I have had severe case of PN June 9th that lasted for 5 months caused by taking Lipitor for more than 30 days. No doctors was able to help me so I resorted to self help. Based on what I've read through research, I took magnesium, Alpha Lipoic Acid, Zinc. My new primary doctor prescribed Ezetimibe and Vascepa for my cholesterol and I did treadmill at least 4 times a week 30-50 min. My LDL is now down from 146 to 111 and to this day 34 days now, I have not experience PN. I hope this help.