What is Viagra? Viagra (sildenafil) relaxes muscles and increases blood flow to distinct areas of the body. Sildenafil beneath the name Viagra is used to treat erectile dysfunction (impotence) in guys. An additional brand of sildenafil is Revatio, which is utilised to treat pulmonary arterial hypertension and boost workout capacity in women and men. Do not take Viagra even though also taking Revatio, unless your medical professional tells you to. Viagra may well also be applied for other purposes not listed in this medication guide. Important info about Viagra Do not take Viagra when you are also applying a nitrate drug for chest pain or heart issues. This includes nitroglycerin (Nitrostat, Nitrolingual, Nitro-Dur, Nitro-Bid, and others), isosorbide dinitrate (Dilatrate-SR, Isordil, Sorbitrate), and isosorbide mononitrate (Imdur, ISMO, Monoket). Nitrates are also found in some recreational drugs like amyl nitrate or nitrite ("poppers"). Taking Viagra using a nitrate medicine can cause a sudden and severe decrease in blood pressure. For the duration of sexual activity, when you develop into dizzy or nauseated, or have discomfort, numbness, or tingling within your chest, arms, neck, or jaw, cease and contact your medical professional instantly. You can be obtaining a serious side effect of Viagra. Do not take Viagra more than once per day. Enable 24 hours to pass amongst doses. Get in touch with your medical professional or seek emergency medical interest if your erection is painful or lasts longer than 4 hours. A prolonged erection (priapism) can damage the penis. Viagra can decrease blood flow to the optic nerve from the eye, causing sudden vision loss. This has occurred in a tiny quantity of men and women taking Viagra, most of whom also had heart disease, diabetes, high blood pressure, high cholesterol, or specific pre-existing eye difficulties, and in individuals who smoke or are more than 50 years old. It isn't clear irrespective of whether Viagra will be the actual trigger of vision loss. Cease applying Viagra and get emergency health-related assist in case you have sudden vision loss. Before taking Viagra Tend not to take Viagra should you be also employing a nitrate drug for chest pain or heart difficulties. 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 discovered in some recreational drugs like amyl nitrate or nitrite ("poppers"). Taking Viagra using a nitrate medicine may cause a sudden and severe decrease in blood pressure. To make sure you could safely take Viagra, inform your physician for those who have any of these other circumstances: heart disease or heart rhythm issues; a current background (in the past 6 months) of a heart attack, stroke, or congestive heart failure; high or low blood pressure; coronary artery illness; liver or kidney diseas; a blood cell disorder like sickle cell anemia, a number of myeloma, or leukemia; a bleeding disorder like hemophilia; a stomach ulcer; retinitis pigmentosa (an inherited situation of the eye); a physical deformity from the penis (which include Peyronie's illness); or for those who have been told you must not have sexual intercourse for well being causes. uk buy online viagra Viagra can lower blood flow towards the optic nerve on the eye, causing sudden vision loss. This has occurred inside a modest number of people taking Viagra, most of whom also had heart illness, diabetes, high blood pressure, high cholesterol, or certain pre-existing eye issues, and in individuals who smoke or are more than 50 years old. It's not clear no matter whether Viagra is definitely the actual bring about of vision loss. Stop applying Viagra and get emergency health-related assistance when you have sudden vision loss. FDA pregnancy category B: This medication isn't expected to be damaging to an unborn baby. Do not use Viagra with out telling your medical doctor when you are pregnant or program to come to be pregnant during 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 medical doctor when you are breast-feeding a child. See also: Viagra pregnancy and breastfeeding warnings (in much more detail) How must I take Viagra? Take Viagra exactly as prescribed by your physician. Don't take in larger or smaller amounts or for longer than advised. Stick to the directions in your prescription label. Viagra is generally taken only when needed, 30 minutes to 1 hour just before sexual activity. You may take it as much as four hours before sexual activity. Don't take Viagra greater than after per day. Viagra will help you have an erection when sexual stimulation occurs. An erection won't take place just by taking a pill. Comply with your doctor's directions. For the duration of sexual activity, in the event you turn into dizzy or nauseated, or have discomfort, numbness, or tingling in your chest, arms, neck, or jaw, stop and contact your doctor straight away. You could be having a really serious side impact of Viagra. Shop this medication at space temperature away from moisture and heat. See also: Viagra dosage (in far more detail) What takes place if I miss a dose? Viagra is made use of as necessary, so you might be not likely to become on a dosing schedule. What occurs if I overdose? Seek emergency healthcare attention or get in touch with the Poison Aid line at 1-800-222-1222. Overdose signs and symptoms may perhaps contain chest pain, nausea, irregular heartbeat, and feeling light-headed or fainting. What need to I steer clear of although taking Viagra? Prevent drinking alcohol, which can increase a number of the negative effects of Viagra. Stay away from applying other medicines to treat impotence, like alprostadil (Caverject, Muse, Edex) or yohimbine (Yocon, Yodoxin, other people), with no initially talking to your medical doctor. See also: Viagra and alcohol (in more detail) Viagra side effects Get emergency medical assistance when you have any of those signs of an allergic reaction: hives; difficulty breathing; swelling of the face, lips, tongue, or throat. Throughout sexual activity, should you come to be dizzy or nauseated, or have pain, numbness, or tingling within your chest, arms, neck, or jaw, quit and get in touch with your doctor right away. You can be having a significant side impact of Viagra. Cease employing Viagra and get in touch with your medical doctor at the moment when you've got a really serious side effect including: sudden vision loss; ringing in your ears, or sudden hearing loss; chest pain or heavy feeling, discomfort spreading towards the arm or shoulder, nausea, sweating, general ill feeling; irregular heartbeat; swelling inside your hands, ankles, or feet; shortness of breath; vision adjustments; feeling light-headed, fainting; or penis erection which is painful or lasts 4 hours or longer. Less critical Viagra unwanted effects might consist of: warmth or redness inside your face, neck, or chest; stuffy nose; headache; memory challenges; upset stomach; or back discomfort. This really is not a total list of unwanted effects and other individuals might take place. Contact your doctor for healthcare tips about unwanted effects. You could possibly report unwanted side effects to FDA at 1-800-FDA-1088. See also: Viagra unwanted side effects (in additional detail) What other drugs will influence Viagra? Usually do not take Viagra with equivalent drugs which include tadalafil (Cialis) or vardenafil (Levitra). Do not take Viagra in case you are also using a nitrate drug for chest discomfort or heart complications, including 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 for instance amyl nitrate or nitrite ("poppers"). Ahead of taking Viagra, inform your doctor about all other drugs you use for erectile dysfunction, or should you be employing 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 which include nefazodone; an antibiotic such as clarithromycin (Biaxin), dalfopristin/quinupristin (Synercid), erythromycin (E.E.S., EryPed, Ery-Tab, Erythrocin, Pediazole) or telithromycin (Ketek); antifungal medication like 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 example atazanavir (Reyataz), delavirdine (Rescriptor), fosamprenavir (Lexiva), indinavir (Crixivan), nelfinavir (Viracept), saquinavir (Invirase), or ritonavir (Norvir, Kaletra). This list will not be comprehensive and there might be other drugs that will interact with Viagra. Tell your doctor about all of the prescription and over-the-counter drugs you use. This contains vitamins, minerals, herbal products, and drugs prescribed by other medical doctors. Don't start out using a new medication without having telling your physician. Viagra