Viagra is one of the most well known drugs in the world. It was approved in 1998 as the first medication for treating erectile dysfunction in men. Although Viagra does have some notoriety, it is still the top selling product of the pharmaceutical giant Pfizer. The year 2012 saw the highest revenue from Viagra which is reported at over 2 billion dollar with over 8 million prescriptions purchased. As erectile dysfunction has become more and more prevalent in today’s world, Viagra is still selling strongly. Over 45 million men have bought and consumed Viagra in the last 15 years.
The true name of Viagra was sildenafil. It was first used as a medication for treating heart problems. But when the drug was not so great for its initial use, it has a very interesting side effect – causing erections in men. After noticing this side effect, Pfizer had done more studies about sildenafil and then the drug was renamed as Viagra to sold as a drug for treating erectile dysfunction.
The way Viagra works is quite simple. It helps create and maintain an erection in men by pumping blood into the male sexual organ and thus result to an erection. The most common dosages for Viagra is 25mg, 50mg and 100 mg. The drug is taken by mouth whenever a man wants to have a sexual activity. One thing to notice is that it is still required a sexual stimulation to achieve an erection when taking Viagra.
Viagra can be considered as safe and as millions of men have taken the drug, you can buy and use the drug with confidence. However, just like most medications, Viagra can interact with other drugs. Reports have been shown that some antibiotics like Cimetidine and Erythromycin can and will interact with Viagra. This happens because the body breaks down these antibiotics just similarly to how it breaks down Viagra. Then when the two drugs are taken simultaneously, they will compete with each other to be broken down. This will make less Viagra, and less antibiotic as well, getting broken down which results to an increase of the drug concentration and therefore, their effects, both negative and positive, will be intensified. All these effects will cause many troublesome problems, such as dizziness, headache, nausea, high blood pressure. Therefore, if you are taking any other drug, you have to seek a medical advice from a professional before considering taking Viagra.
Also, due to the blood pumping effect of Viagra, the drug is suspected of causing some cardiovascular problems to those who have taken it. It is quite reasonable because, after all, Viagra was first used as a medication for a heart condition called angina. Some other less known side effects of Viagra is a sudden hear loss and vision loss. In other less severe reports, the drug could related to irritation in the eyes and the ears.
All in all, if you are thinking about using Viagra, you need to make sure that you buy the drug from a reliable source and you have to ask you doctor first if you are already have medical problems. You need to read the instruction carefully and must take the recommended dosage. An overdose of Viagra can lead to the dangerous side effects. And if you notice any abnormal things in your body after taking Viagra, you should seek help from a doctor immediately.