Stroke associated with sympathomimetics contained in over-the-counter cough and cold drugs
- PMID: 12791938
- DOI: 10.1161/01.STR.0000075293.45936.FA
Stroke associated with sympathomimetics contained in over-the-counter cough and cold drugs
Abstract
Background and purpose: Phenylpropanolamine (PPA) and pseudoephedrine are sympathomimetics contained in over-the-counter cold preparations. A case-control study linked PPA use with hemorrhagic stroke in women. Twenty-two patients with stroke associated with use of these drugs are described.
Methods: In a consecutive stroke registry since 1988, 22 patients had stroke associated with over-the-counter sympathomimetics. Sympathomimetic dosage and type, time interval until stroke onset, and neuroimaging findings are described.
Results: Ten male and 12 female patients were included. Intracerebral hemorrhage occurred in 17 patients, subarachnoid hemorrhage in 4, and ischemic stroke in 1. Stroke was associated with PPA use in 16 patients (dose 75 to 675 mg), with pseudoephedrine in 4 (dose 60 to 300 mg), and with others administered by the nasal route in 2 (oxymetazoline and phenylephrine). Stroke occurred after a single dose in 17 patients and after daily use during several days in 5. The interval between drug exposure and clinical onset varied from 30 minutes to 24 hours. Stroke occurred after recommended doses of PPA (50 to 75 mg) in 32% and pseudoephedrine (60 mg) in 50% of patients. Eight patients had acute hypertension at stroke onset. Cerebral angiography was normal in 8 cases and showed diffuse vasospasm or beading in 10 patients.
Conclusions: Stroke related to over-the-counter sympathomimetics was associated with acute hypertension and/or vasospasm or angiitis mechanisms, most related to the use of PPA; however, stroke also occurred with the use of other sympathomimetics, particularly pseudoephedrine. Although stroke complications occurred when doses were used that were higher than recommended doses, apparently there is also a stroke risk when these agents are taken properly.
Comment in
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Editorial comment--Over-the-counter cold remedies and stroke.Stroke. 2003 Jul;34(7):1673. doi: 10.1161/01.STR.0000079181.40785.03. Epub 2003 Jun 12. Stroke. 2003. PMID: 12805484 No abstract available.
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Over-the-counter cough and cold medication use and risk of stroke.Stroke. 2003 Dec;34(12):e234-5; author reply e234-5. doi: 10.1161/01.STR.0000104161.88050.40. Epub 2003 Dec 1. Stroke. 2003. PMID: 14657553 No abstract available.
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