What Is Tadacip 20mg? What Is It Used For? If you have been doing erectile dysfunction exercises and if you have even gone so far as to get an erectile dysfunction test done, it would be a safe bet to assume that you know very well that you are suffering from erectile dysfunction and it would also be a very safe bet to say that you are seeking treatment for this serious issue. Well, there is excellent news for you and that news is that the treatment for this issue is available right here in the form of the drug known as Tadacip. This drug works by increasing the flow of blood to your penis and giving you a very hard and stiff erection, thus enabling you to have much better sex for a very long time. What Are The Side Effects Of Tadacip 20mg? Men from all over the world use this drug in varying doses like a very minimal dose such as Tadacip 5mg and also stronger doses like Tadacip 40 mg and most of these men have not reported any side effects. In case you see side effects in you as a result of taking this drug, see a physician at once. There are certain men who after taking this medication, could see some side effects which include lack of energy, swelling of the eyes, difficulties in photosensitivity, vertigo, flushing, temporal headaches, increased blood pressure, sleepiness, nasal catarrh, gastric issues, tiredness, nasal congestion, irregular heartbeat, smarting eyes, nausea, fatigue, apathy, diarrhea, hyperhidrosis, vomiting, neck rash and priapism.