My doctor prescribed folic acid to go with methotrexate because of my fear of hair loss. You can see if your doctor thinks that will help.
Yes methotrexate can depending on the dosage. Typically for Lupus, it's a smaller dose and they gave me folic acid for it just in case.
I do not know , my hair thinning begin before diagnoses or treatment It was one of initial indicators that something was wrong