Something else that I had found from the research on possible compounds and chemicals which have some ability to cure arthritis, both rheumatoid and psoriatic, goes by the name Gilimumab aka Simponi.

1. Golimumab for the Treatment of Rheumatoid Arthritis After the Failure of Previous Disease-Modifying Antirheumatic Drugs: A NICE Single Technology Appraisal.
2. Golimumab for the treatment of psoriatic arthritis: a NICE single technology appraisal.
3. Golimumab for the treatment of psoriatic arthritis.
4. Golimumab for the treatment of ankylosing spondylitis: a NICE single technology appraisal

There is evidence that this drug created in the lab helps in reducing the symptoms of arthritis, but it may not be the most cost effective way of treating it.

As for whether it can lead to increased height, the effects of it would be minimal. Any effects would be from the increased lubrication between the bone ends.