This page provides an educational overview of anabolic-androgenic compounds from a physiology and health perspective, without promoting use.
What Are Anabolics?
Anabolic-androgenic steroids (AAS) are synthetic derivatives of testosterone. They interact with the androgen receptor and can:
- Increase muscle protein synthesis
- Enhance nitrogen retention
- Stimulate red blood cell production
- Influence mood, drive and recovery
Different compounds vary in their ratio of anabolic (tissue-building) and androgenic (masculinizing) effects.
Main Families of Anabolic Compounds
1. Testosterone and Derivatives
The base hormone and its esters form the foundation of most anabolic discussions.
Examples:
- /anabolics/testosterone/
- /anabolics/turinabol/
2. 19-Nor Compounds
19-nor derivatives are modified testosterone molecules with distinct effects on strength, recovery and side-effect profiles.
Examples:
- /anabolics/nandrolone/
- /anabolics/trenbolone/
3. DHT-Derived Compounds
Dihydrotestosterone (DHT) derivatives generally do not aromatize to estrogen and are often associated with harder, drier-looking physiques but more pronounced androgenic effects.
Examples:
- /anabolics/masteron/
- /anabolics/anavar/
- /anabolics/winstrol/
- /anabolics/primobolan/
Endocrine System Effects
All anabolic steroids suppress the hypothalamic–pituitary–gonadal (HPG) axis to some degree:
- Reduced GnRH secretion from the hypothalamus
- Lower LH and FSH from the pituitary
- Decreased endogenous testosterone production in the testes
This suppression can persist for weeks to months after use and may affect fertility, libido and mood.
Key Laboratory Markers
When anabolics are discussed in a medical context, typical blood markers include:
- Total testosterone and free testosterone
- LH and FSH
- Estradiol (E2)
- Prolactin (specific compounds)
- Hematocrit and hemoglobin
- Lipid panel (HDL, LDL, triglycerides)
- Liver enzymes (ALT, AST)
Cardiometabolic Health
Anabolic steroids can unfavorably shift cardiometabolic risk markers:
- Lower HDL (“good”) cholesterol
- Increase LDL
- Raise blood pressure
- Increase blood viscosity via higher hematocrit
These changes are especially important in regions like Thailand where lifestyle, diet and climate already influence cardiovascular risk.
Thailand-Specific Health Context
In Thailand, especially in cities like Bangkok, Phuket and Pattaya, there is easy access to private hospitals and laboratories where individuals can request:
- Hormone panels
- Lipid profiles
- Liver function tests
- Hematology screens
Awareness of how anabolics affect these markers is essential for any medical evaluation.
For detailed physiology, endocrine impact and health considerations of specific compounds, see the compound-level articles below.
Key Anabolic Compounds Covered
- /anabolics/testosterone/
- /anabolics/trenbolone/
- /anabolics/nandrolone/
- /anabolics/dianabol/
- /anabolics/anavar/
- /anabolics/winstrol/
- /anabolics/masteron/
- /anabolics/primobolan/
- /anabolics/boldenone/
- /anabolics/turinabol/
Related Pages
- /peptides/
- /glp-1/
- /growth-hormone/
Read the Selected Compound Guides
Read the testosterone guide for this androgen hormone and its medical-use context, or the trenbolone guide for an anabolic steroid described by DEA as veterinary-only in its US overview. AndroGel description; DEA overview.
For other classifications, see somatropin (HGH), a recombinant human growth hormone protein, and tadalafil, a PDE5 inhibitor medicine. Genotropin description; EMA Cialis overview.
