"Confusion over medication"

I was put on Warfarin. My regular dose is 5mg and, until recently, I just had to take one pink 5mg tablet. Due to concerns about confusing the 0. 5mg [white] tablet with the 5mg [pink] tablet they have BOTH been withdrawn and I now have to take 3 tablets daily [one 3mg and two 1mg] instead of one. I have contacted the NHS Anglia Commissioning Support Unit who are now responsible for this policy which my GP practice is following but have come up against a brick wall of intransigence. I have suggested that if the 0. 5mg tablet alone was withdrawn and the 5mg tablet reinstated then there is NO POSSIBILITY of confusion or mis-prescribing. It seems to me that they have made a decision and are not prepared to review it with, what I would call, a modicum of common sense. I feel they are also going against the recommendations of the NHS Patient Safety Agency Patient Safety Alert 18 which says in section 8 that to promote safer use prescriptions should "use the least number of tablets each day".