Viagra
Pfizer Viagra is the original Viagra
Viagra was invented by pharmaceutical company Pfizer
The active ingredient in Viagra, sildenafil, was originally conceived to treat angina pectoris (heart attack). Developer and manufacturer Pfizer discovered during the testing phase in the 1990s that the drug also had an erection-inducing effect, so it filed for a patent under the name Viagra. Since its launch in 1998, Viagra has become very popular among men who suffer from Erectile Dysfunction (ED). Viagra guarantees an erection in response to sexual stimulation. That is why millions of men buy Pfizer’s Viagra. It is estimated that approximately 18% of men above 18 years suffer from ED or impotence at some stage in their lives. Viagra allows them to once again enjoy sex.
What does Viagra do?
Pfizer discovered that sildenafil stops the breakdown of cyclic GMP, a chemical messenger that is released upon sexual arousal which causes blood vessels to widen. Viagra ensures the blood vessels are kept dilated for longer, improving blood flow to the corpus cavernosum in the penis. This does not only produce but also helps to maintain an erection.
Viagra takes effect within about 30 minutes and lasts for about four hours. The peak level is reached one hour after the medication is taken.
When not to use Viagra
Pfizer warns against the use of Viagra with any form of nitrate or nitrite medications, such as medications for angina or heart failure, or recreational drugs known as poppers. This combination can intensify the effect of Viagra and cause serious, even fatal, health risks. Taking this risk is never worth it!
Pfizer says Viagra should also not be used in:
People who have recently had a brain haemorrhage, stroke or heart attack;
People with serious heart problems;
People with serious liver problems;
People with a rare eye condition called retinitis pigmentosa;
People who are advised not to be sexually active by their doctor.
Viagra should be used with caution in patients with:
Haemophilia;
Leukaemia;
Sickle cell anaemia;
A stomach ulcer.
Before buying Viagra, make sure to read the package leaflet to learn about possible side effects and contraindications. Click here to read the package leaflet for Pfizer Viagra.
Be careful with Viagra that is not manufactured by Pfizer
Pfizer’s huge success stimulated other pharmaceutical companies to produce and distribute their own variants of Viagra over the years. Especially online, counterfeit (fake) Viagra was launched on the market illegally – the patent was still valid, so no company apart from Pfizer had the right to produce and market the Viagra. Now that Pfizer’s patent has expired, manufacturers are allowed to copy branded Viagra. However, many manufacturers are based in China and India, and produce Viagra clones in dodgy factories where health regulations are not up to the standards we are used to in the West. As a result, the chance of contamination is high.
First of all, the composition of fake Viagra may deviate strongly from the original by Pfizer, with serious consequences for the effectiveness and nature and extent of side effects. A study conducted by the Dutch Consumers’ Association in cooperation with the Dutch Ministry of Health and the National Institute of Public Health and the Environment (RIVM) has revealed that these counterfeit clones can even contain harmful ingredients such as printer ink and cocaine.
So beware if you are tempted to buy cheap Viagra instead of the original product by Pfizer. You may be seriously damaging your health.



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