What is Viagra? Viagra (sildenafil) relaxes muscles and increases blood flow to certain places with the body. Sildenafil under the name Viagra is applied to treat erectile dysfunction (impotence) in males. An additional brand of sildenafil is Revatio, that is utilised to treat pulmonary arterial hypertension and boost workout capacity in men and women. Usually do not take Viagra when also taking Revatio, unless your medical professional tells you to. Viagra may perhaps also be utilized for other purposes not listed within this medication guide. Important information about Viagra Tend not to take Viagra in case you are also utilizing a nitrate drug for chest pain or heart problems. This incorporates nitroglycerin (Nitrostat, Nitrolingual, Nitro-Dur, Nitro-Bid, and other people), isosorbide dinitrate (Dilatrate-SR, Isordil, Sorbitrate), and isosorbide mononitrate (Imdur, ISMO, Monoket). Nitrates are also located in some recreational drugs including amyl nitrate or nitrite ("poppers"). Taking Viagra using a nitrate medicine may cause a sudden and severe decrease in blood pressure. During sexual activity, if you grow to be dizzy or nauseated, or have pain, numbness, or tingling inside your chest, arms, neck, or jaw, cease and contact your medical doctor instantly. You may be getting a really serious side effect of Viagra. Tend not to take Viagra greater than once a day. Allow 24 hours to pass among doses. Get in touch with your physician or seek emergency medical interest in case your erection is painful or lasts longer than four hours. A prolonged erection (priapism) can harm the penis. Viagra can lower blood flow towards the optic nerve of your eye, causing sudden vision loss. This has occurred inside a small number of people today taking Viagra, the majority of whom also had heart illness, diabetes, high blood pressure, high cholesterol, or specific pre-existing eye issues, and in people who smoke or are over 50 years old. It is not clear whether or not Viagra could be the actual cause of vision loss. Quit working with Viagra and get emergency medical enable if you have sudden vision loss. Before taking Viagra Do not take Viagra for anyone who is also working with a nitrate drug for chest pain or heart challenges. This consists of nitroglycerin (Nitrostat, Nitrolingual, Nitro-Dur, Nitro-Bid, and others), isosorbide dinitrate (Dilatrate-SR, Isordil, Sorbitrate), and isosorbide mononitrate (Imdur, ISMO, Monoket). Nitrates are also discovered in some recreational drugs including amyl nitrate or nitrite ("poppers"). Taking Viagra using a nitrate medicine can cause a sudden and severe reduce in blood pressure. To produce sure you'll be able to safely take Viagra, inform your medical doctor when you've got any of those other situations: heart illness or heart rhythm difficulties; a current background (in the past 6 months) of a heart attack, stroke, or congestive heart failure; high or low blood pressure; coronary artery disease; liver or kidney diseas; a blood cell disorder like sickle cell anemia, multiple myeloma, or leukemia; a bleeding disorder which include hemophilia; a stomach ulcer; retinitis pigmentosa (an inherited condition of your eye); a physical deformity of your penis (including Peyronie's illness); or should you have been told you'll want to not have sexual intercourse for well being motives. how viagra works in the body Viagra can lower blood flow towards the optic nerve on the eye, causing sudden vision loss. This has occurred within a smaller quantity of individuals taking Viagra, most of whom also had heart disease, diabetes, high blood pressure, high cholesterol, or certain pre-existing eye challenges, and in people who smoke or are over 50 years old. It isn't clear irrespective of whether Viagra will be the actual trigger of vision loss. Quit applying Viagra and get emergency healthcare assist when you have sudden vision loss. FDA pregnancy category B: This medication will not be expected to become damaging to an unborn child. Tend not to use Viagra without having telling your medical professional in case you are pregnant or plan to develop into pregnant for the duration of remedy. It's not known if sildenafil passes into breast milk or if it could harm a nursing baby. Do not use this medication with no telling your physician if you're breast-feeding a infant. See also: Viagra pregnancy and breastfeeding warnings (in far more detail) How really should I take Viagra? Take Viagra exactly as prescribed by your physician. Tend not to take in bigger or smaller amounts or for longer than suggested. Stick to the directions in your prescription label. Viagra is usually taken only when required, 30 minutes to 1 hour just before sexual activity. You could take it up to four hours just before sexual activity. Don't take Viagra more than when per day. Viagra will help you've got an erection when sexual stimulation happens. An erection will not take place just by taking a pill. Stick to your doctor's directions. Through sexual activity, should you turn into dizzy or nauseated, or have discomfort, numbness, or tingling in your chest, arms, neck, or jaw, stop and get in touch with your medical professional instantly. You can be having a significant side impact of Viagra. Shop this medication at space temperature away from moisture and heat. See also: Viagra dosage (in much more detail) What happens if I miss a dose? Viagra is utilized as needed, so that you are not likely to be on a dosing schedule. What takes place if I overdose? Seek emergency medical consideration or contact the Poison Aid line at 1-800-222-1222. Overdose signs and symptoms may possibly incorporate chest discomfort, nausea, irregular heartbeat, and feeling light-headed or fainting. What really should I stay away from when taking Viagra? Steer clear of drinking alcohol, which can raise many of the negative effects of Viagra. Steer clear of working with other medicines to treat impotence, which include alprostadil (Caverject, Muse, Edex) or yohimbine (Yocon, Yodoxin, other people), with out first talking to your doctor. See also: Viagra and alcohol (in additional detail) Viagra side effects Get emergency medical help should you have any of those indicators of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat. During sexual activity, should you turn out to be dizzy or nauseated, or have discomfort, numbness, or tingling within your chest, arms, neck, or jaw, cease and get in touch with your physician immediately. You may be possessing a critical side effect of Viagra. Stop working with Viagra and get in touch with your physician at when should you have a severe side effect like: sudden vision loss; ringing within your ears, or sudden hearing loss; chest discomfort or heavy feeling, pain spreading for the arm or shoulder, nausea, sweating, general ill feeling; irregular heartbeat; swelling in your hands, ankles, or feet; shortness of breath; vision adjustments; feeling light-headed, fainting; or penis erection that is certainly painful or lasts four hours or longer. Less severe Viagra side effects may well include: warmth or redness in your face, neck, or chest; stuffy nose; headache; memory issues; upset stomach; or back discomfort. This can be not a complete list of side effects and others may possibly take place. Contact your doctor for health-related tips about unwanted side effects. You could possibly report unwanted side effects to FDA at 1-800-FDA-1088. See also: Viagra unwanted effects (in much more detail) What other drugs will impact Viagra? Tend not to take Viagra with equivalent drugs for instance tadalafil (Cialis) or vardenafil (Levitra). Usually do not take Viagra when you are also making use of a nitrate drug for chest pain or heart troubles, like nitroglycerin (Nitrostat, Nitrolingual, Nitro-Dur, Nitro-Bid, Minitran, Deponit, Transderm-Nitro), isosorbide dinitrate (Dilatrate-SR, Isordil, Sorbitrate), and isosorbide mononitrate (Imdur, ISMO, Monoket), or recreational drugs including amyl nitrate or nitrite ("poppers"). Just before taking Viagra, tell your physician about all other medications you use for erectile dysfunction, or for anyone who is applying any in the following drugs: bosentan (Tracleer); cimetidine (Tagamet, Tagamet HB); conivaptan (Vaprisol); imatinib (Gleevec); isoniazid (for treating tuberculosis); rifampin (Rifadin, Rimactane, Rifater, Rifamate); an antidepressant like nefazodone; an antibiotic like clarithromycin (Biaxin), dalfopristin/quinupristin (Synercid), erythromycin (E.E.S., EryPed, Ery-Tab, Erythrocin, Pediazole) or telithromycin (Ketek); antifungal medication such as itraconazole (Sporanox), ketoconazole (Nizoral), miconazole (Oravig), or voriconazole (Vfend); heart or blood pressure medication for instance diltiazem (Cardizem, Dilacor, Tiazac), doxazosin (Cardura), nicardipine (Cardene), quinidine (Quin-G), or verapamil (Calan, Covera, Isoptin, Verelan); or HIV/AIDS medicine for instance atazanavir (Reyataz), delavirdine (Rescriptor), fosamprenavir (Lexiva), indinavir (Crixivan), nelfinavir (Viracept), saquinavir (Invirase), or ritonavir (Norvir, Kaletra). This list will not be total and there could possibly be other drugs that could interact with Viagra. Tell your medical professional about all of the prescription and over-the-counter medicines you use. This contains vitamins, minerals, herbal products, and drugs prescribed by other physicians. Don't start using a new medication devoid of telling your physician. Viagra