I am sure this has been cover but here goes.....I want to have more than a 30 day supply of warfarin on hand but due to my pharmacy and insurance have not been able to do so....I needed a refill so when I went for my PT this week I told them I need a new script and asked if they would write it for 10mg instead of 5mg....they agreed and now a month supply is really 60 days when I break them in half........Does anyone else do this?