The FDA approved the anti nausea Phenegran for migraine use, even for injecting in extreme circumstances. The patient was injected intravenously, and packaging warned that if it hit an artery, gangrene or amputation could be possible.
It happened to the patient, who sued Wyeth, successfully, even though the FDA gave it's approval.
Bush appointees wanted Federal law to supersede state law; the ruling indicated by the Supreme Court's 6-3 showed otherwise.
Apparently, Wall Street is now worried that patients, (not all whose arms get amputated) will cause distress for the drug companies, because they can't now hide behind the shield of the FDA.
It will keep the lawyers busy!