Hawthorn appears to be effective for the treatment of stage II congestive heart failure. The mechanism(s) by which hawthorn exerts this positive effect is still unclear as results regarding changes in particular cardiovascular parameters are mixed. Human clinical studies of the use of hawthorn in other cardiovascular conditions are lacking. Adverse effects of hawthorn therapy appear to be mild and no significant drug interactions have been reported (though, in theory it might potentiate the effect of vasodilators).
Key WordsCrataegus oxyacantha heart failure hypertension vasodilation digoxin
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