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About Viagra

Sildenafil citrate, sold as Viagra, Revatio and under various other trade names, is a drug used to treat erectile dysfunction and pulmonary arterial hypertension (PAH). It was originally developed by British scientists and then brought to market by the US-based pharmaceutical company Pfizer. It acts by inhibiting cGMP-specific phosphodiesterase type 5, an enzyme that delays degradation of cGMP, which regulates blood flow in the penis. Since becoming available in 1998, sildenafil has been the prime treatment for erectile dysfunction; its primary competitors on the market are tadalafil (Cialis) and vardenafil (Levitra).

The primary indication of sildenafil is treatment of erectile dysfunction (inability to sustain a satisfactory erection to complete intercourse). Its use is now standard treatment for erectile dysfunction in all settings, including diabetes. People on antidepressants may experience sexual dysfunction, either as a result of their illness or as a result of their treatment. A 2003 study showed that sildenafil improved sexual function in men in this situation. Following up to earlier reports from 1999, the same researchers found that sildenafil was able to improve sexual function in female patients on antidepressants as well.

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VIAGRA

VIAGRA is prescribed to treat erectile dysfunction (ED).
IMPORTANT SAFETY INFORMATION BELOW.

Do not take VIAGRA if you take nitrates, often prescribed for chest pain, as this may cause a sudden, unsafe drop in blood pressure.

Discuss your general health status with your doctor to ensure that you are healthy enough to engage in sexual activity. If you experience chest pain, nausea, or any other discomforts during sex, seek immediate medical help.

In the rare event of an erection lasting more than 4 hours, seek immediate medical help to avoid long-term injury.

If you are older than age 65, or have serious liver or kidney problems, your doctor may start you at the lowest dose (25 mg) of VIAGRA. If you are taking protease inhibitors, such as for the treatment of HIV, your doctor may recommend a 25 mg dose and may limit you to a maximum single dose of 25 mg of VIAGRA in a 48-hour period.

In rare instances, men taking PDE5 inhibitors (oral erectile dysfunction medicines, including VIAGRA) reported a sudden decrease or loss of vision. It is not possible to determine whether these events are related directly to these medicines or to other factors. If you experience sudden decrease or loss of vision, stop taking PDE5 inhibitors, including VIAGRA, and call a doctor right away.

Sudden decrease or loss of hearing has been rarely reported in people taking PDE5 inhibitors, including VIAGRA. It is not possible to determine whether these events are related directly to the PDE5 inhibitors or to other factors. If you experience sudden decrease or loss of hearing, stop taking VIAGRA and contact a doctor right away.

If you have prostate problems or high blood pressure for which you take medicines called alpha blockers, your doctor may start you on a lower dose of VIAGRA.

VIAGRA should not be used with other treatments that cause erections. VIAGRA should not be used with REVATIO as REVATIO contains sildenafil, the same medicine found in VIAGRA.

VIAGRA does not protect against sexually transmitted diseases, including HIV.

The most common side effects of VIAGRA are headache, facial flushing, and upset stomach. Less commonly, bluish vision, blurred vision, or sensitivity to light may briefly occur.

Please see full prescribing information for VIAGRA (25 mg, 50 mg, 100 mg) tablets.

You are encouraged to report negative side effects of prescription drugs to the FDA. Visit www.fda.gov/medwatch, or call 1-800-FDA-1088. By clicking on this link you will be leaving VIAGRA.com. This website is neither owned nor controlled by Pfizer. Pfizer is not responsible for the content or services of this site.

Viagra consumer information

Viagra is definitely the most popular and recognizable erectile dysfunction medication in the world. It has literally become the synonym to the health issue itself and it's nearly impossible to talk about male impotence without mentioning Viagra. It was the very first drug approved for treating ED by the FDA and remains to be the leading seller in this niche, which today includes more drugs from different manufacturers.

Viagra is a prescription medication and you'll have to consult with your doctor regarding its use. Do not try to take Viagra on your own because getting the desired effects depends on the exact dosage you take and only a professional doctor can indicate you with the optimal dosage according to your health condition and all the drugs that you're taking. So it's in your interest to tell your doctor in detail about any health problems that you have and all the drugs both prescription and non-prescription that you take on a regular basis in order to receive a prescription for the most effective dosage.

Viagra works by stimulating the blood flow into the penis when the person becomes sexually excited. Viagra won't work if you aren't sexually aroused, so if the erectile problems are caused by low libido Viagra is likely to be ineffective because it doesn't affect sexual drive. Viagra only improves the quality of erections making them more solid and durable and allowing the user to enjoy penetrative sex just as he would normally do without ED. It doesn't cause erections to automatically form after you've taken the pill, it's not an aphrodisiac.

Make sure that you take Viagra the right way in order to assure its effectiveness. The drug should be taken only when needed. Take the pill in about 15-30 minutes before starting sexual activity for the drug to take effect. It can be taken with and without food, although it's recommended to avoid heavy fatty meals otherwise the onset will take a bit longer. Do not take Viagra with alcohol because it will increase the risk of experiencing negative side effects of the drug.

Viagra is a wonderful and effective drug that has helped millions of men all over the world in restoring their sexual activity even after years of complete impotence. Yet, Viagra isn't a magic potion and just like any other drug it may deliver weaker effects in some users. That's why consulting with your doctor while using Viagra is a must if you really want this drug to help you restore your sexual abilities.

Viagra (sildenafil) is used for the treatment of erectile dysfunction. It is a phosphodiesterase-5 (PDE5) inhibitor. Common side effects of Viagra include facial flushing, headaches, stomach pain, nasal congestion, nausea, diarrhea, and an inability to differentiate between the colors green and blue. Loss of hearing, ringing in the ears and dizziness may occur. The recommended dose of Viagra is 25-100 mg taken 30 minutes to 4 hours before sexual activity. Viagra increases the effects of blood pressure lowering medications. It also increases the blood pressure lowering effects of nitrates (for example, isosorbide dinitrate) that are used primarily for treating angina. Patients taking nitrates should not receive Viagra. Viagra should not be combined with Revatio or other PDE5 inhibitors (for example, Levitra [vardenafil], Cialis [tadalafil]). Tagamet (cimetidine), erythromycin, ketoconazole, Sporanox (itraconazole), and Posicor (mibefradil) can cause marked increases in the amount of Viagra in the body. Patients taking these medications should be observed carefully if Viagra is used. Our Viagra Drug Center provides a comprehensive view of available drug information as well as related drugs, user reviews, supplements, and diseases and conditions.