A few mild side effects of ephedrine include trembling, palpitations, headaches, restlessness, anxiety, and insomnia. Due to its direct sympathomimetic actions, ephedrine can increase heart rate, contractility, cardiac output, and peripheral resistance.
Ephedra or ephedrine-containing dietary supplements can increase nausea, vomiting, and psychological symptoms like anxiety and mood swings in addition to triggering palpitations, autonomic hyperactivity, and occasionally fatalities.
Supplements can also help athletes who need to gain weight or make up for a known vitamin deficiency. Ergogenic characteristics in some common supplements enhance energy production and recuperation. The most extensively studied substances are beta-alanine, creatine, protein, and caffeine.
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