Hemp based products I am almost certain is legal in Portugal. There is no real difference between medical grade hemp products and medical grade cannabis products. They are the exact same plant. The only difference by definition is the allowed thc percentage. 

Please believe me when I say I want you to feel  better now. I used to own a licensed medical cannabis company. We specialized in caring for patients with many debilitating diseases. If you need help finding medicine in your country. I will assist you in that goal so it is 100% legal.