 [ Symptoms ] if i discontinue taking avodart for my enlarged prostate will my psa readings go back to normal [ Disease ] in general both dutasteride avodart and finasteride formerly trade name of proscar cause the psa to decrease by about 12 after continuous use for about 6 months results in individual men will vary due to a multitude of factors such as the size of the prostate underlying prostatitis prostate inflamation sexual activity or lack thereof before the psa test vigorous exercise such as riding a bike before the test and likely other individual factors such as obesity statin use hormonal testosterone levels and other factors we have yet to discover