No, you are exactly correct and that is exactly my point. There simply isn't enough medication prescribed to last 30 or even 28 days, hence the negative screen. Which I knew, but the office apparently can't do the math.
The narcotic stays in your system for up to a week when at that dose. If you take one every six hrs and 2 at bedtime, at most, you'd need 115 - 5 per day. 1 at 6am, 1 at 12, 1 at 6pm, 2 at midnight. Being 3 short wouldn't make your urine screen negative. Do you take the meds as durected? Sorry you're having trouble.