I was born with mild Gilbert's (or Dubin-Johnson's...or any of the other 4 plus names for the same thing). My skin has been slightly yellowish since childhood. I have been on the MP for one year (i.e., on minocycline, etc). When I started the MP one of my liver enzymes was slightly elevated. After about 4 months of starting the MP --and since-- all liver function tests have been normal. (Note that the MP uses half the minimum Rx dose of minocycline at half the usually prescribed frequency.) Hope this info helps.
* We can help you understand chronic disease, but only your physician is licensed to give you medical care *