Avanafil and tadalafil which is more effective, there is no such statement in the clinic, the effect of the two drugs is not much different. 1. Avanafil: usually refers to avanafil tablets, after taking the drug, it has the effect of promoting male penile erection under sexual stimulation. It has a certain therapeutic effect on male erectile dysfunction and other diseases. Long-term blind consumption of Avanafil tablets may cause headache, back pain, breathing difficulties and other discomforts, and is prohibited for use by women. 2. Tadalafil: can be used for erectile dysfunction and other diseases caused by the disease, prolonged overdose of tadalafil tablets, may appear headache, indigestion and other discomforts, allergic to the drug patients are prohibited to use. When using avanafil tablets, tadalafil tablets, should be used under the guidance of a doctor, avoid blind use of medication, in order to avoid the occurrence of uncomfortable reactions.