Before you can become eligible for that Viagra revolution.

Sildenafil citrate, commonly known as Viagra, is a popular formulation by Pfizer used to treat men suffering from erectile dysfunction. An oral drug which works by releasing nitric oxide into the corpus cavernosum of the penile muscles, Viagra is the most known inhibitor of phosphodisterase type5 enzymes (PDE 5). The inhibition of the PDE 5 is significant in the attainment of erection.

As the first oral treatment for ED, Viagra still remains unparalleled in popularity. This is in spite of the stiff competition faced by the drug. Development over the years has witnessed the proliferation of internet sites who want to serve the needs of people who want to buy Viagra cheap deals. This practice, in itself, has been highly deplored as most of these people, who obviously buy Viagra online without prescription, not only stand the risk of putting their health in their uninformed hands, but also stand the risk of being at the mercy of the unscrupulous online sellers.

For anyone who wishes to be a part of the Viagra revolution, it is recommended that a doctor’s prescription would be invaluable in determining whether it’s safe to do so, or if one would need it all. For an effective evaluation by the doctor, it is pertinent that one supplies him with as honest an answer as possible on questions which could be in the following areas:

• Stroke
• eye or vision problems, including a rare inherited eye disease called retinitis pigmentosa
• heart disease, low or high blood pressure, angina, a history of heart attack, or other heart problems
• an unusual or allergic reaction to sildenafil, other medicines, foods, dyes, or preservatives
• trying to get pregnant or pregnant
• breast-feeding

Also, seeing a doctor would make one understand that the drug should be taken once daily through the oral route of administration. The drug is normally taking 1 hour before sexual activity. A missed dose should not be made up for in the next dosage. In the event of an overdose, one would learn about the need to contact a poison control centre or emergency room immediately. In addition, one would understand that a prescription is meant for just oneself, and not be shared with any one else.

A major advantage of seeing a doctor before taking sildenafil citrate is that one learns about other drugs which could interact with Viagra to affect the way it works in the system. On the basis of drug-drug interactions, some drugs are contraindicated for Viagra, while others determine the safe dose of Viagra that would be taken with them.

The following drugs fall under the contraindicated category:
• nitrates like nitroglycerin, amyl nitrite, isosorbide mononitrate, isosorbide dinitrate.
• Nitroprusside
• Cisapride
• methscopolamine nitrate
• other sildenafil products (Revatio)

The drugs which could interact with Viagra in controlled dosage include:
• medications for the treatment of HIV infection or AIDS
• medications for high blood pressure
• anti-fungal infection drugs, like itraconazole, ketoconazole, fluconazole, and voriconazole
• erythromycin
• cimetidine
• rifampin

The list is by no means exhaustive and could be better furnished by a doctor-patient interaction. Also, letting one’s doctor know if one smokes, drinks, or uses illegal drugs would help.

In conclusion, a doctor-patient interaction would help one to know that some side effects, which are not common to Viagra tablet users, may be indicative of a serious problem that could lead to more dire problems. Examples of such uncommon side-effects are chest pain, priapism (a medical disorder in which there is prolonged and painful erection), difficulty in breathing, seizure, etc.