47 citations
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November 1982 in “Journal of Cardiovascular Pharmacology” Nitrendipine and nifedipine effectively block muscle contractions, while papaverine relaxes them and minoxidil needs high amounts to work.
1 citations
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June 2023 in “Frontiers in Pharmacology” Vasodilators may worsen abdominal aortic aneurysm.
November 2005 in “PubMed” 
1 citations
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October 2023 in “Journal of clinical psychopharmacology” Divalproex sodium can cause pleural effusion, which stops when the drug is discontinued.
July 2025 in “Journal of Investigative Dermatology” Spironolactone can safely lower blood pressure in patients on other blood pressure medications, but may slightly increase the risk of low blood pressure.
January 2014 in “Reactions Weekly” 
5 citations
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January 2014 in “Hospital pharmacy” Using a strong allergy medicine too often on the scalp can cause swelling and inflammation.
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