Featured Research

from universities, journals, and other organizations

Newer oral contraceptive as safe for gall bladder as older birth-control pills, study suggests

Date:
April 26, 2011
Source:
University of British Columbia
Summary:
Drospirenone, the top-selling oral contraceptive marketed as Yaz or Yasmin in the US and Canada, doesn't carry any more risk of gall bladder disease than the older generation of birth control pills, despite claims by some consumers and lawyers in both countries, according to a new study.

Drospirenone, the top-selling oral contraceptive marketed as Yaz or Yasmin in the U.S. and Canada, doesn't carry any more risk of gall bladder disease than the older generation of birth control pills, despite claims by some consumers and lawyers in both countries, according to a new study by University of British Columbia and Vancouver Coastal Health Research Institute researcher Mahyar Etminan.

In the study, published today in the CMAJ (Canadian Medical Association Journal), Etminan and colleagues from McGill University and the University of Florida analyzed a database of health records for 2.7 million U.S. women using oral contraceptives over 18 months. He sought to determine whether there was a higher rate of gall bladder surgery or hospital admission for gall bladder disease among women using the relatively new drospirenone, compared to levonorgestrel, the oldest and historically most-prescribed oral contraceptive.

All oral contraceptive drugs carry a small increased risk of gall bladder disease; recent lawsuits allege dropsirenone's risk is greater than the others. Other allegations leveled against the drug by patients and lawyers include harmful effects on the heart and an increased risk of blood clots. This was the first published study to compare the gall bladder risks of the various birth control pills.

While the analysis found a small, statistically significant increased risk of gall bladder disease among users of dropsirenone -- as well as two other traditional oral contraceptives -- it is not great enough to be deemed clinically relevant or a cause for concern compared to levonorgestrel, says Etminan, a drug safety expert.

"There have been concerns about various risks of dropsirenone raised by consumers and their lawyers that have been covered by the news media, and which may in turn affect the decisions of physicians and their patients," says Etminan, a pharmacoepidemiologist at the Centre for Clinical Epidemiology & Evaluation at Vancouver Coastal Health Research Institute and an assistant professor in the Dept. of Medicine at UBC.

"This study should give women some reassurance that the drug is as safe as other contraceptives at least with regard to gall bladder disease, and women should weigh this against the increased risk of pregnancy that occurs when switching to another contraceptive drug," says Etminan.


Story Source:

The above story is based on materials provided by University of British Columbia. Note: Materials may be edited for content and length.


Journal Reference:

  1. Mahyar Etminan, Joseph A.C. Delaney, Brian Bressler, James M. Brophy. Oral contraceptives and the risk of gallbladder disease: a comparative safety study. CMAJ, April 18, 2011 DOI: 10.1503 /cmaj.110161

Cite This Page:

University of British Columbia. "Newer oral contraceptive as safe for gall bladder as older birth-control pills, study suggests." ScienceDaily. ScienceDaily, 26 April 2011. <www.sciencedaily.com/releases/2011/04/110418122309.htm>.
University of British Columbia. (2011, April 26). Newer oral contraceptive as safe for gall bladder as older birth-control pills, study suggests. ScienceDaily. Retrieved April 24, 2014 from www.sciencedaily.com/releases/2011/04/110418122309.htm
University of British Columbia. "Newer oral contraceptive as safe for gall bladder as older birth-control pills, study suggests." ScienceDaily. www.sciencedaily.com/releases/2011/04/110418122309.htm (accessed April 24, 2014).

Share This



More Health & Medicine News

Thursday, April 24, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Big Pharma Braces for M&A Wave

Big Pharma Braces for M&A Wave

Reuters - Business Video Online (Apr. 22, 2014) Big pharma on the move as Novartis boss, Joe Jimenez, tells Reuters about plans to transform his company via an asset exchange with GSK, and Astra Zeneca shares surge on speculation that Pfizer is looking for a takeover. Joanna Partridge reports. Video provided by Reuters
Powered by NewsLook.com
Study Says Most Crime Not Linked To Mental Illness

Study Says Most Crime Not Linked To Mental Illness

Newsy (Apr. 22, 2014) A new study finds most crimes committed by people with mental illness are not caused by symptoms of their illness or disorder. Video provided by Newsy
Powered by NewsLook.com
Hagel Gets Preview of New High-Tech Projects

Hagel Gets Preview of New High-Tech Projects

AP (Apr. 22, 2014) Defense Secretary Chuck Hagel is given hands-on demonstrations Tuesday of some of the newest research from DARPA _ the military's Defense Advanced Research Projects Agency program. (April 22) Video provided by AP
Powered by NewsLook.com
How Smaller Plates And Cutlery Could Make You Feel Fuller

How Smaller Plates And Cutlery Could Make You Feel Fuller

Newsy (Apr. 22, 2014) NBC's "Today" conducted an experiment to see if changing the size of plates and utensils affects the amount individuals eat. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins