One excellent medicine for male impotence is Tadarise 20 Mg. This medicine is effective in treating erectile dysfunction. Take this medication half an hour before engaging in sexual activity with your partner to ensure that you can have sex. Tadalafil contains a substance that helps increase blood flow to the penile tissue in men. Adhere to your doctor's instructions when using this medication. The effects of this medication take 36 hours to manifest. You can take this medication with or without food.