Hi i want to start taking a product called prolong i also take a beta blocker called metoprolol, will it be ok to take these two together ?

Don't do it: Josh, prolong (http://performancenutrition.Herbalife.Com/en/products/prolong) contains 16 grams of sugar per portion. The main ingredient is fructose (sugar). 1 portion is 250 calories. Beyond that, it's just a multivitamin. There's no harm taking it with metoprolol but you're wasting your money and just adding empty calories with little nutritional value.