Tadaflo 5 mg should be taken orally with a full glass of water, once daily, at approximately the same time each day. It can be taken with or without food. For the treatment of erectile dysfunction, it can be taken as needed, but for the treatment of BPH, it should be taken regularly. The effects of Tadaflo 5 mg can last for up to 36 hours after taking the medication, which allows for more flexibility in sexual activity compared to other medications used to treat ED and BPH. https://www.genericday.com/tadaflo-5-mg.html