Viagra dosage and contraindication

Viagra, active ingredient, sildenafil, is a blue, diamond shaped tablet, marketed by Pfizer. It’s a prescription tablet used for the treatment of erectile dysfunction, and is only prescribed to men who qualify for this medication with respect to their health and other requirements.

Dosage of Viagra

Viagra is available in dosages of 25mg, 50mg, and 100mg, mean each Viagra tablet contains 25 mg, 50mg or 100mg of active ingredient sildenafil. Typically, a 50mg dosage is commonly prescribed for patients suffering from erectile dysfunction and those who don’t suffer from any other serious underlying medical condition. The lowest dosage, that is 25mg, is prescribed to those patients who are either 65 years or older and/or who also suffer from certain other serious health risks.

The dosage of the medication can be increased if the lower dosage is not having the desired effect. It needs to be taken an hour z and its effect lasts in your body for around 4 hours. It’s also important to remember that you need to keep a gap of 24 hours between the two Viagra dosages.

Contraindication with sildenafil

A prescription Viagra pill has a tendency to interact with your medicinal intake or with any underlying health risks that you might be suffering from. So, you need to be very careful about its intake and make sure that your doctor knows about the medications you are on (both prescription and over-the-counter). Sildenafil can show an adverse reaction if you are taking nitrates, usually prescribed for the treatment chest pain and angina.

For some, the intake of Viagra sildenafil is to be avoided because they are not supposed to have sexual intercourse. Because in doing so, they put themselves at risk of suffering from cardiovascular disorders. Other people who might have to avoid taking this medication are those suffering from a decreased liver function, problems in renal function, have suffered from a recent heart attack or stroke, low blood pressure and also those suffering genetic retinal disorders

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