caution against using Pondimin with serotonergic drugs
The new labeling will also caution against using Pondimin with serotonergic drugs such as Prozac.
There's a chance the combination will have additive effects and increase serotonin levels.
In severe cases, too much serotonin can trigger "serotonin syndrome"...a life-threatening emergency. This seems to be a much bigger problem than realized...it's often not recognized.