Hi Tills!
Definitely have to agree about the balance bit!
How long were you on 20mg and how long have you been on 15mg? It does seem, from what others who have been involved with this forum much longer than I have, that sometimes it takes a few weeks to adjust to the drop and certainly, where there are niggles, a period of using the old and new doses alternately may help to smooth out the transfer.
I spent most of today surfing the web (the weather has been disgusting at altitude with high winds of 40mph plus and no sun coupled with temps of -16C!) and found several interesting publications. One had the following instructions for switching to alternate day therapy from a single daily dose therapy:
\"When switching to ADT begin by modestly reducing the 2nd day's dose and adding it to the 1st day's dose. This maintains the same total dose. If the daily dose is greater than 40mg, reduce the dose on the second day by 10mg and if the dose on the 2nd day is less than 40mg reduce by 5mg. Once a dose of 20 mg is reached the increment should be 2.5mg. The interval between changes in dose is determined empirically, based on the patient's clinical status. Endpoint is when the previous entire 2 day dose is being given every other day.\" (Primary Care Medicine:Office evaluation and management of the adult patient. Govvall and Murray, 2009)
This suggests to me that, even without an attempt at this level to change to ADT, you might in fact have been better with a 2.5mg per day reduction when you started to cut down, sticking to 17.5mg every day until you were sure you were stable with no niggles before trying to go down again. Others on this forum (and my GP) also suggested a week or so of, for example, 20/17.5/20/17.5 and so on before going to 17.5 every day is also helpful in the adjustment.
Once you have started on steroid treatment at this level, there is almost certain to be some adrenal suppression so a very gradual reduction is needed for two reasons: for one thing to stop the flares of the PMR and for another to prevent the body suffering a reaction from the steroid withdrawal being too fast. Since some of the symptoms are the same it is difficult for anyone to know exactly which reason it is that is giving you the weakness/fatigue/sore muscles etc!
Another comment was that \"after as little as 2-4 weeks of 20-30mg prednisolone daily, patients should be advised to supplement steroid intake when under stress or experiencing an acute illness\". So if you are in the process of reducing and you have a long journey, a particularly stressful experience in the family or at work or a cold (or worse), then you need to consider upping the dose briefly to allow for that.
I have found reducing not too bad so far as long as I take very careful note of what my body is telling me. If I have a couple of bad days, I either take it easy for a day or two or (if that's not an option) add a mg or two to the dose for a couple of days and then go back down to where I was before. It hasn't failed yet!
The concensus seems to be that once you get down to a \"physiological dose\", and that is regarded as the equivalent of about 10mg/day (only half of the dose you take is available to the body which would normally secrete 5 to 7.5 mg of cortisol), although there is still some adrenal suppression, the side-effects are minimal for most people and I guess that is where we should be happy to be and then work on further reduction at a very gentle pace.
good luck with your appointment :-)
Eileen