When I was prescribed life-long medication 10 years ago my GP very kindly gave me 3 months supply at a time, thus reducing the cost by 66%. My new GP will only give me 8 weeks. As I no longer have to pay it makes no difference financially, merely the slight inconvenience of having to reorder on a more frequent basis. The prescription charge does not go to the pharmacist but direct to NHS funds. The NHS pay the pharmacist per prescription, not quantity, so if I get tablets on a monthly basis he gets three fees, whereas if they were prescribed on a three monthly basis he would get only one. This has to be much cheaper from an NHS point of view.