TFM-4AS-1 is a dual selective androgen receptor modulator (SARM) and 5α-reductase inhibitor. It is a potent and selective partial agonist (Emax = 55%) of the androgen receptor (IC50 = 30nM) and inhibitor of 5α-reductase types I and II (IC50 = 2 and 3 nM, respectively).
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