ephedra likiangensis/stroke

Following the 2004 ban of ephedra, which was linked to several cases of stroke and myocardial infarction, manufacturers have marketed "ephedra-free" weight loss products that include the active ingredient synephrine. Despite the lack of data on safety and efficacy, synephrine is touted by its

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

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

In response to concerns regarding the safety of ephedra-containing dietary supplements, manufacturers have marketed "ephedra-free" products. Many of these contain synephrine, a sympathomimetic amine from the plant Citrus aurantium. Synephrine is structurally similar to ephedrine and has

Ephedra, also known as Ma Huang, was commonly used to enhance athletic performance, "fat burning", and weight loss before its removal from the United States in April 2004 due to acute adverse health reactions including lethal arrhythmias, stroke, vasoconstriction, and myocardial infarction. We

Dietary supplements containing Ma Huang (chinease ephedra) are available on the web sites and dietary shops in USA. They are widely promoted and used as a mean of weight reduction and energy enhancement. They contain Ma Huang alone or combined with Guarana (caffeine), creatine, St John's wort,

Dietary supplements containing Ma Huang (chinease ephedra) are available on the web sites and dietary shops in USA. They are widely promoted and used as a mean of weight reduction and energy enhancement. They contain Ma Huang alone or combined with Guarana (caffeine), creatine, St Jonh's wort,

OBJECTIVE To evaluate possible cardiovascular toxic effects associated with use of dietary supplements containing ma huang, an herbal source of ephedrine. METHODS We reviewed the comprehensive database Adverse Reaction Monitoring System of the Food and Drug Administration, which included clinical

BACKGROUND Dietary supplements that contain ephedra alkaloids (sometimes called ma huang) are widely promoted and used in the United States as a means of losing weight and increasing energy. In the light of recently reported adverse events related to use of these products, the Food and Drug

Ephedrine is a sympathicomimetic agent that stimulates the central nervous and cardiovascular systems and causes bronchodilatation. It is one of the alkaloids in the herb Ephedra which is the basis of several over-the-counter herbal products, among which a number of popular weight-loss products. The

The Food and Drug Administration recently banned the sale of ephedra alkaloids because of their association with arrhythmic sudden death, myocardial infarction, and stroke. This has resulted in the emergence of formulations marketed for weight loss and performance enhancement that are "ephedra free"

The Dietary Supplement Heath and Education Act of 1994 (DSHEA) established the regulatory framework for dietary supplements in the United States, triggering the growth of a multi-billion dollar industry. Ephedra is a dietary supplement used for weight loss. However, due to its sympathomimetic

The appropriate amount of oversight for dietary supplements has been a subject of debate for over a decade. This debate has come to a head recently with herbal ephedra, which may be associated with adverse events including heart attack, stroke, seizure, and death. This article reviews and puts into