FDA says testosterone products can cause blood clots.

NBC Nightly News (6/20, story 7, 2:30, Williams) reported that the FDA has “issued a new warning about the risk of life-threatening side effects from” prescription testosterone treatments.

        The Boston Globe (6/20, Kotz) reports that the agency “has told manufacturers of” these products “that they need to add a warning on their drug label about an increased risk of blood clots in the veins.” While “the FDA previously had warned that such clots could occur in certain patients who developed an abnormal increase in the number of red blood cells...the agency has recently received numerous reports of such clots” occurring in individuals who do not “have this complication.”

        Also covering the story are Reuters (6/21), the NBC News (6/21, Fox) website, Medscape (6/21, Lowes),MedPage Today (6/21), and HealthDay (6/21, Mundell).