Very insightful information! I didn't know that only half of the dosage was absorbed at a time....20mg dosages are misleading in this context. It reads, to me anyway, that 20mg is released consistently.

I'm actually happy about this confusion because I've always thought about stopping the meds altogether one day. It might not be too hard to get off this stuff with only a 10mg consistent dosage.

Thanks for the information and I'll let you know if I decide to try out the IR.

Btw, do you experience a night and day difference when the IR wears off? I ask this because my memory isn't the best in the world....so I'm afraid I might forget to take it if there isn't some sort of a reminder.