Generic Viagra – is Sildenafil Citrate pill. Usually it is used for efficient treatment of man’s erectile dysfunction problems. Before you start to use this medicine, please inform your doctor if you have any of such problems: • an unusual reaction to Sildenafil Citrate • an allergic reaction to other medicines or foods • liver disease • kidney disease • stroke • breast-feeding • pregnant or trying to get pregnant • and especially if you have vision problems or eye problem • retinitis pigmentosa Usually these pills are taking with water. Take a glass of water and swallow the pill. It is necessary to take the dose one hour before future intercourse. It is important that you will not take more than one dose per day. No need to take it more often than directed. Call immediately your poison control center if you overtake Viagra. Do not give this medicine to other persons because it is prescribed only for you. Following medicine will interact with Viagra, do not take it together: • methscopolamine nitrate • cisapride • nitroprusside • amyl nitrite, isosorbide dinitrate • nitroglycerin • isosorbide mononitrate • Revatio Additionally with Viagra can interact next drugs: • pills for the treatment of AIDS or HIV infection • nitroglycerin • cimetidine • rifampin • pills used for fungal infections, like itraconazole, fluconazole, ketoconazole • erythromycin It is not all possible drugs which can interact with Viagra. You should attentively provide your doctor with complete list of what you are using: non-prescription drugs, herbs, even dietary supplements. Additionally provide if you drink alcohol, smoke or even use illegal drugs. Because your doctor will check thoroughly if it can interact with Viagra. If you have any problems with your eyes or vision, immediately inform your doctor! If you have more than four hours erection, you should inform your doctor too, because it can indicate the beginning of serious problems and necessary to stop it at once. Viagra does not protect you from HIV infection. So additionally use condoms. When you start sexual intercourse and start to feel dizziness, nausea, arm pain or chest pain, please stop the activity and contact with your doctor. Possible side effects about which you should inform your doctor: • breathing problems • changes in hearing • allergic reactions • vision changes • irregular heartbeat • chest pain • prolonged erection for more than 4 hours Next side effects do not require medical influence: • headache • diarrhea • indigestion • flushing • stuffy or runny nose You should store your Viagra in place where nobody, especially children, can get it. Keep it at room temperature between 59 and 86 degrees F (15 and 30 degrees C). And do not use medicine after its expiration date.