Oh, I am sorry to be late here. Its been a busy day!

The primary supplement for statin users is CoQ-10. The statins dramatically reduce this nutrient that we make for ourselves, and if it is not supplemented generously when the statins are used, then damage may result. This varies from person to person, but now that the secret (that Big Pharma kept for over a decade) is out.... CoQ-10 is a MUST.

We need to know more about your mother. How old, diet, and tests she has had.

CoQ-10 has to be given in a form that is absorbable. The aqueous forms cost more, but are more effective.
This is an example:
http://www.epic4health.com/noname.html
100mg a day of this may help...but it will be a slow thing.

Other issues may be present, so please supply more details about your mother. Testing for diabetes? Testing for B12 with result provided? PN is such a huge problem with so many triggers, that a simple answer is just not possible without more information.

The common drugs like gabapentin may reduce some symptoms but they do not heal you. My goals here are to help heal people from damage so they eventually won't need reliance on so many drugs.

Poor sleeping may indicate that B12 is low. B12 is a cofactor in the brain for melatonin, which is the sleep hormone. So anyone with long standing PN should get a B12 level done at the doctor's and post the numbers here. Doctors may say...."normal"...but lab ranges in US are very low and NOT normal. Hence report the results here so we can look at it.