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Durabolin (Nandrolone phenylpropionate):

Humans:
Trade nameStrengthManufacturer
Activin [NLM] 10 mg/ml Aristegvi ES
Anabolin [NLM]50 mg/mlAlto U.S.
Anabolin-IM [NLM] 50 mg/mlAlto U.S.
Anabolin-LA [NLM]100 mg/ml Alto U.S.
Androlone [NLM]50 mg/mlKeene U.S.
Durabolin25 mg/mlOrganon B, ES, FR, GR, NL, FI, CN, U.S.; Opopharma CH; Pilva YU; Medica/Santa TK; Donomed S. Africa
Durabolin50 mg/mlOrganon GB, PT, U.S., CN; Pilva YU
Equibolin-50 [NLM]100 mg/2mlVortech U.S.
Fenobolin20 mg/mlMedexport Russia
Fherbolico [NLM]50 mg/mlFher ES
Hybolin [NLM]25, 50 mg/mlHyrex U.S.
Nandrobolic [NLM]25 mg/mlForest U.S.
Nandrolone phenylpropionate50, 100 mg/mlHayrian Biologicals India
Nandrolone phenylpropionate [NLM]50 mg/mlQuad U.S.
Nerobolil [NLM]25 mg/mlGodeon Ritcher HU
Nerobolil25 mg/mlGodeon Ritcher BG
Nu-Bolic [NLM]25 mg/mlSeatrace U.S.
Superanabolon25 mg/mlSpofa CZ
Turinabol [NLM]25 mg/mlJenapharm G
Turinabol25 mg/mlJenapharm BG; Germed CZ


Durabolin® is the Organon brand name for the injectable steroid nandrolone phenylpropionate. As one could guess, the properties of this drug are very similar to that of Deca-Durabolin®. Both contain the anabolic hormone nandrolone and are produced by the same drug firm (Organon). The primary difference between these two preparations is the speed in which the drug is released. While Deca provides the extremely slow release duration of up three or four weeks, Durabolin® is active for only a few days. In clinical situations Deca can thus be injected once every two or three weeks, while Durabolin® is usually administered every few days.

As with Deca, estrogen buildup is not a typical worry when using this drug. Some feel the fast action of Durabolin® is associated with slightly less water retention than Deca-Durabolin®, but this observation is probably just due to a lower blood concentrations during typical use. There is no difference between the nandrolone which is released into the body by each drug, so we cannot assign Durabolin® any unique set of properties. Nandrolone is generally not noted to cause estrogen trouble in any event, so the chance of developing gynecomastia and water bloat is slight, even among sensitive individuals. Likewise an antiestrogen is usually not necessary when using this steroid. Durabolin® is also the preferred nandrolone product during dieting and contest preparation phases of training when estrogen and water retention are a major concern. This is just due to the fact that blood hormone levels are easier to control with a faster acting substance.

We also know that nandrolone is not an extremely potent androgen. This is because it will reduce to a less active metabolite (dihydronandrolone) in many androgen target tissues, due to interaction with the 5-alpha reductase enzyme. This is of course the same enzyme that potentates the action of testosterone by transforming it to a more active form (dihydrotestosterone). Related side effects such as oily skin, acne, body/facial hair growth and aggravated male pattern hair loss likewise occur much less frequently with these drugs compared to testosterone and many other anabolic/androgenic steroids, making Durabolin a very favorable steroid for those concerned.

While the level of such side effects is low with this anabolic, so may be the gain of strength and muscle mass. This is to be expected, as nandrolones are noted as being slow but quality builders instead of mass drugs. They are however noted to allow for the retention of a higher percentage of new body weight gain after a cycle is over, the user not having to endure a dramatic loss of stored water due to estrogen buildup. Although the buildup of estradiol is not marked, this drug can still notably affect endogenous testosterone levels. One may therefore still need to use an ancillary drug like HCG and/or Clomid® when coming off a cycle. This should ensure the lowest chance for suffering a hormonal crash when the steroid has been removed.

Due to its rapid rate of release from the injection site, Durabolin® is usually administered every two or three days. The dosage of each given shot is usually in the range of 50-100mg, equating to 1 or 2ml when using the 50mg version. To keep injection volume to a comfortable level, men will typically use a slightly lower weekly dosage than with Deca, generally 200-300mg (2 or 3 injections of 100mg). As discussed earlier, the buildup of muscle tissue resulting from Durabolin® is slow and even. This combined with a low incidence of side effects makes it an ideal steroid to use for longer periods of time, so that gains are given time to accumulate. It is likewise not unusual to see someone utilizing a nandrolone such as this in cycles greater than three months in length.

The short action of this drug is highly attractive to female athletes. Although usually more expensive, Durabolin should be the preference if both it and Deca are available. While all nandrolone are generally well tolerated, blood hormone levels are more difficult to control with a long acting ester such as decanoate. Should virilization symptoms become evident, the rapid metabolism of Durabolin® would be a very welcome trait. Here it would only take a matter of days for most of the active hormone to leave the body. The chance for more serious side effects would of course be heightened with Deca, the female athlete left with a highly elevated hormone level for weeks after ceasing use. The preferred administration schedule for women would also be a single injection weekly, at a dosage no more than 50 to 75 mg. This level is sufficient for a quality gain, yet low enough to feel safe from most side effects.

In general, Durabolin® will produce the same side effects seen with Deca, but they may be slightly less pronounced if the dosage used is lower (and/or more controlled, with less peaks) in comparison. Nandrolone preparations are among the most well tolerated steroids in manufacture, causing a very low incidence of unwanted side effects. The only real problems with this drug are availability and price. Although produced in a wide number of countries, Durabolin® in particular is not commonly found on the black market. This may be due to the high selling price and low strength of the various preparations. A single 50mg ampule could cost as much as $15 when sold on the black market, which is quite a high price for such a low dosage of steroid. Quite often the only strength available is even the 25mg version, which can be even less cost effective. At the same time the injections may be too frequent or too large a volume for most to tolerate. These factors make Deca-Durabolin®, the dominant nandrolone preparation on the black market, a much more popular purchase. Recently I did locate an overseas source selling this steroid from India in a strength of 100mg/ml. It is produced by Haryian Biologicals and comes In a 2ml multi-dose vial. The listed price was only $14, which is an extremely good price for 200mg of this steroid. Were such a preparation imported regularly, Durabolin® would no doubt start to become a much more popular steroid in the U.S..

Counterfeits: Should be a safe buy.

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