Posts Tagged ‘Viagra’

Various Aspects of Viagra Described

Manufactured and marketed by Pfizer Inc., Viagra entered the market in 1998. Over the years, it has helped millions of men across the world to treat erectile dysfunction (ED) and made sure that their sex life is active and satisfying.

Viagra Ingredients

The active ingredient of Viagra is sildenafil citrate. There are 3 available doses of Viagra and the active ingredient in this medication is sildenafil citrate in doses of 25mg, 50mg or 100mg. A patient suffering from ED is typically prescribed a dosage of 50mg of this ED medication but those over 65 years of age are usually prescribed a dosage of 25mg.

The medication also contains certain inactive ingredients including microcrystalline cellulose, magnesium stearate, croscarmellose sodium and calcium hydrogen phosphate (anhydrous). The film coat of this prescription medication includes lactose, triacetin, hypromellose, indigo carmine aluminum lake (E132) and titanium dioxide (E171).

Chemical and physical description

The active ingredient of this blue pill is a citrate salt of sildenafil. This belongs to a family of medications known as phosphodiesterase type 5 inhibitors. It inhibits the action of cyclic guanosine monophosphate (cGMP) – specific phosphodiesterase type 5 (PDE5). The chemical designation of sildenafil citrate is 1-[[3-(6, 7-dihydro-1-methyl-7-oxo-3-propyl-1H-pyrazolo [4, 3-d] pyrimidin-5-yl)-4-ethoxyphenyl] sulfonyl]-4-methylpiperazine citrate. The molecular weight of sildenafil citrate is 666.7 and its solubility is 3.5mg/ml.

Viagra is a blue coloured, rounded, diamond shaped tablet. The colour and shape for all the doses remain the same. The manufacturer’s name “PFIZER” is marked on one side while the other side has the markings of the dosage either “VGR 25”, “VGR 50” or “VGR 100” depending on the dose.

Action mechanism

Viagra being a phosphodiesterase type 5 inhibitor, its action increases the levels of cyclic guanosine monophosphate (cGMP), which helps in the relaxation of blood vessels of the penis. This helps improve the blood flow, resulting in firmer and long lasting erections. The medication does not work without sexual stimulation. Also, it is a prescription drug solely meant for the treatment of ED, so it shouldn’t be used without a prescription and also by men who do not suffer from this condition.

Precautions of Viagra

Before you actually take Viagra, you must inform the doctor about the current intake of medications and also whether you are suffering from any health condition. The intake of this drug should be avoided if you are taking medications such as nitrates that are usually prescribed for providing relief from angina. Also, make sure that you aren’t allergic to any of the ingredients of this medication before you begin its dose. Those with a chronic heart or liver problem, amongst various other serious conditions are also asked to avoid the intake of this medication.

Optimizing use of the drug

While taking Viagra, make sure that you don’t exceed the dosage prescribed by the doctor. If you are thinking of increasing the dosage, consult your doctor first. Taking more than the prescribed dosage of the drug is not considered beneficial for your health and has not shown better results. The medication needs to be taken once a day, about an hour before sexual activity.

One of the significant facts about Viagra that you must be aware of, is that it isn’t a cure for male impotence or erectile dysfunction, but just helps alleviate its symptoms.

The article describes the various aspects of Viagra. Various aspects such as its ingredients, chemical and physical description, the way it works; precautions and optimizing the usage of the drug have been discussed at length.

euroClinix.net an online clinic provides consultation for various impotence treatments also avails to buy Viagra in the UK.