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Primobolan Oral (Primo Oral)

Oral steroid

Primo Oral · Methenolone Acetate

Oral version of Primobolan. Less effective than the injectable mg-for-mg but well tolerated, not C-17 alkylated. Popular with women and for mild cuts. Arnold Schwarzenegger reportedly used Primobolan injectable extensively.

Half-life

4–6 heures

Detection

4–5 semaines

Anabolic ratio

88

Androgenic ratio

57

OralPCT required

Dosages

Beginner50–75 mg/j
Intermediate75–100 mg/j
Advanced100–150 mg/j
Female25-50 mg/day (the safest for women)

Frequency : 2-3× / day

Effects

  • Lean, quality gains
  • Muscle preservation when cutting
  • Low water retention
  • Low suppression

Side effects

  • Hair loss (mild DHT)
  • Moderate HPTA shutdown
  • Limited efficacy at reasonable doses

Support supplements

Omega-3TUDCA (low preventive dose)Vitamin D3

Synergies & stacks

TestosteroneAnavarSARMsHypocaloric diet

Avoid

  • Expectations of massive gains (not very effective for that)
  • Very high doses

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. Pollen RH (1980). Pathophysiology of aplastic anemia and its treatment with methenolone enanthate. Medizinische Klinik. pmid: 7467606

    Étude clinique sur le methénolone (Primobolan) en aplasie médullaire : la forme orale (acétate, ester très court) est utilisée à 50-150 mg/j en clinique, biodisponibilité orale faible (~10 %) explique les doses élevées vs forme injectable.

  2. Saartok T, Dahlberg E, Gustafsson JA (1984). Relative binding affinity of anabolic-androgenic steroids: comparison of the binding to the androgen receptors in skeletal muscle and in prostate, as well as to sex hormone-binding globulin. Endocrinology. doi: 10.1210/endo-114-6-2100

    Étude de référence : le methénolone partage le même profil d'affinité au RA quelle que soit la forme (acétate orale vs énanthate injectable) — seule la biodisponibilité diffère.

  3. Kicman AT (2008). Pharmacology of anabolic steroids. British Journal of Pharmacology. doi: 10.1038/bjp.2008.165

    Revue de pharmacologie : le methénolone acétate (forme orale) n'est pas 17α-alkylé mais possède un groupe 1-méthyl qui le rend partiellement résistant au métabolisme de premier passage hépatique — d'où la faible biodisponibilité (~10 %) mais l'absence de toxicité hépatique typique des oraux α-alkylés.

  4. 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 : le primobolan oral est l'un des rares oraux non hépatotoxiques (absence d'alkylation 17α), avec un profil d'effets indésirables limité mais une qualité produit historiquement médiocre sur le marché parallèle.

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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.