Can sildenafil citrate tablets be taken together with tadalafil?

Sildenafil citrate tablets are a drug used to treat erectile dysfunction, and tadalafil is also a drug used to treat male erectile dysfunction. The efficacy and treatment of the two drugs are similar. If both drugs are taken at the same time, there may be side effects due to drug overdose, and in severe cases, it may endanger life. Therefore, it is not recommended to take sildenafil citrate tablets and tadalafil at the same time.