Viagra is the brand name of Sildefil- a prescription drug originally formulated and distributed by pharmaceutical giant, Pfizer. It is indicated for the treatment and management of erectile dysfunction. Sildenafil belongs to a class of drugs known as phosphodiesterase inhibitors. These drugs work by improving the flow of blood to the penile region during sexual stimulation or activity, thus resulting in erections. It is important to note that Viagra should only be taken when needed, as it can only work with sexual stimulation.

Viagra was originally formulated by Pfizer Pharmaceuticals as a treatment for high blood pressure and cardiovascular disease. Researchers observed that although sildenafil did not show improvements in lowering hypertension and cardiovascular disease, it did however produce erection in men.

It was in 1998 that the Food and Drug Administration approved Viagra as prescription drug for impotence. Consequently, it was in 2005 that the US FDA approved sildenafil for treating pulmonary hypertension.

In addition, Viagra is now being indicated as off-label treatment for Raynaud’s disease, a condition where the fingers and toes become cold and numb. Viagra is usually taken inc combination with doxorubicin in the treatment and management of cancer of the prostate.

Sildenafil under Pfizer brand name, Revation, is indicated to both men and women suffering from pulmonary hypertension or PAH as this drug has been proven to improve their ability to decrease shortness of breath and enable them to engage in exercise.

Safety Precautions when taking Viagra

There are numerous warnings when taking Viagra. It is important to note that since Viagra is a prescription-strength medication, it may interact with other drugs or may interfere with the actions of other medications.

  • Never use Viagra if you are taking nitrates to treat heart problems and other cardiovascular-related symptoms such as chest pain. The combination of Viagra and other nitrates can result in hypotension- a condition characterized by serious drop in blood pressure. Hypotension symptoms include dizziness, fainting, and in worse cases can trigger heart attack or stroke.
  • If you are using the recreational drug “poppers’ containing amyl nitrate, it is best that you stay away from Viagra to avoid side effects or adverse reactions.
  • Alpha blockers0 medications such as Hytrin and Flomax when combined with Viagra can result in significant drop in blood pressure.
  • Make sure to go for a checkup prior to taking Viagra. It is best to ensure that you are in good health before taking Viagra, especially you are diagnosed with heart rhythm issues, heart disease, or any condition that places extra strain on the heart.

Viagra for use in women

The Food and Drug Administration is yet to approve Viagra for treatment of erectile dysfunction in women. Although this is the case, there are ongoing studies that reveal Viagra can actually increase libido and sexual arousal in some women.

Viagra use during pregnancy

While the FDA has not yet approved the use of Viagra for sexual dysfunction on women, those who take Revatio, which is known to have the same active ingredient as Viagra, for pulmonary hypertension, should advise their doctors of their plans of getting pregnancy in the future.

Viagra is categorized by the FDA under pregnancy category B, meaning it is not expected to cause harm to the fetus. However this is the case, there are no sufficient studies that have been carried out among expecting mothers to prove its safety altogether.

It is still unknown if Viagra is excreted in breast milk. As this is the case, it is best to ask your doctor if it is safe to breastfeed while under Viagra intake.

The Side Effects of taking Viagra

The most common side effects occur among majority of men taking this blue pill. As they are minor, it should not be a cause of concern once they appear from time to time. If symptoms get more frequent, or worse, it is recommended to seek doctor’s advise whether to continue or stop taking Viagra.

  • headache
  • flushing of the face, chest, and neck regions
  • upset stomach, indigestion, and dyspepsia
  • abnormal bission
  • nasal congestion; runny nose
  • back pain
  • muscular pain or muscle tenderness
  • nausea
  • dizziness
  • rashes
  • diarrhea

The more common serious side effects can be felt by men who have existing medical condition or those who have allergic reactions to sildenafil:

  • lightheadedness
  • swelling of the feet, ankles, and hands
  • chest pain
  • irregular heart beat or rhythm
  • ringing in the ears
  • sudden hearing loss
  • change of vision or vision loss

If one or more of these symptoms arise, it is best to call your doctor immediately and stop intake altogether until properly assessed and evaluated by your doctor.

Symptoms such as hives, facial swelling, neck swelling, and inflammation of the lips, throat, and tongue are clear signs of allergic reaction. Seek medical help immediately for prompt treatment.

If you erection suddenly feels painful or if it lasts for more than four hours, you are suffering from priapism, a condition that needs emergency medical attention. This is done to prevent tissue damage and impotency altogether.

Viagra Interactions

If you are prescribed with a nitrate drug, such as in the case of nitroglycerine and isosorbide dinitrate for the treatment and management of chest pain and other health problems, you will be advised to stay away from Viagra due to the unpleasant interaction with sildenafil, you will most likely experience a sudden and dangerous drop in blood pressure.

Do not take Viagra if you are taking other drugs that treat erectile dysfunction.

Using Viagra is not recommended in men taking the following medications:

  • cimetidine
  • bosentan
  • imatinib
  • nefazodone
  • St John’s wort
  • Antibiotics such as clarithromycin and erythromycin
  • Antifingal medications
  • Anti-hypertension medications
  • Hepatitis C medication
  • HIV and AIDS drugs
  • Seizure medications
  • TB medications

Where to buy Viagra?

Online pharmacies are great places to purchase Viagra. Not only is Viagra cheaper online, you can get excellent treats when purchasing from the Internet. For first time consumers, some pharmacies even deliver free Viagra samples by mail. The best part is that they are delivered to you in discreet packaging so nobody will know that you purchased one for yourself online.