My Sister Is Diagnosed With High Uris Acid In Pakistan.

My sister is diagnosed with high Uris acid in Pakistan. I do not know for sure the level, but it is not very high. Her Dr. Has proscribed " febuxostat" medication. She does not have any symptoms. This was a routine blood check up. She already have high liver enzymes because of sarcoidosis treatment about 2 Years ago. Currently her sarcoidosis is controlled and she is not on any medications except high blood pressure and cholesterol. She is 66 year old and is very careful about her diet. She walks 6 days a week and swims and exercise often. She has always been health and exercise conscious.
Thanks