Suhagra 100 pill is helpful for men who are unable to achieve an erection. The main active ingredient is tadalafil. This pill helps relax muscles by increasing blood flow to the penis. With the help of medicine, you can get a better erection during lovemaking sessions. This pill should be taken 1 hour before sexual intercourse. The effect of this pill lasts for 4 to 5 hours during sexual intercourse.