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Ephedrine (Ephedrine HCl)

Fat burner

Ephedrine HCl · ECA (Ephedrine-Caffeine-Aspirin)

Ephedrine combined with caffeine and aspirin (ECA stack) was the reference fat burner before Clenbuterol. Still very effective and cheaper. Banned in some countries. Strong stimulant — cardiovascular monitoring recommended.

Half-life

3–6 heures

Detection

2–3 jours

Oral

Dosages

Beginner8–12,5 mg × 2/j
Intermediate25 mg × 3/j
Advanced25–30 mg × 3/j
Female8-12.5 mg × 2/day

Frequency : 2-3× / day · ECA: Ephedrine + Caffeine 200 mg + Aspirin 81 mg

Effects

  • β-adrenergic lipolysis
  • Thermogenesis
  • Reduced appetite
  • Energy and focus
  • Slightly improved performance

Side effects

  • Hypertension
  • Tachycardia
  • Insomnia
  • Anxiety
  • Mild dependence

Support supplements

Caffeine (ECA stack)MagnesiumPotassium

Synergies & stacks

Caffeine (classic ECA)T3Clenbuterol (but stack dangerous — pick one)

Avoid

  • Cardiomyopathies
  • Hypertension
  • MAOIs
  • With other stimulants
  • Continuous use > 8 weeks

AnaProtoKol is a health and performance tracking tool. This information is provided for educational purposes only and does not constitute medical advice. Consult a qualified healthcare professional before starting any protocol.

Sources

Studies and scientific publications this guide relies on.

  1. Astrup A, Lundsgaard C, Madsen J, et al. (1985). Enhanced thermogenic responsiveness during chronic ephedrine treatment in man. American Journal of Clinical Nutrition. doi: 10.1093/ajcn/42.1.83

    Étude humaine pivot (5 sujets, 4 semaines) : l'éphédrine 20 mg ×3/j augmente la thermogenèse postprandiale de manière persistante (pas de tachyphylaxie comme attendu) — démontre le mécanisme β-adrénergique de stimulation de la dépense énergétique.

  2. Boozer CN, Daly PA, Homel P, et al. (2002). Herbal ephedra/caffeine for weight loss: a 6-month randomized safety and efficacy trial. International Journal of Obesity. doi: 10.1038/sj.ijo.0801999

    RCT 6 mois (167 sujets en surpoids) : éphédra (90 mg éphédrine équivalent) + caféine (192 mg) entraîne -5,3 kg vs -2,6 kg sous placebo, avec hausse modérée de la pression artérielle et de la fréquence cardiaque — efficacité dose-modérée confirmée chez l'humain.

  3. Shekelle PG, Hardy ML, Morton SC, et al. (2003). Efficacy and safety of ephedra and ephedrine for weight loss and athletic performance: a meta-analysis. JAMA. doi: 10.1001/jama.289.12.1537

    Méta-analyse JAMA de 52 essais : éphédrine ± caféine entraîne -0,9 kg/mois de perte de poids vs placebo, sans bénéfice démontré sur la performance athlétique, mais signal de sécurité préoccupant — troubles psychiatriques, palpitations, tachycardie, hypertension significativement plus fréquents.

  4. Haller CA, Benowitz NL (2000). Adverse cardiovascular and central nervous system events associated with dietary supplements containing ephedra alkaloids. New England Journal of Medicine. doi: 10.1056/NEJM200012213432502

    Étude NEJM de 140 cas rapportés à la FDA : événements cardiovasculaires (hypertension, palpitations, infarctus, accidents vasculaires cérébraux) et neurologiques (convulsions, psychose) graves associés à l'éphédra — 31 % directement liés au produit, 17 % « possiblement ».

  5. Pope HG Jr, Wood RI, Rogol A, et al. (2014). Adverse health consequences of performance-enhancing drugs: an Endocrine Society scientific statement. Endocrine Reviews. doi: 10.1210/er.2013-1058

    Énoncé Endocrine Society : éphédrine et stack ECA (éphédrine-caféine-aspirine) en bodybuilding — efficacité modeste sur la perte de graisse, profil de risque cardiovasculaire et psychiatrique élevé, retiré aux USA en 2004.

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AnaProtoKol is a health and performance tracking tool. This information is provided for educational purposes only and does not constitute medical advice. Consult a qualified healthcare professional before starting any protocol.