Selective androgen receptor modulator (SARMs)

SARMs provide the ability to design molecules that can be delivered orally, but that selectively target the androgen receptors in different tissues differently. They are intended to have the same kind of effects as androgenic anabolic steroids but be much more selective in their action. One substantial advantage of SARMs developed to date is that they are all orally active without causing liver damage, whereas most anabolic steroids are not active orally and must be injected, and those anabolic steroids that are orally active tend to cause dose-dependent liver damage.