Georgie's Boxer sister Coco may have Cushings disease

She is 12 1/2 and we know that with age health issues come. She has all the symptoms for it. My husband and I adore her and are so sad. The vet said there is medications for it. We didn't go into the details as she wanted to run some blood work just to confirm. Has anyone had experience with it? I read it's most common in Boxers, Yorkies and a few other breeds. Thanks in advance!