The Ultimate Viagra Review: What is Viagra?

Viagra is the brand name of sildenafil citrate, and it is used to treat erectile dysfunction and pulmonary arterial hypertension. Scientists based in Great Britain originally developed it, and Pfizer Inc., a US based pharmaceutical company introduced it onto the market. It works by inhibiting an enzyme called cGMP-phosphatase type 5 to delay the degradation of cGMP, which controls blood flow in the penis.

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History

Over the centuries, it has become the prime treatment for impotence, competing with Levitra and Cialis. Pfizer scientists designed Viagra when they were working on a drug for hypertension and angina pectoris. During the experiments, the scientists realized that instead of the drug preventing angina, it induced a marked penile erections. In 1998, US government approved it to treat erectile dysfunction. Researchers have realized that the drug has a significant placebo effect when individuals without erectile dysfunction use it.

Dosage

Usually, Viagra comes in blue, diamond-shaped pills, in doses of 100mg, 50mg, or 25mg. The patient is recommended to take just one pill between 30-minutes to 1 hour before sexual intercourse. It has been proven to help males with all degrees of erectile dysfunction. It gets effective within 30 to 60 minutes. Only take it when you need it. On the other hand, the one used to treat pulmonary arterial hypertension usually comes in white, film-coated tablets. The patient is required to take just one 20mg tablet three times a day.

Side Effects

According to scientists, the most common side effects include headache, muscle pain, stuffy nose, stomach upset, and impaired vision. Less commonly, some users have experienced frequent urination, bladder pain, bloody urine, and pain while urinating. In rare cases, it can lead to anxiety, chest pain, cold sweats, chills, convulsion,hearing loss, and nausea. Not all of its side effects are mentioned here, and you are advised to immediately call your doctor if you experience signs of an allergic reaction to Viagra, such as swelling of the throat, face, lips, or tongue.

Interactions

HIV patients using protease inhibitors should not use the drug before discussing with their doctors, because protease inhibitors increase the severity of its side effects. According to experts, such patients should not take more than 25mg within 48 hours. A patient taking alpha blockers should take the medication and Viagra at least four hours apart, to prevent experiencing a serious low blood pressure.

Price

One tablet of 25mg costs approximately $7.50, while one tablet of 50mg and one tablet of 100mg cost approximately $8.75. Amazon is the most trusted, secure, and safe site to visit if you need to buy Viagra online.

Overdose

You are advised to call seek immediate medical attention if you overdose this drug. Some of the symptoms you may experience when you overdose include chest pain, breath shortness, nausea, headache, dizziness, abnormal vision, and loss of hearing.

Missed Dose

Since it is taken only when needed, you are not likely to forget a dose.

What to Avoid

When taking Viagra, avoid drinking alcohol, because it can cause severe side effects. In addition, grapefruit may also interact with the drug and cause unwanted side effects. Therefore, avoid the use of grapefruit products while using this drug. Also, avoid using other medications, such as alprostadil and yohimbine, before consulting your doctor.

Conclusion

Some medicines can cause severe side effects when taken with Viagra. Therefore, inform your doctor about all your current medicines. If you are using a nitrate drug or any recreational drug, do not take Viagra, to prevent a sudden decrease in blood pressure. Finally, seek emergency medical attention if you experience a painful erection or if your erection lasts longer than 4 hours.

John Rogers

I have been working in General Practice since 2006.