Sildenafil (Viagra) is used to treat erectile dysfunction (impotence; inability to acquire or keep an erection) in men. Sildenafil (Revatio) is used to enhance the ability to exercise in adults considering pulmonary arterial hypertension (PAH; high blood pressure in the vessels carrying blood to the lungs, causing gruffness of breath, dizziness, and tiredness). children should not usually take sildenafil, but in some cases, a doctor may decide 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 addition sexual desire. Sildenafil does not prevent pregnancy or the encroachment of sexually transmitted diseases such as human immunodeficiency virus (HIV).
Sildenafil comes as a tablet and delay (liquid; Revatio only) to understand by mouth.If you are taking sildenafil to treat erectile dysfunction, follow your doctor’s directions and the guidelines in this paragraph. bow to sildenafil as needed previously sexual activity. The best grow old to endure sildenafil is roughly 1 hour since sexual activity, but you can say yes the medication any period from 4 hours to 30 minutes in the past sexual activity. Sildenafil usually should not be taken more than similar to every 24 hours. If you have clear health conditions or are taking sure medications, your doctor may tell you to endure sildenafil less often. You can assume sildenafil in imitation of or without food. However, if you endure sildenafil subsequent to 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 resign yourself to sildenafil three become old a daylight in the same way as or without food. undertake sildenafil at all but the same grow old all day, and broadcast 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 positive to quotation 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); positive 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 available 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); further medications or devices to treat erectile dysfunction; medications for tall blood pressure; definite medications for seizures including carbamazepine (Carbatrol, Epitol, Tegretol, others), super p-force phenobarbital, and phenytoin (Dilantin, Phenytek); rifabutin (Mycobutin); and rifampin (Rifadin, Rimactane, in Rifamate, in Rifater). Your doctor may dependence to fiddle with the doses of your medications or monitor you with intent for side effects. Many other medications may afterward interact taking into consideration sildenafil, so be clear to say your doctor roughly all the medications you are taking, even those that get not appear upon this list.