Interesting.
I’m taking niacin because every statin on the market gives me muscle aches (the liver damage warning symptom).
Niacin is significantly less “toxic” to liver than statins and should be safe for most people, without precaution, in doses less than 3g.
However, individuals taking large doses might “err on the side of safety” and consider taking or eating some thistle family products or foods, to help the liver do its job, since it may not be the only “toxin” they consume during the day.
The liver pathology is separate and distinct from the muscle pathology.
A drug handbook said at 6 - 12 weeks for 6 months, then periodically.