Nandrolone Decanoate is an anabolic-androgenic steroid (AAS) used medically to treat muscle wasting, severe weight loss, and certain types of anemia. It helps increase muscle mass, bone density, and red blood cell production. In humans, it is sometimes misused for bodybuilding or performance enhancement, but such use carries significant health risks.

Mechanism of action:
Nandrolone binds to androgen receptors in muscles and bones. This stimulates protein synthesis, nitrogen retention, and red blood cell production, promoting muscle growth, improved strength, and bone health.

Uses:

• Medical treatment: muscle wasting from chronic illness, severe malnutrition, or osteoporosis

• Anemia: stimulates red blood cell production in certain types of anemia

• Sometimes misused for bodybuilding or athletic performance (not medically recommended)

Adverse effects:
Common side effects include acne, oily skin, fluid retention, and increased appetite. Serious side effects may include:

• Hormonal imbalances (low natural testosterone, infertility, testicular shrinkage)

• Liver toxicity

• Heart problems (high blood pressure, cholesterol changes, risk of heart attack or stroke)

• Mood changes (aggression, irritability)

• Virilization in women (deepened voice, facial hair, menstrual irregularities)