalk & the pharmacy in marigot are both easy to deal with. I found products cheaper than home. They speak English in marigot. If you bring your own I would bring them in original containers in case of customs issues explaining what's in them.
Hope you enjoy your trip! Sunshine & wine are always a boost to your immune system! <img src="http://www.traveltalkonline.com/forums/images/graemlins/Grin.gif" alt="" />