Pregnyl (HCG) – Human Chorionic Gonadotropin

Pregnyl is a form of Human Chorionic Gonadotropin (HCG), a peptide hormone naturally produced during pregnancy. In bodybuilding, HCG is commonly used post-cycle, particularly after a course of anabolic steroid use, to restore natural testosterone production.

Anabolic steroids suppress the hypothalamic-pituitary-gonadal (HPG) axis, which in turn inhibits the body’s natural testosterone production. This suppression can lead to undesirable side effects, such as testicular atrophy and a decline in strength, libido, and overall vitality. HCG works by mimicking luteinizing hormone (LH), which signals the testes to produce testosterone.

When administered, typically via intramuscular or subcutaneous injection, HCG stimulates the Leydig cells in the testes to boost endogenous testosterone levels, aiding in the recovery of natural hormone production. This is crucial during the post-cycle phase to help maintain muscle mass, prevent muscle loss, and avoid potential disruptions to the body’s endocrine system.

HCG is also known to help preserve gains made during a steroid cycle, especially when used as part of a comprehensive post-cycle therapy (PCT) regimen. It can assist in minimizing the “crash” phase after steroid use, reducing the risk of fat gain and muscle degradation that often occurs when steroid use is abruptly stopped.

Key Benefits of HCG:

1. Restoration of Natural Testosterone Levels: Helps recover testosterone production after a steroid cycle, reducing the risk of low testosterone-related side effects.

2. Prevention of Testicular Atrophy: Helps maintain testicular size and function, which are often reduced during anabolic steroid use.

3. Maintenance of Muscle Gains: Supports the preservation of lean muscle mass after a steroid cycle by stimulating testosterone production.

4. Enhancement of Recovery: Speeds up recovery of the HPG axis, leading to better overall recovery, mood stability, and energy levels.

Administration and Dosage:
HCG is usually injected under the skin (subcutaneously) or into the muscle (intramuscularly). Dosage varies depending on the individual’s needs, the length of the steroid cycle, and whether it is being used for post-cycle therapy. Typically, dosages range from 1,000 to 2,000 IU every 2 to 3 days during the recovery phase. It’s always recommended to follow proper medical advice when using HCG.