Herceptin and weight gain

Herceptin can cause peripheral edema--ankles, feet, wrists and hands look a little puffier than normal --carrying around a little extra water everywhere is like carrying around several liter sizes of sodapop. They quickly add up to a lot of weight! Are your rings feeling tighter? If this description fits your weight gain, then the excess weight (from water retention) should probably come off quickly and easily once herceptin is stopped.