The FDA is requiring manufacturers to include a general warning in the drug labeling of all approved testosterone products about the risk of blood clots in the veins. Blood clots in the veins, also known as venous thromboembolism (VTE), include deep vein thrombosis (DVT) and pulmonary embolism (PE). The risk of venous blood clots is already included in the labeling of testosterone products as a possible consequence of polycythemia, an abnormal increase in the number of red blood cells that sometimes occurs with testosterone treatment.
Because there have been post-market reports of venous blood clots unrelated to polycythemia, the FDA is requiring a change to drug labeling of all testosterone products to provide a more general warning regarding venous blood clots and to ensure this risk is described consistently in the labeling of all approved testosterone products.
Because these clots occur in the veins, this new warning is not related to the FDA’s ongoing evaluation of the possible risk of stroke, heart attack, and death in patients taking testosterone products. The FDA is currently evaluating the potential risk of these cardiovascular events, which are related to blood clots in the arteries.
Testosterone products are FDA-approved for use in men who lack or have low testosterone levels in conjunction with an associated medical condition. Examples of these conditions include failure of the testicles to produce testosterone for reasons such as genetic problems or chemotherapy.
See the FDA Announcement
See also Medical Risk Law, December 2013 Report: Thicker Than Water: Liability When Blood Clots Cause Injury or Death
See also Medical Risk Law, May 2013 Report: Drugs, Dosage, and Damage: Physician Liability for Prescribing or Administering Medication
See also Medical Risk Law, November 2013 Report: Diagnosis and Treatment of Heart Attacks: Liability Issues