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Viagra is a phosphodiesterase inhibitor. It functions by helping to improve blood flow into the penis during sexual stimulation. This aids you to achieve and sustain an erection.

Treating erectile dysfunction (ED). It might also be employed for other conditions as determined by your doctor.

Viagra is a phosphodiesterase inhibitor. It works by assisting to improve blood flow into the penis in the course of sexual stimulation. This assists you to attain and sustain an erection.

Do NOT use Viagra if:


 * you are allergic to any ingredient in Viagra


 * you have been advised by your doctor to stay away from sexual activity due to the fact of heart issues


 * you are taking nitrates (eg, isosorbide, nitroglycerin) in any type (eg, tablet, capsule, patch, ointment) or nitroprusside


 * you use certain recreational drugs named "poppers" (eg, amyl nitrate, butyl nitrate)

Speak to your medical doctor or wellness care provider proper away if any of these apply to you.

Prior to making use of Viagra :

Some medical situations may interact with Viagra. Tell your physician or pharmacist if you have any medical situations, specially if any of the following apply to you:


 * if you are taking any prescription or nonprescription medicine, herbal preparation, or dietary supplement


 * if you have allergies to medicines, foods, or other substances


 * if you have a deformed penis (eg, Peyronie illness, cavernosal fibrosis), blood troubles (eg, sickle cell anemia, leukemia, a number of myeloma), or any other situation that could boost the risk of a prolonged erection (eg, priapism)


 * if you have a history of particular eye troubles (eg, retinitis pigmentosa, sudden vision loss, optic neuropathy, macular degeneration)


 * if you have a history of liver or kidney issues, high or low blood pressure, ulcers, bleeding troubles, heart difficulties (eg, heart failure, irregular heartbeat, aortic stenosis, angina), or blood vessel problems


 * if you have a background of heart attack, stroke, or life-threatening irregular heartbeat, especially within the previous 6 months

Some MEDICINES May INTERACT with Viagra. Tell your health care provider if you are taking any other medicines, specifically any of the following:


 * Alpha-blockers (eg, doxazosin), amlodipine, medicines for high blood pressure, nitrates (eg, isosorbide, nitroglycerin), or nitroprusside since severe low blood pressure with dizziness, lightheadedness, and fainting might happen


 * Azole antifungals (eg, itraconazole), cimetidine, H2 agonists (eg, famotidine), HIV protease inhibitors (eg, ritonavir), macrolide antibiotics (eg, erythromycin), or telithromycin due to the fact they might enhance the threat of Viagra 's side effects


 * Bosentan or rifampin due to the fact they may possibly lower Viagra 's effectiveness

This may not be a complete list of all interactions that may take place. Ask your health care provider if Viagra may possibly interact with other medicines that you take. Check with your well being care provider before you begin, quit, or change the dose of any medicine. how can a man last longer in bed