Cenforce Professional pill is used to treat erectile dysfunction in men. The drug contains an ingredient called sildenafil citrate, which works to relax muscles by increasing blood circulation in the arteries of the penis. This drug should only be taken by men over 18 years of age. This can be used up to 1 hour before sexual activity. The effect of this drug lasts for about 36 hours. It is advisable to take this medicine only once a day.