Tadalafil tablets are usually eaten for one to three weeks on the treatment of impotence has a certain auxiliary effect, but can not achieve the effect of a complete cure, the specific circumstances need to be under the guidance of a doctor to use the drug. Tadalafil tablets are mainly used for the treatment of male erectile dysfunction, the drug is usually taken for one to three weeks on the treatment of impotence has a greater help. Long-term use of the drug may cause dizziness, abdominal pain and other adverse reactions, the drug is prohibited and nitrate drugs, liver and kidney insufficiency and other people with caution. Impotence belongs to functional or organic lesions, for impotence patients, the main thing is to improve penile erection, so that you can return to normal sex life. Impotence can be treated with drugs such as sildenafil citrate tablets and tadalafil under doctor’s supervision. The above drugs should be used under the guidance of a doctor, and should not be used on their own to avoid adverse reactions.