It depends on the individuals sensitivity to the drug. There are no firm fast answers. It took me 5 years to get a dosing that works reasonably well for me. All anyone can do for you is give a starting point. Welcome to the world of Diamox.
Google Dr. Peter Hackett...he's the go to guy on high elevation medicine. I do not know the current it works for most dosing schedule but this is the place to get it...not your doctor.
