Propecia (finasteride) is used to treat mild to moderate male pattern hair loss in men. Researchers from Boston University School of Medicine, in collaboration with colleagues at Lahey Clinic and from Denmark and Germany, have found that Propecia produces significant adverse effects in some individuals including loss of libido, erectile dysfunction, ejaculatory dysfunction and potential depression. If you or someone you know has suffered permanent sexual side affects after taking Propecia, including loss of libido, difficulty obtaining or maintaining an erection, or decrease semen production, you may be entitled to compensation. Call us toll-free at (800) 585-1190 to discuss your legal rights.