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Nandrolone Phenypropionate is long acting oily preparation which releases the drug slowly after intramuscular administration. This leads to prolonged duration of action and infrequent dosage schedule.
Because nandrolone is not broken down into DHT, the deleterious effects common to most anabolic steroids on the scalp, skin, and prostate are lessened to a degree. The lack of alkylation on the 17a-carbon drastically reduces the drug's liver toxicity. Estrogenic effects resulting from reaction with aromatase are also mitigated as a result of the drug being a progestin, but effects such as gynaecomastia and reduced libido still occur in larger doses. Other side-effects can include erectile dysfunction and cardiovascular damage, as well as several ailments resulting from the drug's effect of lowering levels of luteinizing hormone through negative feedback.
Durobolic has a relatively week androgenic effect. Virilisation of foetus may occur if used during pregnancy. Prolonged treatment with high doses in prepuberty in children may cause closure of epiphyses. Unlike 17-alpha Alkyl substituted steroids, is not associated increases risk of liver damage.
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