I researched it too and found that Rosuvastatin was the least likely stain to influence PN. Since I developed PN from other statins I have been hesitant. However, I switched to 10 mg of Rosuvastatin for 40 days daily (down from 20 mg of Simvastin). Then I changed to every other day on Day 41 because I read that Rosuvastatin has a extended time of 14-17 hours. But I added Niacin everyday. I went in for a LDL test after my 50% reduction in Rosuvastatin and my LDL was 73. When I was on a daily Rosuvastatin it was 72. I am going to try 5 mg every other day with niacin day. Will let you know in a month how it went.