Table 1. Biological proprieties of the commonly used anabolic androgenic steroids (AAS).
| AAS | Substrate for aromatization | Substrate for 5-alpha reductase |
|---|---|---|
| Testosterone | + | + |
| Boldenone | + | + |
| Metadione | + | + |
| Nortestosterone | + | + |
| Metandienone | + | + |
| Fluoxymesterone | + | - |
| Formebolone | + | - |
| Nadrolone | + | - |
| Bolandiola | + | - |
| Oxymetholone | + | Already 5-alpha reduced |
| Stanazol | - | + |
| Oxandrolone | - | + |
| Trenbolone | - | + |
| Danazol | - | + |
| Dostranolone | - | + |
| Metenolone | - | Already 5-alpha reduced |
| Clostebol | - | - |
| Gestrinone | - | - |
| Tetrahydrogestrinone | - | - |
aNadrolone precursors.