Viagra has been designed for the needs of males suffering from erectile dysfunction. It is supposed to be used by male patients only, although such patients are supposed to let their doctor know if they have multiple myeloma, liver problems, heart disease, retinitis pigmentosa, stomach ulcer, coronary artery disease, sickle cell anemia, kidney disease, hemophilia, recent history of a heart attack or congestive heart failure, high or low blood pressure, leukemia, physical deformity of the penis or heart rhythm problems to make sure they are prescribed the correct dose of Viagra. The dose you are prescribed is most commonly 50 mg, but it can be increased or decreased depending on your reaction and how much you are benefitting from the treatment. You will have to be aware of such serious side effects as vision changes, sweating, feeling light-headed, irregular heartbeat, heavy feeling, general ill feeling, swelling in your hands or feet, shortness of breath, sudden hearing loss and pain spreading to the shoulder, even thought they are very rare. Mild side effects like memory problems, headache, redness in your face, warmth in your neck or chest, upset stomach, stuffy nose and back pain are far more common but usually go away after the first couple of times you use Viagra.

You will have to be taking Viagra as required, but not too often. At least 24 hours will be supposed to pass between two doses of this medicine. You will have to make sure you always let your doctor know if you are also planning on starting to take ketoconazole, conivaptan, HIV/AIDS medicine, antidepressants, voriconazole, itraconazole, telithromycin, erythromycin, cimetidine, isoniazid, blood pressure medications, clarithromycin, imatinib or rifampin, because those medications are likely to interact with Viagra. In general, Viagra is likely to work for 80% of males using it. Another question is where you can actually get that reliable Viagra without overpaying for the brand name. After all, generics are just as good because of the active ingredients they contain. You may consider shopping for Viagra online, because this is a way for you and many other people to spend less money while still getting the quality of generic Viagra you deserve. Our comparison page is the right place to go if you are worried about not making the right choice, because we give you an overview of best pharmacies out there, letting you choose one yourself.