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EU regulator warns of small brain tumor risk with desogestrel, etonogestrel contraceptives

By Thomson Reuters Jul 10, 2026 | 7:05 AM

July 10 (Reuters) – A European Medicines Agency safety committee said on Friday that commonly used contraceptives containing desogestrel and ​etonogestrel carry a small increased risk ‌of meningioma after prolonged use.

Meningiomas are usually non-cancerous tumors that develop in the membranes surrounding the brain and spinal cord.

Here are some details:

• The ‌committee ​recommended that women with ⁠a current or previous ⁠history of meningioma should not use the hormonal contraceptives, which contain the commonly used synthetic progestins desogestrel or etonogestrel.

• Contraceptives ​containing desogestrel are sold as oral tablets and etonogestrel as implants and vaginal ⁠rings.

• The tumor risk ⁠increases with longer use and ​may be higher in women who previously took ​other meningioma-linked progestogens including cyproterone, nomegestrol, medroxyprogesterone ‌and chlormadinone, EMA said.

• However, the overall likelihood of developing meningioma remains very low, with about one additional case estimated ⁠for every 67,300 women using the medicines.

• The committee said product labels will now list meningioma ⁠as a ‌side effect with unknown frequency ⁠and include new warnings and contraindications.

• ​The ‌recommendations, based on a large ​French epidemiological ⁠study, also require healthcare providers to monitor patients taking the medicines for symptoms including vision changes, hearing loss, worsening headaches and seizures.

(Reporting by Ankita Bora in Bengaluru; Editing by ​Mrigank Dhaniwala)