Not quite. Asparin enhances heat resistance in the body that promotes the longer working ability of Ephedra and Caffeine.
I’m not so sure about this. When you have a fever you take aspirin to do what? Lower your temp. I’ve never seen anything credible that linked aspirin or any other NSAID to increased heat resistance. In fact, Goodman and Gilman’s Manual of Pharmacology and Therapeutics cites several research studies that show that aspirin and other NSAIDs “do not influence body temperature when it is elevated by factors such as exercise or in response to ambient temperature increases of the environment…or increases caused by other medicinal or herbal applicants” (Vol 4, 2009).
Aspirin is a key ingredient in the ECA stack for its body protection properties and its absorptions aid. Without the inclusion of aspirin in the ECA stack, your body would have a harder time digesting and absorbing the ephedra and caffeine. Aspirin has been known to increase absorption rates and it thins the blood, which allows more nutrients to flow throughout the body at a faster rate. This delivers the nutrients and chemicals you need, but it does it faster and more efficiently than if the ECA stack was without aspirin.
From Daniel Holzman’s “The Ephedra Controversy”, found online at JAMA (Journal of the American Medical Association), “most clinical trials measure ephedrine and caffeine effects both independently and jointly, omitting aspirin and other NSAIDs. Aspirin is most often excluded from [such] medical studies as its affects are non-existent in regards to ephedrine or caffeine operation. Aspirin’s purpose in many weight-loss branded combinations is limited to increased absorption, lowered blood pressure, increased blood thinning, and increased cardiovascular prevention. Data has yet to be produced that shows NSAIDs have any affect in a weight loss situation aside from these preventative purposes.”
This study breaks down the need, reactions, and use of aspirin in the ECA stack.
“Use of a Prescribed Ephedrine/Caffeine Combination and the Risk of Serious Cardiovascular Events: A Registry-based Case-Crossover Study”
Dr. Jesper Hallas, Lars Bejjurn. Department of Clinical Pharmacology, Faculty of Health Sciences, University of Southern. June 2008
This also helps to give a better understanding of how aspirin is related to the ephedra/caffeine combination
Physiology and Pharmacology of Temperature Regulation
Obesity and thermogenesis related to the consumption of caffeine, ephedrine, capsaicin, and green tea
Kristel Diepvens, Klaas R. Westerterp, and Margriet S. Westerterp