Generally, for products of this type, the first thing to look at is the brand. The quality is excellent. Jisbon Tadalafil is independently developed and supplied with independent raw materials. It has obtained 4 national patents and is very safe. The second is the cost-effectiveness. The drug is also effective for 36 hours. One 20mg tablet of Jisibang Tadalafil is the largest dose and the best among similar Tadalafil drugs. I hope you will adopt it. Are you satisfied with my answer? Accept it if you are satisfied