While I am not saying that this drug is definitely safe, I think the fact that Fen-phen turned out to be more dangerous doesn't really implicate these new drugs

While I am not saying that this drug is definitely safe, I think the fact that Fen-phen turned out to be more dangerous doesn't really implicate these new drugs because while the desired outcome is the same, the class and type of drugs seem to be entirely different. My understanding is that fen-phen is a stimulant and increased blood pressure and heart rate. It also includes some other drugs that affect serotonin levels. These new drugs are peptide analogs that affect your body's digestion and how it deals with sugar and fat production and insulin.