... from its short 6-8 hour half-life, in trial studies, side effects ceased after dosage was discontinued.Side effectsFinasteride is ... the GABA-A receptor, in very large doses in rodent studies.Finasteride can also be used to mask steroid abuse, and ... within 6-12 months of ceasing therapy.[9] In clinical studies, Propecia, like minoxidil, was shown to work on both the ...