Xenadrine RFA-X is an herbal weight loss supplement. According to Drugstore.com, Xenadrine contains several herbs including ma huang, more commonly known as ephedrine; guarana, a natural caffeine source; willow bark extract; ginger root; and Citrus aurantium. Xenadrine RFA reports that the supplement works by increasing your body's ability to burn fat by raising your body's metabolic rate, though no medical research is available to support that claim. Because of the possibility of serious side effects associated with use of Xenadrine, check with your doctor before you begin taking Xenadrine.
Possible Side Effects
According to Drugstore.com, possible side effects of taking Xenadrine include tremors, headaches, trouble sleeping, nausea, vomiting, fatigue, and dizziness. More serious side effects associated with the use of ma huang and guarana include irregular heart rhythms, heart attack, stroke, seizures, and death. You should consult with your physician before taking Xenadrine. If you experience any side effects while using the supplement, stop taking it immediately and notify your physician.
Contraindications for Use
According to Xenadrine RFA, Xenadrine is not intended for use by anyone under the age of 18, or anyone who is pregnant or nursing. Also, consult your doctor before taking Xenadrine if you are at risk of, have a family history of, or are being treated for heart disease, high blood pressure, migraines, liver or thyroid diseases, diabetes, glaucoma, anxiety or depression, stroke, difficulty urinating, or an enlarged prostate. According to Drugstore.com, if you have any of these conditions, the use of Xenadrine may make your health problems worse, because Xenadrine works by raising your body's metabolic rate, causing your heart to beat faster and your blood pressure to rise.
Dose Limitations
According to both Xenadrine RFA and Drugstore.com, the possible side effects of Xenadrine may be dose-related--the higher dose you take and the longer you take it, your risk of developing a side effect of the supplement may increase. Drugstore.com recommends that you should not take more than six capsules of Xenadrine a day, or use the supplement for longer than 12 weeks.
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