Intagra® has its side effects. The most common are:
Sometimes you can experience:
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
prolonged or painful erection (lasting more than 4 hours)
Side effects manifestations are not only depend on medicine you are taking but also depend on your health state and on the other factors.
Do not take Intagra® if you take cisapride, methscopolamine nitrate, nitrates like amyl nitrite, isosorbide dinitrate, isosorbide mononitrate, nitroglycerin, nitroprusside, other sildenafil products (Revatio).
Intagra® may also interact with 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, cimetidine, erythromycin, rifampin.
Do not take Intagra® if you are allergic to Intagra® components.
Be careful with Intagra® if you have eye or vision problems, including a rare inherited eye disease called retinitis pigmentosa, heart disease, angina, high or low blood pressure, a history of heart attack, or other heart problems, kidney disease, liver disease, stroke, an unusual or allergic reaction to sildenafil, other medicines, foods, dyes, or preservatives.
Contact you doctor or health care professional right away if the erection lasts longer than 4 hours or if it becomes painful.
If you notice any changes in your vision while taking this drug, call your doctor or health care professional as soon as possible.
Intagra® doesn't protect you and your partner from sexually transmitted diseases (including HIV) and from pregnancy.