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ephedra/hemorragia

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Early brain injury, which is associated with brain cell death, blood-brain barrier disruption, brain edema, and other pathophysiological events, is thought to be the main target in the prevention of poor outcomes after subarachnoid hemorrhage (SAH). Emerging evidences indicates that complement

Use of Ephedra-containing products and risk for hemorrhagic stroke.

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This case-control study examined the association between Ephedra use and risk for hemorrhagic stroke. For use of Ephedra at any dose during the 3 days before the stroke, the adjusted OR was 1.00 (95% CI 0.32 to 3.11). For daily doses of < or =32 mg/day, the OR was 0.13 (95% CI 0.01 to 1.54), and for

Use of Ephedra-containing products and risk for hemorrhagic stroke.

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Cardiotoxicity of Ma Huang/caffeine or ephedrine/caffeine in a rodent model system.

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Ma Huang (equivalent to 0, 12.5, 25, or 50 mg/kg ephedrine) or ephedrine (0, 6.25, 12.5, 25 mg/kg) were administered as one bolus oral dose to male F344 rats with and without caffeine. The herbal medicine Ma Huang (ephedra) in combination with caffeine caused rapid clinical signs of toxicity

Water potentiates the pressor effect of ephedra alkaloids.

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BACKGROUND The use of ephedra alkaloids in over-the-counter preparations has been associated with potentially serious cerebrovascular events. Because of its potential association with hemorrhagic strokes, phenylpropanolamine has been largely substituted for by pseudoephedrine, but it is not clear

Ischemic stroke after using over the counter products containing ephedra.

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Dietary supplements containing Ephedra used for weight loss and physical performance enhancement such as "herbal ecstasy" are widely available, and it is estimated that at least 1% of the adult population have taken these products. Ephedra products including Ephedra alkaloids such as

Ephedra alkaloids inhibit platelet aggregation.

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Sympathomimetics, such as Ephedra alkaloids, are associated with an increased incidence of intracerebral hemorrhage believed to be secondary to concomitant elevations in blood pressure. We hypothesized that sympathomimetics decrease platelet aggregation. Reductions in epinephrine-mediated platelet

Dietary supplements in primary care. Botanicals can affect surgical outcomes and follow-up.

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Dietary supplements are commonly used by patients of all ages, yet few patients reveal use of these products to their medical providers. Certain dietary supplements can react or interact with frequently used surgical medications--including anesthesia--and may cause serious unforeseen consequences or
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