Dynabolon®(nandrolone undecanoate) anabolic steroid profile and use in bulking cycle

akn · Jun 13, 2014

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oNotOptimizeForBrowser/> <m:mathPr> <m:mathFont m:val="Cambria Math"/> <m:brkBin m:val="before"/> <m:brkBinSub m:val="--"/> <m:smallFrac m:val="off"/> <m:dispDef/> <m:lMargin m:val="0"/> <m:rMargin m:val="0"/> <m:defJc m:val="centerGroup"/> <m:wrapIndent m:val="1440"/> <m:intLim m:val="subSup"/> <m:naryLim m:val="undOvr"/> </m:mathPr></w:WordDocument> </xml><![endif]--> [FONT=&quot] Description:[/FONT]
[FONT=&quot]Nandrolone undecanoate is an injectable form of the anabolic[/FONT]
[FONT=&quot]steroid nandrolone. The ester applied here is one carbon[/FONT]
[FONT=&quot]atom longer than decanoate, and consequently forms a very[/FONT]
[FONT=&quot]slightly longer-lasting drug deposit at the site of injection.[/FONT]
[FONT=&quot]With proper attention paid to carrier, concentration, volume,[/FONT]
[FONT=&quot]and pharmacokinetics, it would likely even be possible to[/FONT]
[FONT=&quot]formulate this steroid into a very long-acting drug[/FONT]
[FONT=&quot]preparation, one similar to testosterone undecanoate[/FONT]
[FONT=&quot](Nebido) in appearance. Even without a further protracted[/FONT]
[FONT=&quot]therapeutic window, nandrolone undecanoate can be[/FONT]
[FONT=&quot]comfortably injected once every 1 to 2 weeks, which reflects[/FONT]
[FONT=&quot]its slow-acting nature. Although no longer available, this[/FONT]
[FONT=&quot]agent was once highly favored by athletes and bodybuilders[/FONT]
[FONT=&quot]for its ability to promote slow steady gains in lean mass with[/FONT]
[FONT=&quot]minimal estrogenic or androgenic side effects.[/FONT]
[FONT=&quot]History:[/FONT]
[FONT=&quot]Nandrolone undecanoate was developed during the 1960’s,[/FONT]
[FONT=&quot]and was subsequently sold as Dynabolon in Italy (Chrinos)[/FONT]
[FONT=&quot]and France (Theramex), and as Psychobolan in Germany[/FONT]
[FONT=&quot](Theramex). The Italian product was moved to the new[/FONT]
[FONT=&quot]Farmasister label years later, but retained the original[/FONT]
[FONT=&quot]Dynabolon trade name. Dynabolon was generally indicated[/FONT]
[FONT=&quot]for use in patients suffering from malnutrition, catabolic[/FONT]
[FONT=&quot]states, or recovering from major surgery. It was also used to[/FONT]
[FONT=&quot]combat osteoporosis, including the treatment of androgensensitive[/FONT]
[FONT=&quot]populations such as women and the elderly.[/FONT]
[FONT=&quot]Nandrolone undecanoate seems to have exhibited a fair[/FONT]
[FONT=&quot]safety record, yet in spite of this, the three known[/FONT]
[FONT=&quot]commercial preparations did not last on their respective[/FONT]
[FONT=&quot]prescription drug markets. Psychobolan from Germany and[/FONT]
[FONT=&quot]Dynabolon from Farmasister in Italy were discontinued many[/FONT]
[FONT=&quot]years ago, and Dynabolon from France finally followed[/FONT]
[FONT=&quot]before the close of the 1990’s. Presently, no legitimate[/FONT]
[FONT=&quot]pharmaceutical preparation containing nandrolone[/FONT]
[FONT=&quot]undecanoate is known to exist.[/FONT]
[FONT=&quot]How Supplied:[/FONT]
[FONT=&quot]Nandrolone undecanoate is no longer available as a[/FONT]
[FONT=&quot]prescription drug product. When manufactured, it was[/FONT]
[FONT=&quot]supplied at a concentration of 80.5 mg/mL dissolved in oil[/FONT]
[FONT=&quot]and sealed in a 1 mL ampule. Each ampule provided the[/FONT]
[FONT=&quot]equivalent of 50 mg of nandrolone base.[/FONT]
[FONT=&quot]Structural Characteristics:[/FONT]
[FONT=&quot]Nandrolone undecanoate is a modified form of nandrolone,[/FONT]
[FONT=&quot]where a carboxylic acid ester (undecanoic acid) has been[/FONT]
[FONT=&quot]attached to the 17-beta hydroxyl group. Esterified steroids[/FONT]
[FONT=&quot]are less polar than free steroids, and are absorbed more[/FONT]
[FONT=&quot]slowly from the area of injection. Once in the bloodstream,[/FONT]
[FONT=&quot]the ester is removed to yield free (active) nandrolone.[/FONT]
[FONT=&quot]Esterified steroids are designed to prolong the window of[/FONT]
[FONT=&quot]therapeutic effect following administration, allowing for a[/FONT]
[FONT=&quot]less-frequent injection schedule compared to injections of[/FONT]
[FONT=&quot]free (unesterified) steroid. Nandrolone undecanoate is[/FONT]
[FONT=&quot]designed to provide a slow release of nandrolone for up to 3[/FONT]
[FONT=&quot]to 4 weeks following injection.[/FONT]
[FONT=&quot]Side Effects (Estrogenic):[/FONT]
[FONT=&quot]Nandrolone has a low tendency for estrogen conversion,[/FONT]
[FONT=&quot]estimated to be only about 20% of that seen with[/FONT]
[FONT=&quot]testosterone.491 This is because while the liver can convert[/FONT]
[FONT=&quot]nandrolone to estradiol, in other more active sites of steroid[/FONT]
[FONT=&quot]aromatization such as adipose tissue nandrolone is far less[/FONT]
[FONT=&quot]open to this process.492 Consequently, estrogenrelated side[/FONT]
[FONT=&quot]effects are a much lower concern with this drug than with[/FONT]
[FONT=&quot]testosterone. Elevated estrogen levels may still be noticed[/FONT]
[FONT=&quot]with higher dosing, however, and may cause side effects such[/FONT]
[FONT=&quot]as increased water retention, body fat gain, and[/FONT]
[FONT=&quot]gynecomastia. An anti-estrogen such as clomiphene citrate or[/FONT]
[FONT=&quot]tamoxifen citrate may be necessary to prevent estrogenic side[/FONT]
[FONT=&quot]effects if they occur. One may alternately use an aromatase[/FONT]
[FONT=&quot]inhibitor like Arimidex® (anastrozole), which more[/FONT]
[FONT=&quot]efficiently controls estrogen by preventing its synthesis.[/FONT]
[FONT=&quot]Aromatase inhibitors can be quite expensive in comparison[/FONT]
[FONT=&quot]to anti-estrogens, however, and may also have negative[/FONT]
[FONT=&quot]effects on blood lipids.[/FONT]
[FONT=&quot]It is of note that nandrolone has some activity as a progestin[/FONT]
[FONT=&quot]in the body.493 Although progesterone is a c-19 steroid,[/FONT]
[FONT=&quot]removal of this group as in 19-norprogesterone creates a[/FONT]
[FONT=&quot]hormone with greater binding affinity for its corresponding[/FONT]
[FONT=&quot]receptor. Sharing this trait, many 19-nor anabolic steroids[/FONT]
[FONT=&quot]are shown to have some affinity for the progesterone receptor[/FONT]
[FONT=&quot]as well.494 The side effects associated with progesterone are[/FONT]
[FONT=&quot]similar to those of estrogen, including negative feedback[/FONT]
[FONT=&quot]inhibition of testosterone production and enhanced rate of fat[/FONT]
[FONT=&quot]storage. Progestins also augment the stimulatory effect of[/FONT]
[FONT=&quot]estrogens on mammary tissue growth. There appears to be a[/FONT]
[FONT=&quot]strong synergy between these two hormones here, such that[/FONT]
[FONT=&quot]gynecomastia might even occur with the help of progestins,[/FONT]
[FONT=&quot]without excessive estrogen levels. The use of an antiestrogen,[/FONT]
[FONT=&quot]which inhibits the estrogenic component of this[/FONT]
[FONT=&quot]disorder, is often sufficient to mitigate gynecomastia caused[/FONT]
[FONT=&quot]by nandrolone.[/FONT]
[FONT=&quot]Side Effects (Androgenic):[/FONT]
[FONT=&quot]Although classified as an anabolic steroid, androgenic side[/FONT]
[FONT=&quot]effects are still possible with this substance, especially with[/FONT]
[FONT=&quot]higher doses. This may include bouts of oily skin, acne, and[/FONT]
[FONT=&quot]body/facial hair growth. Anabolic/androgenic steroids may[/FONT]
[FONT=&quot]also aggravate male pattern hair loss. Women are warned of[/FONT]
[FONT=&quot]the potential virilizing effects of anabolic/androgenic[/FONT]
[FONT=&quot]steroids. These may include a deepening of the voice,[/FONT]
[FONT=&quot]menstrual irregularities, changes in skin texture, facial hair[/FONT]
[FONT=&quot]growth, and clitoral enlargement. Nandrolone is a steroid[/FONT]
[FONT=&quot]with relatively low androgenic activity relative to its tissuebuilding[/FONT]
[FONT=&quot]actions, making the threshold for strong androgenic[/FONT]
[FONT=&quot]side effects comparably higher than with more androgenic[/FONT]
[FONT=&quot]agents such as testosterone, methandrostenolone, or[/FONT]
[FONT=&quot]fluoxymesterone. It is also important to point out that due to[/FONT]
[FONT=&quot]its mild androgenic nature and ability to suppress[/FONT]
[FONT=&quot]endogenous testosterone, nandrolone is prone to interfering[/FONT]
[FONT=&quot]with libido in males when used without another androgen.[/FONT]
[FONT=&quot]Note that in androgen-responsive target tissues such as the[/FONT]
[FONT=&quot]skin, scalp, and prostate, the relative androgenicity of[/FONT]
[FONT=&quot]nandrolone is reduced by its reduction to dihydronandrolone[/FONT]
[FONT=&quot](DHN).495 496 The 5-alpha reductase enzyme is responsible[/FONT]
[FONT=&quot]for this metabolism of nandrolone. The concurrent use of a 5-[/FONT]
[FONT=&quot]alpha reductase inhibitor such as finasteride or dutasteride[/FONT]
[FONT=&quot]will interfere with site-specific reduction of nandrolone[/FONT]
[FONT=&quot]action, considerably increasing the tendency of nandrolone to[/FONT]
[FONT=&quot]produce androgenic side effects. Reductase inhibitors should[/FONT]
[FONT=&quot]be avoided with nandrolone if low androgenicity is desired.[/FONT]
[FONT=&quot]Side Effects (Hepatotoxicity):[/FONT]
[FONT=&quot]Nandrolone is not c-17 alpha alkylated, and not known to[/FONT]
[FONT=&quot]have hepatotoxic effects. Liver toxicity is unlikely.[/FONT]
[FONT=&quot]Side Effects (Cardiovascular):[/FONT]
[FONT=&quot]Anabolic/androgenic steroids can have deleterious effects on[/FONT]
[FONT=&quot]serum cholesterol. This includes a tendency to reduce HDL[/FONT]
[FONT=&quot](good) cholesterol values and increase LDL (bad)[/FONT]
[FONT=&quot]cholesterol values, which may shift the HDL to LDL balance[/FONT]
[FONT=&quot]in a direction that favors greater risk of arteriosclerosis. The[/FONT]
[FONT=&quot]relative impact of an anabolic/androgenic steroid on serum[/FONT]
[FONT=&quot]lipids is dependant on the dose, route of administration (oral[/FONT]
[FONT=&quot]vs. injectable), type of steroid (aromatizable or non[/FONT]
[FONT=&quot]aromatizable), and level of resistance to hepatic metabolism.[/FONT]
[FONT=&quot]Studies administering 600 mg of nandrolone decanoate per[/FONT]
[FONT=&quot]week for 10 weeks demonstrated a 26% reduction in HDL[/FONT]
[FONT=&quot]cholesterol levels.497 This suppression is slightly greater[/FONT]
[FONT=&quot]than that reported with an equal dose of testosterone[/FONT]
[FONT=&quot]enanthate, and is in agreement with earlier studies showing a[/FONT]
[FONT=&quot]slightly stronger negative impact on HDL/LDL ratio with[/FONT]
[FONT=&quot]nandrolone decanoate as compared to testosterone[/FONT]
[FONT=&quot]cypionate.498 Nandrolone injectables, however, should still[/FONT]
[FONT=&quot]have a significantly weaker impact on serum lipids than c-17[/FONT]
[FONT=&quot]alpha alkylated agents. Anabolic/androgenic steroids may[/FONT]
[FONT=&quot]also adversely affect blood pressure and triglycerides,[/FONT]
[FONT=&quot]reduce endothelial relaxation, and support left ventricular[/FONT]
[FONT=&quot]hypertrophy, all potentially increasing the risk of[/FONT]
[FONT=&quot]cardiovascular disease and myocardial infarction.[/FONT]
[FONT=&quot]To help reduce cardiovascular strain it is advised to[/FONT]
[FONT=&quot]maintain an active cardiovascular exercise program and[/FONT]
[FONT=&quot]minimize the intake of saturated fats, cholesterol, and simple[/FONT]
[FONT=&quot]carbohydrates at all times during active AAS administration.[/FONT]
[FONT=&quot]Supplementing with fish oils (4 grams per day) and a natural[/FONT]
[FONT=&quot]cholesterol/antioxidant formula such as Lipid Stabil or a[/FONT]
[FONT=&quot]product with comparable ingredients is also recommended.[/FONT]
[FONT=&quot]Side Effects (Testosterone Suppression):[/FONT]
[FONT=&quot]All anabolic/androgenic steroids when taken in doses[/FONT]
[FONT=&quot]sufficient to promote muscle gain are expected to suppress[/FONT]
[FONT=&quot]endogenous testosterone production. For sake of comparison,[/FONT]
[FONT=&quot]studies administering 100 mg per week of nandrolone[/FONT]
[FONT=&quot]decanoate for 6 weeks have demonstrated an approximate[/FONT]
[FONT=&quot]57% reduction in serum testosterone levels during therapy.[/FONT]
[FONT=&quot]At a dosage of 300 mg per week, this reduction reached[/FONT]
[FONT=&quot]70%.499 It is believed that the progestational activity of[/FONT]
[FONT=&quot]nandrolone notably contributes to the suppression of[/FONT]
[FONT=&quot]testosterone synthesis during therapy, which can be marked[/FONT]
[FONT=&quot]in spite of a low tendency for estrogen conversion.500[/FONT]
[FONT=&quot]Without the intervention of testosterone-stimulating[/FONT]
[FONT=&quot]substances, testosterone levels should return to normal within[/FONT]
[FONT=&quot]2-6 months of drug secession. Note that prolonged[/FONT]
[FONT=&quot]hypogonadotrophic hypogonadism can develop secondary to[/FONT]
[FONT=&quot]steroid abuse, necessitating medical intervention.[/FONT]
[FONT=&quot] [/FONT]
[FONT=&quot]Administration (Men):[/FONT]
[FONT=&quot]Nandrolone undecanoate was used clinically at a dose of 1[/FONT]
[FONT=&quot]ampule every 1 to 2 weeks. A total of 3 to 6 ampules were[/FONT]
[FONT=&quot]used for a given 6-week period of therapy. When used for[/FONT]
[FONT=&quot]physique- or performance-enhancing purposes, a dose of 3 to[/FONT]
[FONT=&quot]4 ampules (241.5 to 322mg) per week is most common, taken[/FONT]
[FONT=&quot]in cycles 8 to 12 weeks in length. This level is sufficient for[/FONT]
[FONT=&quot]most users to notice measurable gains in lean muscle mass[/FONT]
[FONT=&quot]and strength, which should be accompanied by a low level of[/FONT]
[FONT=&quot]estrogenic and androgenic activity. Higher doses (400-600[/FONT]
[FONT=&quot]mg per week) will impart a stronger anabolic effect, but can[/FONT]
[FONT=&quot]be difficult given the relatively low concentration this steroid[/FONT]
[FONT=&quot]was manufactured in. Instead, many opted to combine this[/FONT]
[FONT=&quot]agent with other anabolic/androgenic steroids for a stronger[/FONT]
[FONT=&quot]effect. Given its properties, it seems to fit well for both[/FONT]
[FONT=&quot]bulking and cutting purposes, and can reasonably replace[/FONT]
[FONT=&quot]Deca-Durabolin in such cycles.[/FONT]
[FONT=&quot]Administration (Women):[/FONT]
[FONT=&quot]Nandrolone undecanoate was used clinically at a dose of 1[/FONT]
[FONT=&quot]ampule every 1 to 2 weeks. A total of 3 to 6 ampules were[/FONT]
[FONT=&quot]used for a given 6-week period of therapy. When used for[/FONT]
[FONT=&quot]physique- or performance-enhancing purposes, a dosage of 1[/FONT]
[FONT=&quot]ampule (80.5 mg) every 10 days was most common, which is[/FONT]
[FONT=&quot]taken for 4 to 6 weeks. Although only slightly androgenic,[/FONT]
[FONT=&quot]women are occasionally confronted with virilization[/FONT]
[FONT=&quot]symptoms when taking this compound. Should virilizing side[/FONT]
[FONT=&quot]effects become a concern, the drug should be discontinued[/FONT]
[FONT=&quot]immediately to help prevent their permanent appearance.[/FONT]
[FONT=&quot]After a sufficient period of withdrawal, the shorter acting[/FONT]
[FONT=&quot]nandrolone Durabolin® might be considered a safer (more[/FONT]
[FONT=&quot]controllable) option. This drug stays active for only several[/FONT]
[FONT=&quot]days, greatly reducing the withdrawal time if indicated.[/FONT]
[FONT=&quot]Availability:[/FONT]
[FONT=&quot]Nandrolone undecanoate is no longer available as a[/FONT]
[FONT=&quot]prescription drug product. Some underground preparations[/FONT]
[FONT=&quot]are, however, known to exist.

By WL
[/FONT][FONT=&quot][/FONT]

Dynabolon®(nandrolone undecanoate) anabolic steroid profile and use in bulking cycle

akn

Musclechemistry Member

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