Excessive weight often affects the effectiveness of medications. However, according to a report on the US Health Day website on February 23, the latest research shows that the effect of using contraceptives is the same whether women are of normal weight or obese.

“About one-third of American women between the ages of 20 and 39 are obese, and most of them are using contraceptives.” Fanny, Vice President of External Medical Affairs, Planned Parenthood Federation of America Dr. Sarah Collins said that female hormonal contraceptives mainly include oral contraceptives, contraceptive injections and subcutaneous implants. "The latest research shows that after obese women use contraceptives, the concentration of contraceptive drugs in their bodies rises more slowly, and the overall level is indeed relatively low." Mei Li, president of the American Planned Parenthood Association and professor of pediatrics and obstetrics and gynecology at the University of Chicago But overall, there is no significant difference in the contraceptive effectiveness of these contraceptives between normal-weight and obese women, said Sarah Gilliam.