Pharmacological effect
Long acting anabolic steroid. It stimulates protein synthesis in the body, contributes to the retention of nitrogen, calcium, sodium, potassium, chlorides and phosphorus in the body. It promotes the fixation of calcium in the bones, an increase in bone mass in osteoporosis. It causes an increase in appetite, an increase in muscle mass with a corresponding increase in body weight. In women with disseminated breast cancer, the condition improves over several months. Characterized by long-term action.
NPP – Nandrolone phenylpropionate – causes a powerful and long-lasting anabolic effect, promoting protein synthesis, positive nitrogen balance and stimulating appetite. The anabolic effect occurs 3 days after injection, peaks on day 7 and lasts at least 3 weeks. The androgenic effect manifests itself weakly.

Although Deca-Durabolin is not the optimal steroid for competition preparation, for many athletes it performs well during this period. Before competitions with doping control, you should not take Deco, because. the breakdown products of the drug in the body are found in the urine even after several months
Those who do not feel threatened by such controls can use Deco as a powerful anabolic drug at 400mg per week.
Read also about Clitoromegaly “Medical Condition”
Side effects
The possible phenomena of aromatization and water retention in the body (by the way, when taking Deca, which manifest themselves to a much lesser extent than when taking injectable testosterones) can be minimized by taking Nolvadex and Proviron together.
The combination that bodybuilders usually use to prepare for competitions is: Deca-Durabolin 400mg per week plus Winstrol 50mg per day plus Parabolan 228mg per week plus Oxandrolone 25mg per day.
Side effects when taking Deca are relatively small, but nevertheless, at doses above 400 mg per week, aromatization and other phenomena are quite possible due to too high levels of androgens in the body : high blood pressure, increased activity of the sebaceous glands, progressive acne, which slows down the process of blood clotting, which often results in frequent nosebleeds and bleeding wounds that do not heal for a long time.
Some athletes speak of headaches and sexual hyperstimulation. When taking very high doses for a long time, men may also experience delayed spermatogenesis, i.e. the testicles will produce less testosterone because Deca-Durabolin, like almost all steroids, causes a delay in the release of gonadotropins from the pituitary gland.
Women on doses around 200mg per week usually do not have major problems with Deca. When using higher doses, masculinization phenomena may occur: decrease in voice timbre (often irreversible), increase in body hair, acne, increased libido, and sometimes clitoral hypertrophy. Women who have similar issues with Deca-Durabolin, even at 50mg per week, would be better off using the faster-acting, milder Durabolin. With one or two injections of 50mg Durabolin per week, there is no unwanted androgen buildup, unlike long-acting Deca. Deca provides muscle growth through increased protein synthesis, and Oxandrolone, due to increased creatine phosphate synthesis, provides strength gains with very little water retention.
Side effects for men and women:
In men and women: progression of atherosclerosis (increased LDL concentration and decreased HDL concentration), iron deficiency anemia, peripheral oedema, dyspeptic disorders (abdominal and epigastric pain, nausea, vomiting), impaired liver function with jaundice, leukemia-like syndrome (changes in white blood cell count, long bone pain), hypocoagulation with bleeding tendency, hepatonecrosis (dark stools, vomiting blood, headache, malaise, respiratory failure), hepatocellular carcinoma , hepatic purpura (dark urine, stool discoloration, urticaria, spot or macular haemorrhagic eruptions on the skin and mucous membranes, pharyngitis or tonsillitis), cholestatic hepatitis (yellow discoloration of the sclera and skin, pain in the right hypochondrium, dark urine, discolored stools).

In women:
virilism (enlargement of the clitoris, hoarse voice, dys- and amenorrhea, male-type hairiness), hypercalcemia (CNS depression, nausea, vomiting, fatigue).
For men:
- in the prepubertal period: virilism (acne, penis enlargement, priapism, formation of secondary sexual characteristics), idiopathic hyperpigmentation of the skin, slowing or arrest of growth (calcification of the epiphyseal growth zones of the tubular bones);
- in the postpubertal period – irritation of the bladder (increased frequency of impulses), compaction of the mammary glands, gynecomastia, priapism, in old age – hypertrophy and / or carcinoma of the prostate.