Yosefy replied, asserting that since the patient had no other cardiac risk factor, the tear had to be due to phentermine. In support of his presumption that phentermine therapy can induce cardiac risk he cited only the PDR warnings for phentermine. In this reply we point out that a congenital biscupid valve should not be ignored as a cardiac risk factor, that aortic valve cusp tears have been associated with bicuspid valves but never with phentermine or with valve thickening no matter the etiology, and that there is no published data implicating phentermine as a cause of valve thickening (or any other valve pathology). Evidence of phentermine safety in the peer-reviewed medical literature is discussed in the context of the cardiovascular warnings for phentermine in the PDR.