Chemotherapy drugs aren't just used for chemotherapy though, they have various uses in different doses. Drugs for rhumatoid arthritis are the same as some used for chemotherapy but in a much lower dose.
When I first read up about some of the drugs for arthritis I had a similar reaction until I read into it more thoroughly.
I think (only from what I've read quickly) it's usually a suppressant thing, stopping disease progression or maybe, in your condition, overproduction of cells (?) causing the problem - like in inflammatory arthritis as it's caused by an overreacting immune system it dampens the response.
Any strong drugs can have their problems but it's matter of balance, potential side effects v. beneficial effect on the condition.
I'm sure sqad will be along with a far more informed view.



