They make twelve hour extended release versions now. There are twelve per box and you can get three boxes at a time. That's 18 days but only if you take them tw

They make twelve hour extended release versions now. There are twelve per box and you can get three boxes at a time. That's 18 days but only if you take them twice a day, which you probably shouldn't if you like sleeping. If you take one a day, that's a whole month's worth.