I don't deny that we might often pay more for pharmaceutical products in the US than other countries do. There are several reasons for that, but primarily, it's the country of region that sets the price. Pharmaceutical companies are ham-strung because they would like to sell their product for a reasonable price, but have to do so with many constraints. Pharma companies are usually left with one of two options: they can sell their products at a greatly-reduced price, or they can not sell their product at all.
If we could incent other countries to spend a little more on life-saving medicines, we might not have to spend so much here.
The second option also includes the fact that the governments of those price-fixing countries will also encourage and support counterfeit production of the pharma's products which erode the pharma's legitimate market share in neighboring markets. So it actually goes MUCH further than just "don't sell the product there at all".