Parabolan 100 by Dragon Pharma

Dragon Pharma Original Formula

Trenbolone Hexahydrobenzylcarbonate

Parabolan 100100 mg/ml
Ester Hexahydrobenzylcarbonate
Half-Life ~14 days
Anabolic Ratio 500
Androgenic Ratio 500
Carrier MCT Oil
Form Injection, 10ml
Availability: In Stock
$95.00
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Trenbolone Hexahydrobenzylcarbonate — Parabolan 100 by Dragon Pharma

Parabolan 100 is Dragon Pharma's formulation of Trenbolone Hexahydrobenzylcarbonate at 100mg/ml — the longest-acting injectable Trenbolone ester, with an approximate 14-day half-life allowing weekly injections. Parabolan holds a unique distinction among all Trenbolone products: it is the only Trenbolone compound that was ever approved for human pharmaceutical use, manufactured by Negma Laboratoires (France) under the trade name "Parabolan" from the 1980s until its discontinuation in 1997.

Also searched as: Parabolan, Trenbolone Hex, Tren Hexa 100, Parabolan 100 Dragon Pharma.

Parabolan's Pharmaceutical History — The Only Human-Approved Trenbolone

This distinction separates Parabolan from every other Trenbolone product and is a genuine information gap in competitor content:

  • Trenbolone Acetate was originally developed as a veterinary product — used in cattle implants (Finaplix/Revalor) for livestock muscle development, never intended or approved for human use
  • Trenbolone Hexahydrobenzylcarbonate was developed by Negma Laboratoires in France and approved as a human anabolic prescription medication — "Parabolan" — indicated for conditions including cachexia, osteoporosis and androgen deficiency
  • Negma manufactured Parabolan in 76.5mg/1.5ml ampules (equivalent to approximately 50mg of pure Trenbolone base) and marketed it in France from approximately 1980 until 1997
  • In 1997, Negma discontinued Parabolan commercially — not due to safety issues but due to commercial decisions, regulatory environment changes and liability concerns. No Trenbolone product has received human pharmaceutical approval since
  • This brief pharmaceutical history means Parabolan is the only Trenbolone ester for which some structured human pharmacokinetic and clinical data exists from legitimate pharmaceutical production

The Hexahydrobenzylcarbonate Ester — What Makes It Different

The Hexahydrobenzylcarbonate ester is unique in the Trenbolone family:

  • It is a cyclohexylmethyl carbonate — structurally more complex than the simple fatty acid esters used in Trenbolone Acetate and Enanthate
  • This structure produces an approximate 14-day half-life — longer than Enanthate (~7-10 days) and dramatically longer than Acetate (~2-3 days)
  • The practical implication: once-weekly injection maintains stable Trenbolone blood levels — more convenient than Enanthate (twice-weekly) and significantly more convenient than Acetate (EOD)
  • The longer half-life also means Parabolan takes longer to reach steady-state blood levels than shorter esters — and takes longer to clear if the cycle is stopped, similar to Trenbolone Enanthate but extended further

Parabolan vs All Trenbolone Formats

Product Ester Half-Life PCT Start Post-Cycle
Trenbolone 50 (Suspension) None ~4–6 hours Next day
Trenbolone Acetate Acetate ~2–3 days 5–7 days post
Trenbolone Enanthate Enanthate ~7–10 days 14–21 days post
Parabolan (this product) Hexahydrobenzylcarbonate ~14 days 3–4 weeks post
TriTren 150 3-ester blend Phase release 3–4 weeks post

Effects and Benefits

  • The same compound-level effects as all Trenbolone products — lean mass, fat loss, strength, hardness, vascularity, no aromatisation
  • Once-weekly injection — the most convenient injectable Trenbolone injection schedule
  • Stable blood levels maintained with weekly injections due to the long ~14-day half-life
  • The longest-acting Trenbolone ester for users wanting minimum injection frequency

Dosage and Administration

Experience Level Weekly Dose Frequency Cycle Length
Intermediate (established Tren tolerance) 200–300 mg/week Once weekly 12–16 weeks
Advanced 300–500 mg/week Once weekly 12–16 weeks

Parabolan is not recommended for first Trenbolone cycles — its long half-life means side effects persist for 3-4 weeks after stopping, significantly longer than Acetate. It suits experienced users who have established their Trenbolone tolerance and want the convenience of once-weekly injection. PCT begins 3-4 weeks after the last Parabolan injection.

Side Effects

  • All Trenbolone class effects — insomnia, night sweats, prolactin elevation (Cabergoline recommended), aggression, cardiovascular stress
  • Suppression of natural testosterone — Post Cycle Therapy required; start 3-4 weeks after last injection
  • Slowest side effect resolution of all injectable Trenbolone esters if cycle is stopped — the 14-day half-life means meaningful blood levels persist for 8-10 weeks after the last injection

Building a Cycle Around Parabolan

  • Enantat 250 or Cypionat 250 — long-ester testosterone base on the same weekly injection schedule
  • Masteron 200 — matched long-ester hardening agent, all three compounds on once or twice weekly schedule
  • Clomid or Nolvadex for PCT, started 3-4 weeks post last injection

"Parabolan 100 carries the name of the only Trenbolone product ever approved for human pharmaceutical use — the Hexahydrobenzylcarbonate ester that distinguished Negma's formulation from all veterinary Trenbolone compounds, reformulated to our pharmaceutical-grade MCT oil standard."

Storage and Handling

Store Parabolan 100 at room temperature, away from direct sunlight and heat. Use sterile technique for every draw.

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Parabolan is the only Trenbolone compound that was ever approved for human pharmaceutical use — manufactured by Negma Laboratoires in France as a prescription anabolic from approximately 1980 until 1997. All other Trenbolone esters were developed as veterinary products. Its Hexahydrobenzylcarbonate ester was specifically chosen for the human formulation, giving it a ~14-day half-life and once-weekly injection schedule.

Negma discontinued Parabolan in 1997 due to commercial and regulatory factors — not safety concerns. The changing regulatory environment for anabolic steroids in France and European markets, combined with liability considerations, made commercial production impractical. No manufacturer has received human pharmaceutical approval for any Trenbolone product since.

No — its ~14-day half-life means side effects persist for 3-4 weeks after stopping. If Trenbolone side effects prove difficult to manage, the extended clearance provides no quick exit option. Trenbolone Acetate is always recommended for first Tren cycles specifically because of its much faster side effect resolution.

Parabolan's Hexahydrobenzylcarbonate ester produces a ~14-day half-life — approximately 1.5-2× longer than Trenbolone Enanthate's ~7-10 days. Both allow less frequent injections than Acetate, but Parabolan extends this further to once-weekly dosing versus Enanthate's twice-weekly.

3-4 weeks after the last injection, similar to Trenbolone Enanthate but extended slightly further. The long ester means meaningful blood levels persist for several weeks after the last injection — starting PCT too early reduces its effectiveness while Trenbolone still partially suppresses the HPG axis.

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