@charlie5454s You might want to ask your transplant center if they are aware of this dilemma you face. Perhaps they are not. Perhaps something changed and you never got any notice. It has happened before!

Have you spoken to your GP and get his input for working with you on the Allopurinol? I have been on it for over 10 years due to gout issues, also. But, I still watch my diet carefully. It has been years since anyone checked my uric acid level, so I had to insist on a face-to-face with my GP this December to get certain testing done!
Ginger