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Steroids / 19-nortestosterone derivatives

326 In the index

Nandrolone Deca

A steroid (Deca-Durabolin) once approved for anemia and wasting conditions, one of the most studied anabolic steroids in medical literature. Human studies confirm real muscle-building benefits and comparatively easier joints, alongside a strong suppression of the body's own testosterone and worse cholesterol.

Also known as 19-nortestosterone, Nandro, Nortestosterone, Norandrostenolone, 19-Norandrostenolone, Menidrabol, Nortestonate, Nandrolon

Effects Build muscle Heal
Routes Injectable
Legal status Controlled substance
WADA Banned at all times

3D Molecular Structure of C18H26O2

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  • Carbon
  • Hydrogen
  • Oxygen

Chemistry

Formula
C18H26O2
Molar mass
274.4
CAS
434-22-0
PubChem CID
9904
IUPAC name
(8R,9S,10R,13S,14S,17S)-17-hydroxy-13-methyl-2,6,7,8,9,10,11,12,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-3-one
InChIKey
NPAGDVCDWIYMMC-IZPLOLCNSA-N

Reported dosing

User-reported

What has been reported in the literature and by users. This is a record of what is done, not a recommendation.

Typical dose 200-400 mg/week
Reported range 100-600 mg/week
Route Intramuscular injection
Frequency Once or twice weekly
Duration 10-16 week cycles (unregulated use) or lower-dose chronic use in medical/TRT-adjacent contexts

FDA-approved (as Deca-Durabolin) for certain anemias, though rarely prescribed today; a Schedule III controlled substance for non-prescription use. Widely used off-label in bodybuilding, notably associated with 'Deca dick' (erectile dysfunction) at higher doses.

Where this comes from FDA prescribing information; user-reported/bodybuilding literature

There is no approved human dosing for this compound. The figures above are what users and vendors report, not what has been established as safe or effective. Treat them as a record of what is done, not as guidance.

Variants

Name Abbr Route Notes
Nandrolone decanoate Deca Injectable Long ester, ~15 day half-life. The classic Deca.
Nandrolone phenylpropionate NPP Injectable Short ester version, clears far faster than Deca.
Nandrolone laurate NL Injectable A very long veterinary ester, rare in human use.