Reversible postural tachycardia syndrome due to inadvertent overuse of Red Bull®
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Postural tachycardia syndrome associated with a vasovagal reaction was recorded in a young volleyball player after an excess intake of Red Bull® as a refreshing energy drink. Considering the widespread use of Red Bull® among young people who are often unaware of the drink’s drug content, this case report suggest Red Bull® be considered a possible cause of orthostatic intolerance.