It's difficult with this being Labor Day weekend. Many pharmacies (if not all here in the US) will be closed on Monday. That's why it's so important to at least get Ron through until at least Tuesday. Needless to say, this is why he's so worried about making sure he has enough medication until then.
I too have been through this same situation before and understand his frustration. I hope somebody will be able to do something in the morning to at least get him through the next couple of days...