Suhagra 100mg can be taken with food or without food. It must be taken exactly as prescribed by your physician. The recommended amount of time to wait before having sex is one hour. This medication only works in conjunction with sexual stimulation to assist achieve an erection. Although it is highly effective, it must be taken half an hour before engaging in sexual activity. 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. You can take suhagra with or without food, although taking it at a set time is recommended. In case you have taken nitrates recently, avoid using Suhagra 100.