I've been taking it for years, and unfortunately don't remember exactly how I ramped up...
I currently take it 2x per day - once in the morning, once in the evening. I don't think I've ever actually needed to take it 3x per day, but maybe you'll find that you need to. Definitely start slow - take it 1x per day, maybe see how you do for a week or so, then go up to 2x per day if needed.