However, you should know that, like any other medicines, Viagra has its own contraindications.
You should immediately stop taking the drug: in case of allergic reactions such as rash, itching, shortness of breath, swelling of the face, anaphylactic shock; when taking other medicines, which contain nitrates or are a nitric oxide donor (For example: Nitroglycerin).
Also, tablets should not be used in the presence of the following diseases: blood cancer (leukemia); stomach ulcer; sickle cell anemia; deformation and other diseases of the penis; bone marrow cancer (multiple myeloma); hemophilia; duodenal ulcer.

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  • Disorder in relationships due to impotenceTherefore, if you decide to undergo treatment for impotence with Viagra pills, it is imperative to consult a specialist to prevent unwanted effects.
  • Only a qualified andrologist will be able to establish the required dosage, which is most suitable for the individual structure of the body. For the bulk of men, it is 50 mg. However, depending on the tolerability of the drug, the dose may increase or decrease.
  • The action of Viagra can weaken and plentiful food intake, and alcohol consumption can lead to increased side effects and temporary impairment of erectile function.

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The tablet should be taken 30 minutes - 1 hour before the start of intercourse. The drug is swallowed whole and, if necessary, washed down with a little water. Recall that an erection occurs only in the presence of sexual stimulation or strong arousal.