Nandrolone phenylpropionate is a rapid-release injectable form of the anabolic steroid nandrolone. Its effects closely resemble those of Deca-Durabolin, which utilizes the slower-acting nandrolone decanoate. The key distinction lies in the release speed; while nandrolone decanoate maintains active levels for around 3 weeks, nandrolone phenylpropionate is effective for approximately 1 week. In clinical use, Deca-Durabolin may be injected every 2-3 weeks, while Durabolin is typically administered every few days to weekly. Both steroids are largely interchangeable in terms of anabolic benefits, with nandrolone phenylpropionate being favored by athletes and bodybuilders for its substantial capacity to enhance strength and promote lean muscle growth without notable estrogenic or androgenic side effects.<\/p>
The structural modification of nandrolone includes the addition of a carboxylic acid ester, specifically the propionic phenyl ester, to the 17-beta hydroxyl group. Esterified steroids exhibit reduced polarity and slower absorption rates post-injection. Once absorbed, the ester is cleaved, releasing free (active) nandrolone. This design prolongs the therapeutic impact, allowing for a less frequent injection schedule compared to unesterified steroids. Nandrolone phenylpropionate delivers a rapid increase in nandrolone levels within 24 to 48 hours after intramuscular injection, tapering back to baseline within a week.<\/p>
Nandrolone demonstrates a minimal propensity for estrogen conversion, roughly 20% of what is observed with testosterone. While the liver can convert nandrolone into estradiol, other active sites, such as adipose tissue, do not convert nandrolone easily, leading to fewer estrogen-related side effects compared to testosterone. However, higher doses may still trigger elevated estrogen levels, resulting in water retention, increased body fat, and gynecomastia. An anti-estrogen, like clomiphene citrate or tamoxifen citrate, may be utilized to manage these potential side effects. Alternatively, aromatase inhibitors such as Arimidex (anastrozole) can be employed to prevent estrogen synthesis more effectively, though they may have additional costs and could negatively affect blood lipids.<\/p>
Importantly, nandrolone also displays progestin activity. The structural modification of 19-norprogesterone allows for a stronger binding affinity at the receptor. As many 19-nor anabolic steroids possess this trait, they can exhibit progestin-like side effects, such as inhibition of testosterone production and increased fat accumulation. The interplay between progestins and estrogens can significantly enhance breast tissue growth, posing a risk for gynecomastia even with lowered estrogen levels. Using an anti-estrogen can effectively counteract these side effects.<\/p>
Despite being an anabolic agent, nandrolone can elicit androgenic side effects, especially at higher doses. Users might experience oily skin, acne, or increased body and facial hair growth. Additionally, androgenic\/anabolic steroids can exacerbate male pattern hair loss. Women may face virilizing effects, such as voice deepening, menstrual changes, skin texture modifications, increased facial hair, and clitoral enlargement. Nandrolone is comparatively less androgenic than other steroids like testosterone, allowing a higher threshold for significant androgenic effects. However, it can suppress natural testosterone levels in men, affecting libido, especially when not combined with another androgen.<\/p>
In androgen-responsive areas like the scalp and prostate, nandrolone’s androgenic impact is mitigated by its conversion to dihydronandrolone (DHN) via the 5-alpha reductase enzyme. The use of 5-alpha reductase inhibitors, such as finasteride, concurrently with nandrolone can hinder its androgenic effects. Therefore, it’s advisable to avoid reductase inhibitors if low androgenicity is desired.<\/p>
Nandrolone is not classified as a c-17 alpha alkylated steroid, and it generally does not pose hepatotoxic risks in healthy individuals. The likelihood of liver toxicity is minimal.<\/p>
Anabolic\/androgenic steroids can adversely affect cholesterol levels, potentially diminishing HDL (good cholesterol) while elevating LDL (bad cholesterol), thereby increasing the risk of arteriosclerosis. The influence of steroids on serum lipids varies based on dosage, administration route, and type of steroid (aromatizable or non-aromatizable). A study with nandrolone decanoate at 600mg per week for 10 weeks resulted in a 26% drop in HDL cholesterol levels, a decline slightly greater than testosterone enanthate. Generally, nandrolone decanoate has a lesser impact on serum lipids than c-17 alpha alkylated steroids. Steroids can also negatively affect blood pressure and triglycerides, diminish endothelial function, and promote left ventricular hypertrophy, increasing the potential for cardiovascular issues.<\/p>
All anabolic\/androgenic steroids, when used in sufficient doses, are likely to suppress endogenous testosterone production. Administration of 100mg of nandrolone decanoate weekly for 6 weeks showed a 57% decrease in serum testosterone levels, rising to a 70% reduction at 300mg per week. The progestational effects of nandrolone play a significant role in this suppression, which persists despite minimal estrogen conversion. Testosterone levels are expected to normalize within 2-6 months post-cessation, but chronic hypogonadotrophic hypogonadism may develop from prolonged use, requiring medical intervention.<\/p>
For general anabolic actions, initial guidelines recommended doses of 25-50mg weekly for 12 weeks. For physique or performance enhancement, dosages range from 200-400mg weekly in cycles of 8-12 weeks, allowing users to achieve noticeable increases in muscle mass and strength. Given the fast-acting properties of the phenylpropionate ester, it is typical to divide weekly doses into two separate administrations.<\/p>
Initially prescriptive advice suggested 25-50mg per week for 12 weeks for general anabolic purposes. For enhancing physique or performance, 50mg weekly is common, administered as a single injection for cycles lasting 4-6 weeks. Caution is advised with higher doses or longer usage due to the risk of androgenic side effects. Although nandrolone phenylpropionate is mildly androgenic, virilization symptoms may still occur in women. If these symptoms arise, discontinuation of the steroid is crucial to avert permanent changes.<\/p>","protected":false},"excerpt":{"rendered":"
British Dragon Durabol 100 is a powerful injectable anabolic steroid containing 100 mg\/ml of Nandrolone Phenylpropionate in a 10 ml vial. Known for its rapid onset of effects, it enhances strength and lean muscle mass with minimal estrogenic and androgenic side effects, making it a top choice for athletes and bodybuilders looking for effective performance enhancement.<\/strong><\/p>","protected":false},"featured_media":827033,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[461],"product_tag":[490,491,486,499,504,488,489],"class_list":{"0":"post-10561","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-nandrolone-phenylpropionate","7":"product_tag-for-men","8":"product_tag-for-women","9":"product_tag-injectable","10":"product_tag-keep-gains","11":"product_tag-nandrolone-phenylpropionate","12":"product_tag-strenght","13":"product_tag-weight-gain","14":"pa_brand-british-dragon","16":"first","17":"outofstock","18":"sale","19":"shipping-taxable","20":"purchasable","21":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/bigman.to\/pt\/wp-json\/wp\/v2\/product\/10561","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/bigman.to\/pt\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/bigman.to\/pt\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/bigman.to\/pt\/wp-json\/wp\/v2\/comments?post=10561"}],"version-history":[{"count":12,"href":"https:\/\/bigman.to\/pt\/wp-json\/wp\/v2\/product\/10561\/revisions"}],"predecessor-version":[{"id":834784,"href":"https:\/\/bigman.to\/pt\/wp-json\/wp\/v2\/product\/10561\/revisions\/834784"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/bigman.to\/pt\/wp-json\/wp\/v2\/media\/827033"}],"wp:attachment":[{"href":"https:\/\/bigman.to\/pt\/wp-json\/wp\/v2\/media?parent=10561"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/bigman.to\/pt\/wp-json\/wp\/v2\/product_brand?post=10561"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/bigman.to\/pt\/wp-json\/wp\/v2\/product_cat?post=10561"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/bigman.to\/pt\/wp-json\/wp\/v2\/product_tag?post=10561"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}