Hi,
MTX is the most popular med for RA currently. It is used as an 'anchor' med too - ie the Dr will add on other meds, like the LLF you tired, SLZ or Hydro, Azathoprine and others. Sometimes the mtx will control the RA nicely, other times it will for a while and then begin to lessen. I'm afraid because RA is so unpredictable it is a metter of wait and see.....
Like you my rheumatoid is predominantly in my knees, hips and elbows. The mtx worked for two years alone and then things flared constantly so rheumy added Hydro, then SLZ.
One can choose to increase the mtx or/and add a 'friend'..you'll need to see your rheumy to discuss whic option is better for you.
Much love,
Amanda