I have studied your case with diligence.
Yes you can take instaflex but it may not be sufficient for rheumatoid arthritis
NSAIDs, DMARDs (disease-modifying anti-rheumatic drugs) are sometimes prescribed in more severe cases.
There is good role of diet and achieve correction through it,for details you can directly contact on my profile
Hope this answers your query. If you have additional questions or follow up queries then please do not hesitate in writing to us. I will be happy to answer your queries.
Wishing you good health.