France to warn 1.6M women on desogestrel pill meningioma risk

France's ANSM will update desogestrel contraceptive labeling to list meningioma as an adverse effect of unknown frequency and send letters to 1.6 million women who have used the pill. The action follows a study linking the progestin to increased meningioma risk, though absolute risk remains low. This regulatory move may prompt similar reviews in other countries and affect prescribing practices.