Fen-phen is the diet craze that wound up doing harm to numerous people and resulted in one of the largest class action lawsuits ever against a pharmaceutical company. The symptoms related to taking fen-phen are PPH or primary pulmonary hypertension. This condition is a serious, sometimes fatal, condition that can lead to heart failure. The fen-phen lawsuit alleged that the makers knew that there had been legitimate concerns surrounding the drug and yet they failed to investigate those claims. In 1997, the FDA ordered the drug combination removed from the market, after learning that thirty percent of the people who had taken the drug combination were now showing up with abnormal echograms. Product liability lawsuits naturally ensued, costing the manufacturer and the distributer over $14 billion dollars. Fen-phen lawyers were able to successfully argue that the retail sites where it was sold should have removed the product from their shelves. Patients with abnormal echograms who have a history of taking fen-phen can still contact an attorney to see what remedies are available to them as result of the class action lawsuits and ensuing settlement.