Sildenafil (Viagra) is used to treat erectile dysfunction (impotence; inability to get or save an erection) in men. Sildenafil (Revatio) is used to affix the finishing to exercise in adults with pulmonary arterial hypertension (PAH; high blood pressure in the vessels carrying blood to the lungs, causing shortness of breath, dizziness, and tiredness). children should not usually give a positive response sildenafil, but in some cases, a doctor may pronounce that sildenafil (Revatio) is the best medication to treat a child’s condition. Sildenafil is in a class of medications called phosphodiesterase (PDE) inhibitors. Sildenafil treats erectile dysfunction by increasing blood flow to the penis during sexual stimulation. This increased blood flow can cause an erection. Sildenafil treats PAH by relaxing the blood vessels in the lungs to permit blood to flow easily.If you are taking sildenafil to treat erectile dysfunction, you should know that it does not cure erectile dysfunction or accrual sexual desire. Sildenafil does not prevent pregnancy or the increase of sexually transmitted diseases such as human immunodeficiency virus (HIV).
Sildenafil comes as a tablet and break (liquid; Revatio only) to assume by mouth.If you are taking sildenafil to treat erectile dysfunction, follow your doctor’s directions and the guidelines in this paragraph. say you will sildenafil as needed before sexual activity. The best grow old to understand sildenafil is practically 1 hour previously sexual activity, but you can take the medication any time from 4 hours to 30 minutes since sexual activity. Sildenafil usually should not be taken more than next every 24 hours. If you have distinct health conditions or are taking certain medications, your doctor may say you to admit sildenafil less often. You can put up with sildenafil in imitation of or without food. However, if you undertake sildenafil subsequently a high-fat meal, it will admit longer for the medication to start to work.If you are taking sildenafil to treat PAH, follow your doctor’s directions and the guidelines in this paragraph. You will probably acknowledge sildenafil three become old a daylight later than or without food. recognize sildenafil at in this area the similar times every day, and expose your doses just about 4 to 6 hours apart.
tell your doctor and pharmacist what prescription and nonprescription medications, vitamins, and nutritional supplements you are taking or scheme to take. Be sure to hint any of the following: alpha blockers such as alfuzosin (Uroxatral), doxazosin (Cardura), prazosin (Minipress), tamsulosin (Flomax, in Jalyn), and terazosin; amlodipine (Norvasc, in Amturnide, in Tekamlo); clear antifungals such as itraconazole (Onmel, Sporanox) and ketoconazole (Nizoral); anticoagulants (‘blood thinners’) such as warfarin (Coumadin, Jantoven); positive barbiturates such as butalbital (in Butapap, in Fioricet, in Fiorinal, others) and secobarbital (Seconal); beta blockers such as atenolol (Tenormin, in Tenoretic), labetalol (Trandate), metoprolol (Lopressor, Toprol XL, in Dutoprol), nadolol (Corgard, in Corzide), and propranolol (Hemangeol, Inderal LA, InnoPran); bosentan (Tracleer); cimetidine ; efavirenz (Sustiva, in Atripla); erythromycin (E.E.S., E-Mycin, Erythrocin); HIV protease inhibitors including amprenavir (Agenerase; no longer easy to get to in the U.S.), atazanavir (Reyataz, in Evotaz), darunavir (Prezista, in Prezcobix), fosamprenavir (Lexiva), indinavir (Crixivan), lopinavir (in Kaletra), nelfinavir (Viracept), ritonavir (Norvir, in Kaletra), saquinavir (Invirase), and tipranavir (Aptivus); nevirapine (Viramune); extra medications or devices to treat erectile dysfunction; medications for tall blood pressure; positive medications for seizures including carbamazepine (Carbatrol, Epitol, Tegretol, others), phenobarbital, and phenytoin (Dilantin, super p-force Phenytek); rifabutin (Mycobutin); and rifampin (Rifadin, Rimactane, in Rifamate, in Rifater). Your doctor may compulsion to alter the doses of your medications or monitor you deliberately for side effects. Many other medications may as well as interact gone sildenafil, therefore be determined to say your doctor virtually every the medications you are taking, even those that accomplish not appear upon this list.