Far fewer people will be using "phen-fen" for weight loss
Far fewer people will be using "phen-fen" for weight loss.
The combo has never been officially approved...now the FDA is discouraging its use. They're concerned about the recent reports of valvular heart disease in patients taking phen-fen.
Similar problems show up in patients with carcinoid syndrome or ergotamine toxicity. This makes researchers suspect that serotonin might be the culprit. But they don't know if it's due to the phentermine...the fenfluramine...or the combination.