I am sure a lot of people have completed a lot of flushes. I stopped counting after I saw so much improvement. Now, I just flush twice a year for maintenance.
In the beginning, each flush was different. I remember (it's been 14 years now) that the 3rd/4th flushes being the flushes that had the oldest and darkest stones.
Now, I just see bright green sludge......
I can't answer your question about the medication, but it stands to reason that it could happen.
I would just be so glad you have seen so much improvement in your health.