Thanks Clare, i got a private prescription last week for 100 tablets, as a prescription for 25 on the PBS "all you are allowed" would only last a week. It was weird cos the 25 tab prescription cost $13 "on PBS" and the 100 tab prescription only cost $18 "non PBS", she said sometimes it is cheaper to have a prescription that isn't covered by the PBS....i will always ring ahead from now on.