Viagra Online Secrets: Viagra, Cialis, or Levitra?

Cialis, Levitra and Viagra have the same mechanism in helping a man suffering from erectile dysfunction to get an erection and to sustain one until sexual intercourse is done. The three ED medications are all PDE5 inhibitors. A PDE5 inhibitor is a compound that protects the enzyme in the penile region that causes the smooth muscles to relax. This particular enzyme needs the protection of a PDE5 inhibitor so that it does not break down. This breaking down will mean blood flow going into the penis will not be enough to achieve a strong erection.

Although these three erectile dysfunction drugs are very much the same, their subtle differences determine how long their effects are retained in the body. The subtle differences can be seen in their chemical make ups of these three compounds.

While Viagra's label indicates that the popular drug takes around an hour for it to take effect, in some men, the effects of the drug can manifest within 15 minutes after drinking it. The mean time for it to take effect however is 30 minutes much like its competitor Levitra. The effects of Viagra last up to 4 hours while Levitra lasts an hour more than the Pfizer product.

Cialis on the other hand works faster than the two drugs and the effects can last up to 36 hours in some men that's why Cialis is nicknamed as the weekend pill.

If you have taken Viagra before but it did not work for you, trying the other two is a good option. Your doctor will have to see however which one will work better based on your medical history.

The precautions taken with Viagra is the same as the precautions you should take when planning to take Cialis or Levitra or any other ED drug for that matter. As with other medications, you should inform your doctor about any type of drug allergies you have. You should tell him about the other drugs you are taking as well to make sure that no drug interaction happens.

Men with ED who recently underwent a stroke or have a history of irregular heart beats should discuss other ED treatment with their doctor instead of taking any of these ED drugs. Some men with a history of heart attacks may still take any of these drugs but constant monitoring by a doctor will be needed. Most of the adverse effects of these drugs are dosage-dependent that's why it is also important to stay true to the dosage prescribed to you instead of taking more than you should.

If you want to get Viagra online or want to buy Cialis or Levitra online, you should look for a reputable online pharmacy that sells the medication. There are a number of websites that sell Viagra online but unfortunately, not all of them have good reputation.