Women's Health
Resources
Basic InformationLatest News
Lots of Sugary Drinks Doubles Younger Women's Colon Cancer Risk: StudyHeart Risk Factors Show Up Earlier in U.S. Black WomenBetter Access to Birth Control Boosts School Graduation RatesA Vitamin Could Be Key to Women's Pain After Knee ReplacementFreezing Tumors Could Be New Treatment for Low-Risk Breast CancersGiving Birth During the Pandemic? Facts You Need to KnowDo Your Genes Set You Up for Hot Flashes?Common Complication of Pregnancy Tied to Higher Stroke Risk LaterMigraine Before Menopause Could Be Linked to High Blood Pressure LaterA Woman's Weight Might Affect Her Odds for MiscarriageBreast Cancer Over 70: How Much Treatment Is Enough?Nurses Are Dying From Suicide at Higher RatesUrinary Incontinence Surgery Won't Raise a Woman's Cancer RiskOvarian Cancer Diagnosis Can Take Big Toll on Women's Mental HealthObesity May Help Trigger Heavier Periods: StudyWomen More Prone to Concussion's Long-Term Harms: StudyMammogram Rates Have Rebounded Since Pandemic Began, But Concerns RemainHeart Disease Gaining on Cancer as Leading Cause of Death in Young WomenWhat Is Endometriosis, and How Is It Treated?OCD May Be More Common in New Moms Than ThoughtAn IUD Could Ward Off Endometrial Cancer in Women at RiskEven a Little Coffee in Pregnancy Could Impact Newborn's Weight: StudyDrug Boosts Survival for Women With Advanced Ovarian CancerPostpartum Bleeding Doesn't Have to Mean Hysterectomy, Experts SayPandemic Has Pregnant Women 'Really Stressed,' Survey ShowsMany U.S. Mammography Centers Aren't Following Expert Guidelines: ReportBlack Women More Prone to Postmenopausal Weight Gain Than White WomenMost Women Can Give Birth Naturally Even When Water Breaks Early: StudyCommon Household Chemicals Tied to Preemie BirthsLockdowns Tougher on Women, and Housework Is Big Reason WhyTHC From Pot Lingers in Breast Milk for Weeks: StudyBreastfeeding Moms Get Mixed Messages When Baby Has an AllergyHigh Blood Pressure in Pregnancy Is Linked to Shorter Life Spans for WomenDevice Used for Thousands of Years Eases Major Cause of Female Urinary ProblemsLots of Belly Fat at Menopause Could Boost Heart RisksA Vaccine Against UTIs? New Mouse Study Brings Shot CloserWomen With Type 1 Diabetes May Have Fewer Childbearing Years: StudyMany Women Getting Wrong Antibiotics to Treat a UTI: StudyHigh Blood Pressure in Pregnancy Could Affect Women's Hearts Long TermSwitch to Plant-Based Diet Could Protect Older Women's Brains3D Mammograms Best at Spotting Tumors, But Many Black Women Missing OutNew Drug Combo Could Be Advance Against Uterine FibroidsUrinary Incontinence a Common Issue for Older Women, But Treatments Can HelpMore Young U.S. Women Are Dying From Heart DiseaseIs Any Amount of Coffee Safe for Baby During Pregnancy?COVID Vaccine Reaction Can Mimic Breast Cancer Symptoms, But Doctors Say 'Don't Panic'Prescription Opioids, Antibiotics in Pregnancy Won't Raise Birth Defect Risk: StudiesAHA News: Why Black Women Are Less Likely to Survive Pregnancy, and What's Being Done About ItAfter Long Decline, Breast Cancers in Young U.S. Women Are On the RiseDiabetes While Pregnant Ups Odds for Heart Disease Later
Questions and AnswersVideosLinksBook ReviewsSelf-Help Groups
Related Topics

Medical Disorders
Wellness and Personal Development
Mental Disorders

Antibiotics Might Lower Effectiveness of Birth Control Pill

HealthDay News
by By E.J. Mundell
HealthDay Reporter
Updated: Aug 19th 2020

new article illustration

WEDNESDAY, Aug. 19, 2020 (HealthDay News) -- Doctors have long suspected it, but a comprehensive new study provides more evidence that antibiotics can reduce the effectiveness of birth control pills.

That means women who are using both types of drugs at once should take extra precautions to avoid an unintended pregnancy, the study's British authors say.

The study couldn't prove cause and effect. However, it "suggests there is an interaction of antibacterial drugs with hormonal contraceptives, which can potentially impair the effectiveness of the contraceptives," concluded a team led by Dr. Robin Ferner of the Institute of Clinical Sciences at the University of Birmingham.

The findings didn't surprise one American ob-gyn.

"We have known for a long time that certain antibiotics will affect the metabolism of the oral contraceptive hormones," said Dr. Mitchell Kramer, who directs obstetrics and gynecology at Northwell Health's Huntington Hospital in Huntington, N.Y.

"Therefore, we advise of patients on birth control pills to use additional contraception, such as condoms or spermicidal suppositories/foam, during the duration of taking the antibiotic just as a precaution," he said.

According to the U.K. research team, prior studies on interactions between antibiotics and birth control pills had yielded mixed findings.

Seeking clarity, Ferner and his team tracked reports of suspected unwanted drug side effects (called Yellow Cards) that had been reported by health care providers and the public to the U.K.'s drug and medical devices regulator, the Medicines and Healthcare Products Regulatory Agency.

Specifically, they compared the number of unintended pregnancies reported in almost 75,000 Yellow Cards for antibiotics in general, about 33,000 for enzyme-inducing drugs, and more than 65,500 other types of drugs.

There were 46 instances of unintended pregnancies in the Yellow Card reports for antibiotics (a rate of 62 per 100,000), 39 in the enzyme-inducing drug reports (119 per 100,000), and six in reports of other drugs.

Compared with the other types of drugs, unintended pregnancies were seven times more common in Yellow Card reports of antibiotics and 13 times more common in reports of enzyme-inducing drugs, which included some antibiotics.

Congenital birth defects were also reported seven times more often in enzyme-inducing drug Yellow Card reports, according to the study, published Aug. 18 in the journal BMJ Evidence Based Medicine.

Calculating absolute risks from the data wasn't possible, and the risk will vary from woman to woman, according to her physiological make-up and circumstances, the researchers stressed.

They agreed that if a woman is taking hormonal contraceptives and an antibiotic, she is "advised to take extra contraceptive precautions when a short course of an antibacterial drugs is added."

Dr. Jennifer Wu is an ob-gyn at Lenox Hill Hospital in New York City. Reading over the study, she said it was well-designed, with "large numbers and good tracking of patients."

Based on the findings, Wu believes that "doctors and patients need to have careful discussions about new prescriptions and whether they could interfere with birth control pills.

"Pharmacy inserts of antibiotics and the enzyme-inducing drugs should also warn patients as another precaution," she said.

More information

The U.S. Office on Women's Health has more on birth control.




Facebook

Amazon Smile

 

Children and Adult services are available now with no wait time.  

Please contact HBH at 860-548-0101, option 2.

 


powered by centersite dot net