My Dad is on Nexavar for liver cancer for two months. He was prescribed it by his doctor. I know the medication originated from Spain. I call 1-866-639-2827 when there is a question. This number is the nurse hotline for people on Nexavar. They may be able tp help you. Also the cost is approx.5,000$ if your insurance does not help with it. Good luck and I wish you the best.