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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.

Active Ingredient: Sildenafil
Fildena is used for treating erectile dysfunction. It is also used for treating pulmonary arterial hypertension (high pressure inside lungs).
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Fildena 100mg
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Fildena 50mg
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    Fildena is widely used to treat male sexual disorder, erectile dysfunction or impotence. It supplies sufficient blood to the penis, helping it to get erect.

    Fildena works by blocking the enzyme phosphodiesterase in the body. In combination with sexual stimulation, sildenafil functions by helping the blood flow into the penis to achieve and maintain erection, during physical intercourse.


    Fildena is meant for oral use. It should be taken 20 minutes prior physical intercourse. It does not provide any protection against transmission of HIV, syphilis, gonorrhoea, etc.


    Based on the age, drug tolerance and reaction to the drug, the dose is decided. Therefore, the patient should always consult a doctor before the usage.

    Missed dose:

    Fildena is taken only “when needed”.


    Fildena should be stored at a room temperature that ranges from 15-30 degrees. It should be kept away from reach of children and pets, preferably in a closed and locked cupboard. Protect the medicine from light, heat and moisture so that it retains its original effects.

    Always check the expiry date of the medicine before using it. In case of expired medicine, it should be discarded properly with the help of local waste disposal company.


  • Before using Fildena, the patients should check the ingredients present in it. In case they are allergic to any ingredient, should let their doctor know about that.

    Please consult a doctor:

    • in case the patient has medical history of any disease
    • in case the patient is using any medicine that has nitrate or any nitrogen containing ingredient in it, then Fildena should be avoided. 

    Intake of alcohol should be avoided by the patient when using Fildena.

    The patient should avoid grape fruit and grape juice when taking Fildena.

    Drug Interactions:

    Fildena might react with some other medicine. Therefore, the patient should always share the name of the medicine with a doctor. In general, some medicines that might interact with Fildena are:

    St. John’s wort

    This is not the complete list of drug interactions. Some other medicines might also react with Fildena.

  • Possible side effects that you might get after using Fildena:

    Blurred vision
    Ringing in the ear
    Chest pain
    Loss of hearing
    Painful erection
    Erection lasts for more than 4 hours
    Redness of the face
    Allergic reactions
    Irregular heartbeat

    This is not the complete list of side effects. Please consult a doctor in case you experience any problem.