Should I stop taking fen-phen, fenfluramine or dexfenfluramine right now?
A. Yes, this is the FDA’s recommendation. Although we believe these drugs can be stopped at once for most persons, you should consult your physician about whether he/she advises you to taper the dosage over, for example, a 1 to 2 week period. The manufacturers of these drugs are withdrawing fenfluramine and dexfenfluramine from the marketplace, effective September 15, as the concerns about the effects of these drugs on heart valves continue to grow. The drugs will no longer be available in pharmacies. Though the potential long-term medical implications are not known at this time as there are still a number of unanswered questions, the FDA and the manufacturers believe it is in the best interest of the patients that they stop taking these medications. Please be aware that at present this recommendation does not apply to phentermine taken alone.
