Guess since you are on 80mg (what's pill split mean? half a pill?? or skip days, maybe) your levels must have been much higher than mine. My levels all within range and guessing it is the high bp and dizzy spells, with couple of mini-strokes we think, that has prompted the pills. Will check that thought with doc.
LOL on googling how long mine stays in body i got your result. When i see dr in about two weeks again i'll ask him re skipping etc.