Study Confirms the Dangers of Yaz®, Yasmin®, and Ocella®

Schlichter Bogard & Denton

All birth control pills carry some risk of causing blood clots. However, recent studies have shown that Yaz, Yasmin, and Ocella may carry a higher risk of causing blood clots than other birth control pills. Birth control pills contain two types of hormones, estrogen and progestin. It is drospirenone, the progestin in Yaz, Yasmin, and Ocella, that researchers believe is to blame for the increased incidence of blood clots that occurs with those pills. The new study found that women who use birth control pills containing drospirenone are at least twice as likely to suffer from blood clots as women that use birth control pills that contain levonorgestrel, a different type of progestin. The study is available here: British Medical Journal.

This study confirms previous concerns about these pills. In April 2011, the British Medical Journal published two studies that also found that Yaz, Yasmin, and Ocellla users suffer more blood clots that women who use other types of birth control pills. The new study was a large-scale study designed to confirm these previous findings.

The authors of these studies have concluded that Yaz, Yasmin, and Ocella are "not as safe" as other birth control pills, and "should not be the first choice in oral contraception." Furthermore, the authors found that "no clear evidence exists to show that the drospirenone pill confers benefits above those of other oral contraceptives in preventing pregnancy, treating acne, alleviating premenstrual syndrome, or avoiding weight gain." In other words, the researchers found that Yaz, Yasmin, and Ocella do not provide any benefits that other, safer, birth control pills do not have, and there is no medical reason to use Yaz, Yasmin, or Ocella instead of a safer birth control pill.