Viagra is a brand name for chemical compound Sildenafil Citrate. It belongs to a group of medicines called phosphodiesterase 5 (PDE5) inhibitors.Viagra is used to treat erectile dysfunction in men and mostly elderly men and also to some extent pulmonary arterial hypertension. Sildenafil citrate was synthesised by a group of researchers from pharmaceutical firm Pfizer in the United Kingdom.The researchers had been tasked with coming up with medication for Hypertension and Angina pectoris( a symptom of ischaemic heart disease).During the course of the research where 4,000 adult males had been enrolled, a very observant nurse noted that most of the men(80%) lay with their stomachs facing down due to penile erection.Pfizer therefore decided to popularise and market the drugs as a remedy for erectile dysfunction globally rather than medication for Angina.Pfizer went a step forward and patented the medication in the year 1996.Viagra was later approved by the Food and Drug administration in March 1998 becoming the first approved oral treatment for erectile dysfunction.According to reliable information from Pfizer over 62 million men globally have bought Viagra directly or indirectly.From the year 2012 and onward the Governments of Mexico,Canada and USA have used up to a tune of 1.4 billion on the medication for their military service men.

viagra in australia

It is worth explaining how Viagra (Sildenafil Citrate) works in the body system.An erection is achieved when the penile muscles are filled with the blood.The engorgement of the penile muscles with blood is made possible when blood vessels delivering blood to the penis increases the supply while the bllod vessels taking the Blood out of the penis constricts hence reducing the amount of blood coming out of the penis.Ideally sexual stimulation leads to the production and release of nitric oxide into the blood system and eventually the penis.Nitric oxide catalyses the production of enzyme guanylate cyclase which in turn stimulates the production of Cyclic Guanosine monophosphate(cGMP) which is primarily responsible for maintaining and sustaining an erection.Phosphodiesterase(PDE-5) inhibits the production and functionality of enzyme cGMP and this is where Viagra comes in.Viagra inhibits the destruction of cGMP by PDE-5 thus allowing an erection to stay longer.

Viagra has several uses as listed below.

  • Erectile Dysfunction – this is the primary use of Viagra.It helps in sustaining erections in impotent and elderly men to complete sexual intercourse.
  • Pulmonary hypertension- Viagra can be used to treat Pulmonary arterial hypertension with less side effects.
  • High altitude pulmonary edema
  • Headache
  • Nasal Congestion
  • Flushing
  • Impaired vision
  • Hearing loss
  • Urinary tract infection
  • Diarrhoea

In Australia the drug was introduced into the market by the producer company Pfizer.The drug is sold in three doses 25mg,50 mg and 100mg in packets with 4 tablets per packet.Australian Pharmaceutical benefits scheme offers subsidy to the drug with a packet costing between and depending on the brand.The delivery of the drug is much easy as the customs allow it to be packaged anonymously and they allow trans-border deliveries with shipments taking as fast as 24 hours to reach the clients.Online purchase is sufficient with lots of online pharmacies offering sale and delivery to the desired locations of the clients.Websites such as www.Viagrasuisse.com onlinedoctor and many more websites where the identity of the client is kept confidential.

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