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A new study has found that RAAS inhibitors, a class of blood pressure-lowering medicine, may be better at reducing the risk of brain aneurysm rupture. People with a brain aneurysm — a weakened area of a blood vessel — who were being treated for high blood pressure with medication from the class of drugs called RAAS inhibitors had a significantly lower risk of a ruptured aneurysm compared to those who took other blood pressure medications. These results indicate that RAAS inhibitors may be preferable to other blood pressure-lowering medications and could inform treatment decisions for people with high blood pressure who have unruptured intracranial aneurysms.