Thanks for the tag Clash. Despite the side effects listed I would probably say Methotrexate injections was the medicine that gave me the least side effects. I had trouble doing methotrexate orally with really bad flu like side effects that can happen as a result of the digestion but when you inject you skip that process. Actually, I think I was on methotrexate the longest too.
I did the injections myself in the top of the thigh with a very small needle once a week. I would occasionally get headaches the night of but it was nothing that couldn't be fixed with tylenol or similar. I did however get night sweats a few times, and from what I've heard it can be caused from methotrexate. Its not really a bad thing, just an inconvenience. It didn't happen very often though.
Hmm, I believe you're supposed to get monthly blood work while taking it but for some reason my doctor didn't make me do that. Luckily I was safe, but definitely talk to your doctor about that.
Are you planning on doing the shot for your son? I promise you it's a small needle, and I even have a fear of needles and I did it myself. It didn't hurt at all.
All in all, if I had to go on medicine right now, I would definitely do methotrexate injections before the others again. Remicade/humira did nothing for me. Methotrexate is classified as a chemotherapy drug because it is used for cancer patients in higher doses but don't let the side effects scare you. Everything had side effects, even simple pain relievers.
Your son will more than likely be closely monitored while on it so if anything starts to happen he will be taken off immediately. Please let me know if you have any questions