Male sexual function issues, including erectile dysfunction, are treated with silagra. The medication's active component is sildenafil citrate. It is typically used to improve sexual activity by increasing blood flow, which helps a man maintain his erection. You can take silagra with food or without any food. It must be taken exactly as prescribed by your physician. The recommended amount of time to wait before having sex is one hour. Work takes different amounts of time for different people, but it often takes 30 to 1 hour. Follow your doctor's instructions on the dosage and duration of this medication. Take it all in at once. Never shatter, eat, or crush it.