I have been taking a prescription medication manufactured by Pfizer. It is Procardia xl 30mg brand name. I have been using this medication for 30 years so just can't stop it without serious problems. I cannot take the generic equivalent. I was informed last week that this medication was unavailable. I called Pfizer and asked them when it would be available. They had no information. I emailed the CEO with no response. They did this to me over a year ago. Pfizer keeps playing and jeopardizing my health and life.