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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.

$69.9
Erection packs 2
Erection packs 2
Viagra 20 pills x 100 mg,
Cialis 20 pills x 20 mg,
Levitra 20 pills x 20 mg.
Erection packs 2 1pack
PackagePer PillPriceSavingsBonusOrder
1pack × 60 pills$2.66$159.9+ LevitraBuy now
  • Product description
  • Safety information
  • Side effects

  • Product description:

    Viagra is indicated for the treatment of erectile dysfunction in men... read more

    Cialis is indicated for the treatment of erectile dysfunction. Cialis works faster than other ED drugs and lasts for an extended period of time... read more

    Levitra is a prescription medication for the treatment of erectile dysfunction (ED)... read more

  • Safety information:

    Viagra

    Do NOT use Viagra if:

    you are allergic to any ingredient in Viagra you have been advised by your doctor to avoid sexual activity because of heart problemsyou are taking nitrates (eg, isosorbide, nitroglycerin) in any form (eg, tablet, capsule, patch, ointment), or nitroprusside... read more

    Cialis

    Do NOT use Cialis if:

    you are allergic to any ingredient in Cialisyou have severe kidney problems and will be taking Cialis dailyyou have severe liver problems or certain hereditary degenerative eye problems (eg, retinitis pigmentosa)... read more

    Levitra 

    Do NOT use Levitra if:

    you are allergic to any ingredient in Levitrayou have been advised by your doctor to avoid sexual activity because of heart problemsyou have certain heart problems (eg, severe heart failure, angina), low or high blood pressure, severe liver problems or severe kidney problems that require dialysis... read more

  • Side effects:

    Viagra

    All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most common side effects persist or become bothersome:
    Diarrhea; dizziness; flushing; headache; heartburn; stuffy nose; upset stomach... read more

    Cialis

    All medicines may cause side effects, but many people have no, or minor, side effects.Check with your doctor if any of these most common side effects persist or become bothersome:
    Dizziness; flushing; headache; heartburn; mild back or muscle pain; stomach upset; stuffy or runny nose... read more

    Levitra 

    All medicines may cause side effects, but many people have no, or minor, side effects.Check with your doctor if any of these most common side effects persist or become bothersome:
    Dizziness; flushing; headache; heartburn; nausea; stuffy or runny nose; upset stomach... read more