I have taken a BComplex for many years, with my doctors full knowledge and consent.

I would check with your physician before adding a supplement.

On edit, I want to add that I take the BComplex on the recommendation of my long time chiropractor/homeopath who diagnosed me as extremely deficient during a very stressful time in my life.

My husband had died unexpectedly and I was dealing with something else, as well. He told me the B vitamins are critical, that they keep our organs functioning and working well together.

But for the mpn, I am very healthy, and largely credit this chiropractor for that.