Generic Levitra

Generic Levitra is a phosphodiesterase inhibitor used to treat sexual function problems such as impotence or erectile dysfunction. In combination with sexual stimulation, Levitra works by helping the blood flow into the penis to achieve and maintain an erection. Levitra is not intended for use in women or children. Levitra will not protect against sexually transmitted diseases including hiv infection.
      Do not take Levitra if you are also taking or using any form of nitroglycerin, other nitrates such as isosorbide, nitroprusside, or recreational drugs called "poppers" containing amyl or butyl nitrate because very serious interactions may occur. If one is not sure whether a certain medicine is a nitrate, contact the doctor or pharmacist before taking Levitra. Do not take Levitra if you are taking an alpha-blocker medicine such as doxazosin, prazosin, or terazosin. If you are taking any of these medicines, contact your doctor or pharmacist before taking vardenafil. Additional monitoring of your dose or condition may be needed if you are taking other medicine for impotence; certain antifungal medicines such as itraconazole or ketoconazole; rifamycins such as rifampin; cimetidine; erythromycin; medicine for high blood pressure; medicine for abnormal heartbeats such as quinidine, procainamide, amiodarone, or sotalol.

         Cialis is used to treat erectile dysfunction (impotence) in men. Adcirca, another brand of tadalafil, is used to treat pulmonary arterial hypertension and improve exercise capacity in men and women. Cialis (tadalafil) relaxes muscles and increases blood flow to particular areas of the body.
        Cialis can decrease blood flow to the optic nerve of the eye, causing sudden vision loss. This has occurred in a small number of people taking Cialis, most of whom also had heart disease, diabetes, high blood pressure, high cholesterol, or certain pre-existing eye problems, and in those who smoke or are over 50 years old. It is not clear whether Cialis is the actual cause of vision loss.
         If you have any of these other conditions, you may need a Cialis dose adjustment or special tests:

• heart disease or heart rhythm problems;
• a recent heart attack .
• a recent history  of a stroke, or congestive heart failure;
• angina (chest pain), high or low blood pressure;
• liver disease;
• kidney disease (or if you are on dialysis);
• a blood cell disorder such as sickle cell anemia.
• a bleeding disorder such as hemophilia;
• a stomach ulcer;
• retinitis pigmentosa.
• a physical deformity of the penis (such as Peyronie's disease); or
• if you have been told you should not have sexual intercourse for health reasons.
  
  

Viagra

Viagra  relaxes muscles and increases blood flow to particular areas of the body.

Sildenafil under the name Viagra is used to treat erectile dysfunction (impotence) in men. Another brand of sildenafil is Revatio, which is used to treat pulmonary arterial hypertension and improve exercise capacity in men and women. Do not take Viagra while also taking Revatio, unless your doctor tells you to.

Viagra may also be used for other purposes not listed in this medication guide.

Do not take Viagra if you are also using a nitrate drug for chest pain or heart problems. 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 such as amyl nitrate or nitrite ("poppers"). Taking Viagra with a nitrate medicine can cause a sudden and serious decrease in blood pressure. During sexual activity, if you become dizzy or nauseated, or have pain, numbness, or tingling in your chest, arms, neck, or jaw, stop and call your doctor right away. You could be having a serious side effect of Viagra.

GP

Tadalafil is a PDE5 inhibitor, currently marketed in pill form for treating erectile dysfunction (ED) under the name Cialis; and under the name Adcirca for the treatment of pulmonary arterial hypertension. It initially was developed by the biotechnology company ICOS, and then again developed and marketed world-wide by Lilly . Cialis tablets, in 5 mg, 10 mg, and 20 mg doses, are yellow, film-coated, and almond-shaped. The approved dose for pulmonary arterial hypertension is 40 mg (two 20-mg tablets) once daily.