Anonymous wrote:For those PP posting about heart problems, I presume you are confusing "phenpro" with "fen-phen," which was a fad some years back and got a lot of bad press due to some health issues it caused. The "phen" in both of them refers to phentermine, an appetite suppressant, but if taken under the advice of a dr and so long as you don't have a specific medical condition that would prevent you from taking it, phentermine is perfectly fine to take. The "pro" in phenpro, which is what people are discussing here, is short for prozac, an anti-depressant, which apparently makes the appetite-suppressing component of phentermine work for longer than it would if you took phentermine alone (which wears off after a few weeks). It was the "fen" in "fen-phen" that got a bad rap. The "fen" is short for fenfluramine and it, along with its sister drug, dexfenfluramine, were pulled off the market because of heart problems.
Phentermine on its own also carries a risk of the same heart problems (heart valve, primary pulmonary hypertension) that were caused by fen-phen:
This drug may rarely cause serious (sometimes fatal) lung or heart problems (pulmonary hypertension, heart valve problems). The risk increases with longer use of this medication and use of this drug along with other appetite-suppressant drugs/herbal products. If you notice any of the following unlikely but very serious side effects, stop taking this medication and consult your doctor or pharmacist right away: chest pain, difficulty breathing with exercise, decreased ability to exercise, fainting, swelling of the legs/ankles/feet.