Viagra® (Brand)

Viagra (Sildenafil Citrate) is the most famous ED medication in the entire world. For over ten years, it has been helping men fight impotence and perform better in bed. The medication increases blood flow to penis muscles and thus produces a harder and longer lasting erection. Activated only when aroused.

Take Viagra as needed, preferably 30 to 60 minutes before intercourse. However, it will remain active for up to four hours. Do not take more than one dose of Viagra within a 24-hour period.

The medication works only when aroused and will not cause any embarrassing surprises. Follow the instructions of your doctor.

If you experience any symptoms associated with allergies such as difficulty breathing, hives, swollen tongue etc., stop using the medication and seek urgent medical help. If you feel dizziness, nausea or a tingling sensation in the upper body during sex, contact your doctor immediately, as it may signify a serious side effect of Viagra.

Contact your medical specialist immediately if you experience any of the following: vision or hearing problems; pain in the chest, arm or shoulder; nausea and sweating; uneven heartbeat; shortness of breath; swollen feet or hands; loss of consciousness; more than 4-hour, painful erection.

Common side effects of using Viagra include red or warmer face, neck and chest; mild memory loss; headaches; stomach problems; back pain and stuffy nose.

Note that this list does not include all possible side effects. Other side effects might occur depending on individual health conditions.

Do not combine Viagra with alcohol as it may increase the risk of side effects. Avoid taking other ED medications such as alprostadil (Caverject, Muse, Edex) or yohimbine (Yocon, Yodoxin, etc.) without prior medical consult.

Viagra may cause sudden vision loss due to a decreased blood flow to the eye optic nerve.

Avoid combining Viagra with similar treatments, e.g. avanafil (Stendra), tadalafil (Cialis) and vardenafil (Levitra). Notify your doctor of all other medications you are using, especially: bosentan (Tracleer); cimetidine (Tagamet, Tagamet HB); conivaptan (Vaprisol); imatinib (Gleevec); isoniazid (for treating tuberculosis); antidepressants such as nefazodone; antibiotics such as clarithromycin (Biaxin), erythromycin (E.E.S., EryPed, Ery-Tab, Erythrocin, Pediazole), rifampin (Rifater, Rifadin, Rifamate), or telithromycin (Ketek); antifungal medications such as itraconazole (Sporanox), ketoconazole (Nizoral), or voriconazole (Vfend); high blood pressure or prostate disorder drugs, such as alfuzosin (Uroxatral), doxazosin (Cardura), prazosin (Minipress), terazosin (Hytrin), silodosin (Rapaflo), tamsulosin (Flomax, Jalyn); heart or blood pressure medications such as amlodipine (Norvasc, Caduet, Exforge, Lotrel, Tekamlo, Tribenzor, Twynsta, Amturnide), diltiazem (Cardizem, Cartia, Dilacor, Diltia, Diltzac, Taztia, Tiazac), nicardipine (Cardene), quinidine (Quin-G), or verapamil (Calan, Covera, Isoptin, Verelan); hepatitis C medications boceprevir (Victrelis) or telaprevir (Incivek); or HIV/AIDS medicine such as atazanavir (Reyataz), darunavir (Prezista), fosamprenavir (Lexiva), indinavir (Crixivan), nelfinavir (Viracept), ritonavir (Kaletra, Norvir), saquinavir (Fortovase), or tipranavir (Aptivus).

Other medications can interact with Viagra as well.

As Viagra is taken only as needed, missed dose regulations do not apply.

Viagra should be stored between 59°F and 86°F (15°C and 30°C) away from light and moisture, out of reach of children and pets.