Silagra 100 is the best medicine used by men to treat sexual problems. This drug is used to treat impotence and erectile dysfunction. This drug is only used by men over 18 years of age. This medicine contains an ingredient called sildenafil which helps men to know strong erection during intercourse. You can also take this medicine before or after a meal. The effect of this drug lasts up to 6 hours. Take this medicine with water but do not break or chew the medicine. Take this medicine as advised by your doctor. You can visit doublepills.com for more information.