Speaking of chemotherapy, my neurologist and rheumatologist (one manages my MS, the other my RA) got together and worked out a combination medication that I've been on for about a year and a half now. And it's going really good, all things considered. No pain with RA, and no "new" symptoms with MS, so that's a benefit.
When I go to the hospital every 6 months for the infusion, it's flagged as chemotherapy on my billing statement.
The medication in question is called Rituximab. The down side is it's expensive. I was paying $1k for every infusion, which is way too high for my liking. So I found a co-pay assist program for it. Now my bill is only around $25-30 every infusion, which is MUCH more reasonable.
EDIT: Oh yeah, the bill before insurance gets it is around $51k, so they're a least cutting it down substantially before copay assist.
I'm on a different drug that I take a pill every day for. In addition to MS & RA, I also have a blood disorder called Factor V Leiden, which is kind of an inverse to hemophilia. I've actually had around 12 clots so far. I know what they feel like, and I'm real good at taking care of them the moment I can feel one appear. Anyway, I'm now on one of the new style blood-thinners, because I wasn't all about taking coumadin for the rest of my life. It's too "iffy", and I'm not all about a guaranteed blood embolism just by taking it for a long time. The more modern day blood thinners are substantially better. Now a single daily pill will take anyone (regardless of weight) to a proper INR needed to prevent blood clots. What's even better about this medication is there is an anti-agent, where if you take 1 dose of this anti-agent, the thinning completely vanishes. That's very helpful in the event of internal injuries or something where having additional bleeding is detrimental.
Anyway, what I was going to say before explaining all that is this new thinner gives me a $30 copay for every month of pills. So if I get a 3-month supply, that's a quick $90 bill. The copay assist for this medication gives me a $10 flat fee regardless of supply. So 1-3 months will each cost a total of $10. That's much more to my liking.