Hi Bree09
I would be very leery if you said "it's us or the pills" and he ran right out to get clean. Addicts don't generally work that way unless it's combined with his rock bottom.
Craig Fergusen has a great joke that goes something like "the difference between someone who uses and someone who is addicted is that someone who uses will steal your purse and then feel really really bad the next day. An addict will steal your purse and then help you look for it".
You need to take care of yourself and you son. That is what you can do for your husband. Make sure you are not enabling your husband. If you husband has been addicted for 10 years that is a really long time and your entire family has developed behaviors that are now 2nd nature that act around the addiction. Get yourself and (son, depending on his age) to see a counselor or in AlAnon so that you can work on changing YOUR behaviors that supported the addiction (not that either of you are at fault, but it's a dynamic that is pervasive for the entire family). Your husband has to WANT to do this. And it's going to be hard. For everyone.
It can be done. Good Luck!