Are there any interactions between bactrim (sulfamethoxazole and trimethoprim) and olive leaf extract? or can i take them simultaneously? also, bactrim (sulfamethoxazole and trimethoprim) & garlic extract/monoluarin?

Most important thing: you must know when taking Bactrim (sulfamethoxazole and trimethoprim) is that it can form crystals in your kidneys if you don't hydrate enough. So taking larges amount of filtered water to protect your kidneys is paramount. Olive leaf extract which is the heart of the mediterranean diet should not pose a problem, but it's always good to take your supplements separately from your medications in general. You can take UR supplements.