A new study suggests that people who take a few common drugs may have a decreased risk of having a bleeding stroke due to a ruptured brain aneurysm.
The study is published in the June 5, 2024, online issue of Neurology, the medical journal of the American Academy of Neurology. The results do not prove that these drugs reduce the risk of this type of aneurysm; they only show an association.
For the study, researchers looked at 4,879 people who had ruptured brain aneurysms, called aneurysmal subarachnoid hemorrhages. Those people were each compared to nine people of the same age and sex, for a total of 43,911 people who did not have ruptured brain aneurysms.
Then researchers looked at electronic health records to see what prescription drugs people took.
They found that four drugs were associated with a decreased risk of having a ruptured brain aneurysm: the high blood pressure drug lisinopril; the cholesterol drug simvastatin; the diabetes drug metformin; and the drug tamsulosin, prescribed for enlarged prostate.
After adjusting for other factors that could affect the risk of stroke, such as high blood pressure, smoking, alcohol abuse and total number of other health conditions, researchers found that people currently taking lisinopril were 37% less likely to have a ruptured brain aneurysm than those not taking the drug. People taking simvastatin were 22% less likely to have a stroke. Those taking metformin were 42% less likely to have a stroke and those taking tamsulosin were 45% less likely.
Researchers also found an increased risk of having a ruptured brain aneurysm for people taking four drugs: the blood thinner warfarin; the antidepressant venlafaxine; the antipsychotic and antiemetic drug prochlorperazine; and the painkiller co-codamol.
