I had this issue several times. The MD gave me x drug and followin it I had to refill it the phamicist felt it was to early and argued it was for vics 5/500 2 every 4 hours 40 total well the would be a weeks worth I woul not to run otu so they told me (Osco) you may refill a med controlled or other wise 3-5 days (depending oninsurance) I take previcid 1 day 30 day supply the ins. co oked it at 5 days but not at 6 days ( I wanted to get while I just got paid) PRN meds are more touchy they again go by the 24 hour clock 3-5 days is the norm but if it is a 4-5 day supply the phamicist will make you wait until the math works out this is dased on my expirance with the Osco chain
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Ask and it will be given to you Matthew 7:7