While deep venous thromobotic (DVT) risk appears to be lower for transdermal forms used to treat vasomotor instability, the only contraceptive patch actually increases thromboembolic risk compared to oral forms. Obviously, the manufacturers have been working to develop newer versions of hormonal contraception in the hopes that risk of thromboembolic events would be lower.
However, as of last month, the Food & Drug Administration (FDA) was still trying to get a handle on drosperinone's risk for DVT. But even after publication in the British Medical Journal (BMJ) last week of a cohort study of 1,436,130 women on contraception followed for 8 years that concluded that the newer generation of progestins increases risk for DVT, the FDA had not yet reached a conclusion.overall (absolute) risk remains small.
Furthermore, don't forget that hormonal contraception has been associated with a lower risk of cancer, especially ovarian. In the end, the decision regarding which hormonal method to use should be an individual one made in conjunction with one's family physician after reviewing one's medical, surgical, family & social history. By the way, don't forget to use a condom to minimize risk of catching/giving STDs.