Nandrolone Decanoate — Deca 300 by Dragon Pharma
Deca 300 is Dragon Pharma's formulation of injectable Nandrolone Decanoate at 300mg/ml — a 19-nor anabolic steroid long valued for lean mass gains alongside notable joint comfort benefits. Each 10ml vial in Dragon Pharma's MCT oil carrier provides sustained release over its long Decanoate ester, making it a foundation compound for extended mass-building cycles.
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What Is Nandrolone Decanoate (Deca)?
Nandrolone Decanoate is a 19-nor anabolic steroid — Nandrolone bound to a long Decanoate ester, extending its release over approximately 15 days, one of the longest esters commonly used. Nandrolone has a favourable anabolic-to-androgenic ratio and a well-established reputation for supporting joint comfort during high-volume training, attributed to its effects on collagen synthesis and connective tissue. Its long ester means Deca cycles run for extended periods — typically 12 weeks or longer — to allow blood levels to build and stabilise.
Effects and Benefits
- Significant lean mass gains, often associated with steady, quality weight gain rather than rapid water-driven size
- Notable joint comfort benefits during high-volume training, linked to effects on collagen synthesis
- Lower aromatisation than testosterone, with a more favourable anabolic-to-androgenic ratio
- Improved recovery and nitrogen retention supporting an anabolic environment
- Long ester provides stable, sustained levels well suited to extended cycles
Dosage and Administration
| Experience Level | Typical Dose | Cycle Length |
|---|---|---|
| Beginner–intermediate | 200–300 mg/week | 12–16 weeks |
| Advanced | 300–600 mg/week | 12–16 weeks |
With an approximately 15-day half-life, Deca 300 is typically injected weekly or split into two injections, with blood levels building gradually over the first several weeks. The long ester means Deca is not suited to short cycles — its benefits, including joint comfort, become most apparent with consistent use over 12 weeks or longer.
Side Effects
Nandrolone's side effect profile differs in some respects from testosterone-based compounds:
- Elevated prolactin from 19-nor activity — Cabergoline is commonly used to manage prolactin-related effects such as reduced libido, sometimes referred to as "Deca dick"
- Suppression of natural testosterone production — Post Cycle Therapy is required after the cycle
- Lower aromatisation than testosterone, though some estrogenic activity still occurs at higher doses
- The very long ester means Nandrolone remains detectable in the body for an extended period after the last injection — relevant for users with detection time considerations
- Maintaining adequate testosterone alongside Deca (rather than running it alone) is standard practice to support the overall hormonal environment
Deca 300 vs Deca 500
Dragon Pharma offers Nandrolone Decanoate in two concentrations:
- Deca 300 (300mg/ml) — the standard concentration, suited to most users and easier to dose precisely at lower-to-moderate weekly amounts
- Deca 500 (500mg/ml) — for advanced users running higher weekly doses who want to minimise injection volume
The active substance and effects are identical between the two — the choice comes down to weekly dose and injection volume preference. Users running 200-400mg/week often find Deca 300 more practical for dose precision, while those running 600mg/week and above benefit from Deca 500's reduced injection volume.
Building a Cycle Around Deca 300
As a long-ester mass compound, Deca 300 pairs with:
- Enantat 250 or Cypionat 250 as the testosterone base — Nandrolone is not typically run alone
- Dianabol as an oral kickstart while Deca's long ester builds to effective levels
- Cabergoline to manage prolactin-related side effects from 19-nor activity
- Clomid or Nolvadex for Post Cycle Therapy
"Deca 300 is formulated in MCT oil for smooth delivery of this long-established compound, giving our customers the steady, sustained-release foundation Nandrolone Decanoate cycles are built around."
Storage and Handling
Store Deca 300 at room temperature, away from direct sunlight and heat. Use sterile technique for every draw — a fresh needle for drawing and a separate needle for injection is recommended to maintain vial sterility and reduce injection discomfort.
