from Mother Jones:
If you or someone you know has asthma, you've probably noticed that the price of inhalers has jumped—from as little as $5 a few years ago to as much as $60 today. How'd that happen? The answer is a case study in how drug companies turned a well-meaning environmental regulation into an opportunity to suck billions from consumers.
PHARMA'S BIG PROBLEM In 1987, as part of an international treaty known as the Montreal Protocol, 26 nations agreed to phase out ozone-depleting chlorofluorocarbons. That could have been bad news for pharmaceutical manufacturers, which used CFCs as propellants in their asthma inhalers.
THE BRILLIANT SOLUTION Yet pharmaceutical companies, worried about the emergence of generic competition, soon spied an opening. If they could create and patent a new variety of CFC-free inhalers, securing the exclusive rights to sell them, they could force off-brand competitors out of the market and jack up prices. In 1989, Glaxo Wellcome and seven other (PDF) pharmaceutical firms formed the International Pharmaceutical Aerosol Consortium (IPAC) to come up with a new ozone-friendly product. By 1997, the first CFC-free inhalers hit pharmacy shelves.
PHARMA'S NEXT BIG PROBLEM The drug companies claimed to have spent more than $1 billion on this transition, so they weren't happy when scientists raised concerns about hydrofluorocarbons (HFCs), the group of gases used in the new inhalers. These propellants don't harm the ozone layer, but they are powerful greenhouse gases that contribute to climate change. In light of this, several researchers and one generic drug company argued that phasing out the old CFC-based inhalers didn't make environmental sense—especially given the higher prices asthma patients would have to pay for their medicine. .............(more)
The complete piece is at:
http://motherjones.com/environment/2011/07/cost-increase-asthma-inhalers-expensive