You see, I’m a practicing pharmacist and my most frequent contact with CFC’s was in the propellant for aerosol canisters for asthmatics. I dispense a lot of these. Probably a couple of dozen each day. Over the last decade I’ve watched the price of these medications drop steadily, until they seemed fairly reasonable. (about $10 per canister). But then drug manufactures were forced to switch propellants. Suddenly the price for these went up to about $40 each. Oh, and the new ones don’t work as well.
Can you prove causality rather then correlation? The price could have gone up for any number of reasons not stimply because of propellant change to HCFC and HFC.
