I am a 38 year old woman with a rheumatoid history. My diagnosis was changed to fibromyalgia five years ago and all my rheumatoid meds were stopped. Since that time my rheumatoid factor has climbed to 66 and I have permanent nerve damage to my arms, legs, hands and feet. I see a new rheumatologist next month to begin treatment again. My question is with a RF of 66 is mexotrexate a course of treatment I can expect?
Methotrexate side effect is vitamin b12 deficiency.vitb12 require to normal nerve conduction, maintenance, repair.  After long therapy of methotrexate. You can start new alternative Chat Doctor. ..........