Sildenafil (Viagra) is used to treat erectile dysfunction (impotence; inability to acquire or keep an erection) in men. Sildenafil (Revatio) is used to add up the achievement to exercise in adults bearing in mind pulmonary arterial hypertension (PAH; tall blood pressure in the vessels carrying blood to the lungs, causing terseness of breath, dizziness, and tiredness). children should not usually put up with sildenafil, but in some cases, a doctor may believe to be 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 allow blood to flow easily.If you are taking sildenafil to treat erectile dysfunction, you should know that it does not cure erectile dysfunction or buildup sexual desire. Sildenafil does not prevent pregnancy or the move forward of sexually transmitted diseases such as human immunodeficiency virus (HIV).
Sildenafil comes as a tablet and suspension (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. put up with sildenafil as needed before sexual activity. The best period to receive sildenafil is more or less 1 hour since sexual activity, but you can admit the medication any times from 4 hours to 30 minutes since sexual activity. Sildenafil usually should not be taken more than in the same way as all 24 hours. If you have sure health conditions or are taking positive medications, your doctor may tell you to resign yourself to sildenafil less often. You can assume sildenafil following or without food. However, if you bow to sildenafil following a high-fat meal, it will tolerate longer for the medication to begin to work.If you are taking sildenafil to treat PAH, follow your doctor’s directions and the guidelines in this paragraph. You will probably take sildenafil three times a morning once or without food. say yes sildenafil at vis–vis the similar grow old all day, and expose your doses not quite 4 to 6 hours apart.
tell your doctor and pharmacist what prescription and nonprescription medications, vitamins, and nutritional supplements you are taking or plot to take. Be definite 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); certain 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 penegra 100 mg 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 approachable 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; definite medications for seizures including carbamazepine (Carbatrol, Epitol, Tegretol, others), phenobarbital, and phenytoin (Dilantin, Phenytek); rifabutin (Mycobutin); and rifampin (Rifadin, Rimactane, in Rifamate, in Rifater). Your doctor may infatuation to amend the doses of your medications or monitor you on purpose for side effects. Many additional medications may moreover interact similar to sildenafil, consequently be determined to say your doctor virtually every the medications you are taking, even those that complete not appear on this list.