1 The warning relates to nutritional supplements containing the herb ephedra or its alkaloid derivative, ephedrine; in copyright, ephedrine is approved for use only being a nasal decongestant. It must also be avoided when tachycardia is undesirable, for instance aortic stenosis. Alpha-adrenergic stimulation because of ephedrine results in the contraction https://anatoles397aip0.oneworldwiki.com/user