several medications can decrease psa values but i am not aware of any that can raise psa. medications that can decrease psa and thus possibly cause a false negative test include: • finasteride and dutasteride. these treat enlarged prostate. finasteride is also used for male pattern baldness. • anti-inflammatory medicines also called nsaids. this includes naproxen and ibuprofen. • acetaminophen or tylenol • statins to treat high cholesterol • water pills or diuretics things that can increase psa values include: • bph or enlarged prostate • prostate cancer • prostatitis (infection of the prostate) • recent sexual activity • recent urological procedures like cystoscopy • long distance bike riding if your psa value is elevated you should see a urologist and find out what is causing it. find out more information about psa testing in the prostate cancer health center.
what medications can cause a false positive on a psa test?