Viagra treats impotence (ED)

Treating erectile dysfunction (ED). It may also be used in spite of other conditions as determinate nigh your doctor.

Viagra is a phosphodiesterase inhibitor. It works stamazide without prescription past portion to augmentation blood teem into the penis during sex stimulation. This helps you to achieve and maintain an erection.

Do NOT use Viagra if:

* you are allergic to any ingredient in Viagra
* you have been advised via your doctor to avoid reproductive bustle because of resolution problems
* you are prepossessing nitrates (eg, isosorbide, nitroglycerin) in any form (eg, stone, capsule, area, permission) or nitroprusside
* you manoeuvre certain recreational drugs called "poppers" (eg, amyl nitrate, butyl nitrate)

Connection your doctor or health care provider honourableness away if any of these use to you.

Before using Viagra :

Some medical conditions may interact with Viagra . Discriminate your doctor or pharmacist if you arrange any medical conditions, unusually if any of the following pay attention to you:

* if you are entrancing any medicament or nonprescription medicine, herbal preparation, or dietary codicil
* if you have allergies to medicines, foods, or other substances
* if you have a disfigured penis (eg, Peyronie disease, cavernosal fibrosis), blood problems (eg, sickle apartment anemia, leukemia, multiple myeloma), or any other ready that may increase the chance of a prolonged erection (eg, priapism)
* if you have a past of stable judgement problems (eg, retinitis pigmentosa, sudden vision depletion, optic neuropathy, macular degeneration)
* if you be undergoing a history of liver or kidney problems, enormous or shaky blood exigencies, ulcers, bleeding problems, spunk problems (eg, generosity non-starter, unsymmetrical heartbeat, aortic stenosis, angina), or blood ship problems
* if you secure a record of heart raid, throb, or life-threatening unsystematized heartbeat, especially within the defunct 6 months

Some MEDICINES MAY INTERACT with Viagra . Indicate your form attend to provider if you are charming any other medicines, especially any of the following:

* Alpha-blockers (eg, doxazosin), amlodipine, medicines for the treatment of turbulent blood exigency, nitrates (eg, isosorbide, nitroglycerin), or nitroprusside because merciless common blood weight with dizziness, lightheadedness, and fainting may appear
* Azole antifungals (eg, itraconazole), cimetidine, H2 agonists (eg, famotidine), HIV protease inhibitors (eg, ritonavir), macrolide antibiotics (eg, erythromycin), or telithromycin because they may increase the imperil of Viagra 's side effects
* Bosentan or rifampin because they may shrink Viagra 's effectiveness

This may not be a complete catalogue of all interactions that may occur. Ask your fitness pains provider if Viagra may interact with other medicines that you take. Validate with your condition care provider in the future you start, a close, or metamorphosis the dose of any medicine.