Sildenafil (Viagra) is used to treat erectile dysfunction (impotence; inability to get or keep an erection) in men. Sildenafil (Revatio) is used to tally up the carrying out to exercise in adults similar to pulmonary arterial hypertension (PAH; high blood pressure in the vessels carrying blood to the lungs, causing rudeness of breath, dizziness, and tiredness). children should not usually endure sildenafil, but in some cases, a doctor may consider 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 increase sexual desire. Sildenafil does not prevent pregnancy or the proceed of sexually transmitted diseases such as human immunodeficiency virus (HIV).
Sildenafil comes as a tablet and suspension (liquid; Revatio only) to undertake by mouth.If you are taking sildenafil to treat erectile dysfunction, follow your doctor’s directions and the guidelines in this paragraph. give a positive response sildenafil as needed before sexual activity. The best grow old to acknowledge sildenafil is about 1 hour back sexual activity, but you can put up with the medication any time from 4 hours to 30 minutes in the past sexual activity. Sildenafil usually should not be taken more than bearing in mind all 24 hours. If you have clear health conditions or are taking determined medications, sildalist your doctor may say you to tolerate sildenafil less often. You can bow to sildenafil similar to or without food. However, if you recognize sildenafil gone a high-fat meal, it will undertake 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 say yes sildenafil three grow old a morning in the manner of or without food. take sildenafil at with reference to the similar epoch all day, and reveal your doses virtually 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 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); determined antifungals such as itraconazole (Onmel, Sporanox) and ketoconazole (Nizoral); anticoagulants (‘blood thinners’) such as warfarin (Coumadin, Jantoven); definite 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 straightforward 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); other 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 obsession to change the doses of your medications or monitor you on purpose for side effects. Many additional medications may moreover interact afterward sildenafil, so be positive to tell your doctor very nearly every the medications you are taking, even those that reach not appear upon this list.