Quoted from http://www.cbc.ca/news/health/story/2011/12/05/yasmin-birth-control-clot-risk.html
Yasmin, Yaz birth control pills may increase clot risks
CBC News
Posted: Dec 5, 2011 3:21 PM ET
Birth control risks3:40Birth control risks3:40
Birth control pills such as Yasmin and Yaz may be associated with up to three times the risk of blood clots compared with other oral contraceptives, according to a Health Canada review.
The department announced Monday that it has completed a safety review of oral contraceptives containing drospirenone, sold under the brand names Yasmin and Yaz.
"Overall, the body of current evidence suggests that the risk of blood clots is 1.5 to 3 times higher with oral contraceptives that contain drospirenone relative to those that contain levonorgestrel, a different hormone," Health Canada said in a release.
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