Just wondered as apparently I've been informed it is every 6mths. First I had heard of these when I was diagnosed with PBC Dec 2010 as prior had kept away from doctors and urso was the first repeat script I had ever really had. I think 6mths is a bit much in my case as I have bloods currently at a 3mths interval at the GP so one would think that at the time the doctor scans over the results he would automatically know regards the medication.
Just seeing the GP at 12mths intervals as cazzi says on another question answer (see the one about 'how much urso are you prescribed') to me if there are no in-between problems would in my opinion maybe better for some of us. I'm of the mind that if everything seems ok and I feel ok as have presently for a few mths (despite Feb bloods being a very slight rise on the previous 4mths but nothing untoward), then reducing certain doctor visits would surely help one get on better at living life?