Ephedrine is a naturally occurring alkaloid derived from the Ephedra plant. It acts as a stimulant, primarily affecting the central nervous system by increasing the release of norepinephrine. In the context of supplementation, ephedrine was once widely used for weight loss and performance enhancement due to its ability to increase metabolism, suppress appetite, and improve focus and endurance.
However, due to safety concerns—including cardiovascular and neurological risks—it has been banned or restricted in many countries for use in dietary supplements. Despite this, its role in the history of sports supplementation remains significant.
Ephedrine acts as a bronchodilator and stimulant, enhancing alertness and energy levels, but its strong physiological effects also come with a higher risk profile, especially when combined with other stimulants like caffeine.
Synonyms:
Ma Huang, Ephedra Alkaloids
Benefits:
- Increases metabolic rate
- Enhances energy and focus
- May improve endurance and fat loss (historically)
- Acts as a bronchodilator for respiratory support
Sources:
Extracted from Ephedra sinica and related species.
Observations:
Use in supplements is heavily regulated or banned in many regions due to adverse effects, including heart palpitations, high blood pressure, and risk of stroke. It is not recommended for casual or unsupervised use. Often replaced by milder stimulants like synephrine.
Areas of Study Related:
Pharmacology, Sports Science, Cardiology, Endocrinology.