Tadaflo 5 mg helps men with ED achieve and maintain an erection by enhancing the blood flow to the penis during sexual stimulation. It does not cause spontaneous erections and requires sexual arousal to be effective. If Tadaflo 5 mg is indeed a Tadalafil product, the "5 mg" likely refers to the dosage strength. Tadaflo 5 mg works by increasing blood flow to certain areas of the body, and the appropriate dosage can vary depending on the individual and the condition being treated.