What do the letters CR on a medication box mean?

Question

I know it means controlled-release but I have no idea what that is.

Answer 1

i'm pretty sure it's continuous release and it means that instead of sending all of the med all at once into your system, it slowly sends small amounts out over a longer period of time, but i've got no idea how it works. . . .

Answer 2

It means it doesn't hit you all at once. The pill or whatever "breaks" down over time. Kind of like it "works" throughout the day.

Answer 3

it means the medication doesn't go into your system in one shot.  usually the tablet is designed to dissolve very slowly so that you get a consistent level over a period of time.