Take this drug 45 to 60 minutes before. Once taken, do not take it again within 24 hours. Its effectiveness lasts 4 to 5 hours. Drinking alcohol before taking it can cause a temporary impairment in getting erection. Fat rich food should be avoided before taking it.
Do not take silagra 100mg with any of the following:
nitrates like amyl nitrite, isosorbide dinitrate, isosorbide mononitrate, nitroglycerin,
other sildenafil products (Caverta, Silagra, Eriacta, etc.);
silagra 100mg may also interact with the following:
certain drugs for high blood pressure;
certain drugs for the treatment of HIV infection or AIDS;
certain drugs used for fungal or yeast infections, like fluconazole, itraconazole, ketoconazole, and voriconazole;
This list may not describe all possible interactions. Give your health care providers a list of all the medicines, herbs, non-prescription drugs, or dietary supplements you use.
Possible Side Effects:
allergic reactions like skin rash, itching or hives, swelling of the face, lips, or tongue;
changes in hearing;
changes in vision, blurred vision, trouble telling blue from green color;
fast, irregular heartbeat;
men: prolonged or painful erection (lasting more than 4 hours);
Side effects that usually do not require medical attention (report to your doctor or health care professional if they continue or are bothersome):
stuffy or runny nose;
This list may not describe all possible side effects.