Ventolin HFA
"Right now, I am waiting for my doctor to renew my prescription so I can get my medication.  The inhaler I am currently using shows it has 122 puffs left, and its empty.  This isn't the first time I've had one of these go dry before its used up.  Now, without an inhaler, I have to hope that the doctor on Monday will send in the renewal.  Fortunately, unless the pharmacy will provide a new inhaler to compensate for the defective one, I am out the money that was paid for it.  Oh, it does work, when it has medication in it."