Thanks for posting your query.
Drugs , your mother are taking for rheumatoid arthritis
are disease modifying antirheumatoid drugs (DMARDs) and steroids
Folitrax is Folic acid
antagonist and a good disease modifing drug and folvite is folic acid which is given to counteract the deficiency.
These drugs are proper and you must take drugs regularly under guidence of your doctor and get periodic check up and blood test
Wishing you good health
Dr Saurabh Gupta