Xenadrine EFX is an over-the-counter weight-loss supplement. In 2004, the United States Food and Drug Administration banned the use of ephedrine in supplements since it was found to greatly increase the risk of heart attack or stroke. As a result, according to dietspotlight.com, the current formulations of Xenadrine EFX do not contain ephedrine. Although ephedrine has been removed from the ingredient list, Xenadrine EFX still has some potentially dangerous side effects.
Dehydration
Bodybuildingforyou.com states that Xenadrine EFX can cause dehydration. The supplement is designed to increase the metabolic rate, so an increase in the excretion of fluids through urination and perspiration is inevitable. Dehydration can lead to painful muscle cramps during exertion. To avoid dehydration, fluid intake should be increased throughout the day and especially during and after exercise.
Dermatological Problems
Xenadrine EFX contains the non-essential amino acid tyrosine. Tyrosine can affect how much melanin the body produces. Melanin is a natural substance that gives pigment to the hair, skin, and the iris of the eye. The ingestion of tyrosine can cause skin spots to appear, and may also cause undesirable skin discoloration.
Cardiovascular Implications
Dietspotlight.com lists caffeine, green tea extract and yerba mate as stimulants found in Xenadrine EFX. When the body experiences a rapid increase in stimulation, rapid heart rate, headaches, dizziness, profuse perspiration, muscle twitching and lightheadedness can occur. Individuals who are not accustomed to ingesting increased amounts of stimulants can experience numbness of the hands and feet, as the circulatory system becomes overwhelmed.
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