Sildenafil is actually just the technical name for Viagra. Viagra is composed of Sildenafil Citrate which is used to treat erectile dysfunctions and was developed by the company Pfizer. Pfizer first introduced Viagra as a treatment for angina however it quickly became apparent that Sildenafil Citrate had a definite impact on erectile activity. The drug was patented in 1996 within the United States as the first approved treatment in 1998 for impotence. Within one year Sildenafil was on the market under the brand name of Viagra quickly becoming the most famous and popular erectile dysfunction treatment available despite recent numerous alternatives.

How Does It Work?

Part of the psychological process behind gaining an erection involves the release of NO into the corpus cavernosum. This then activates an enzyme which triggers an increase in cGMP for muscle relaxation to increase the blood flow into the penis. Sildenafil acts by inhibiting something known as PDE5 which is the primary cause for the degradation of cGMP. Essentially speaking, Viagra helps to increase the levels of cGMP during sexual stimulation which leads to a harder and longer erection in general. Viagra will not work until you engage in sexual stimulation when the trigger for cGMP is produced however you will have approximately four hours after taking the medication before it no longer becomes effective.

Sildenafil Today

Sildenafil Citrate has exceeded more than $1 billion in annual sales in the past and continues to be a strong contender in the market. Many people who are suffering from an erectile dysfunction will choose Viagra as their treatment because it is reliable and trustworthy and has been in the market since the very beginning of impotence treatment. Sildenafil has been branded under many names since then including Revatio but Viagra remains the most popular and famous despite recent competition from brands such as levitra and cialis.

Things to Be Aware of

There are many things you will need to be aware of before taking Sildenafil just like any other drug medication. Unlike most medicines however, Sildenafil (or Viagra) should only be taken on an empty stomach or its effects may take much longer to begin. You should also avoid drinking grapefruit juice whilst taking Sildenafil as it can cause an increase in the blood levels of Sildenafil and make you more likely to experience side effects. Should you experience any loss of vision whilst taking Viagra, you should stop taking the medicine immediately and consult your doctor. You may also experience dizziness whilst taking this drug, if you do simply lie down and wait for the symptoms to pass. If you do experience unpleasant symptoms whilst taking Sildenafil Citrate you can choose an alternative medication instead such as Cialis or Levitra. Levitra tends to have fewer side effects than Viagra and Cialis lasts much longer should you need more time after taking the medication. Each one of these different types of erectile dysfunction treatments has their own benefits for different people. If you are unhappy with your choice of treatment simply speak to your doctor for a different medication.