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Serum Hormone Concentrations During Chronic Use of AASs or Drugs That Increase Endogenous AASs
| AAS Used | Testosterone | FSH | LH |
|---|---|---|---|
| Testosterone | ↑ | ↓ | ↓ |
| Testosterone precursorsa,b | ↑ | ↓ | ↓ |
| Nontestosterone AAS | ↓ | ↓ | ↓ |
| hCGb | ↑ | ↓ | ↓ |
| Aromatase inhibitor aloneb | ↑ | ↑ | ↑ |
| Clomipheneb | ↑ | ↑ | ↑ |
High dosages of precursors required.
Not technically AAS; see text.
