Now that Viagra has Competition - Let's Compare Viagra & Cialis

Thursday, May 15 2008

Reviewed by:  Daniel Williams, MD

This year alone, millions of men around the world will realize their difficulty to achieve an erection for one reason or another. This means they are now suffering from Erectile Dysfunction (ED). So what are the causes of ED, and how does it show up so suddenly?

Doctors agree on several reasons that could be responsible for ED:

1. Recreational usage of tobacco, alcohol and drugs
2. Illness-caused ED such as diabetes and prostate cancer
3. Circulatory issues such as uncontrolled blood pressure or Heart Disease
4. Hereditary issues that were passed along in the lineage

Fortunately, after many years and millions of dollars in medical research, the key to relieve suffering in those with Erectile Dysfunction is an enzyme found in the body called phosphodiesterase. There are dozes of subtypes of phosphodiesterase, but the one found in the penis is named phosphodiesterase-5 (PDE5). This enzyme regulates the blood flow of the arteries that control the blood supply to the penis necessary to achieve an erection. When there is an abundance of PDE5 in the vascular system, the arteries can remain constricted, limiting the flow of blood to penis and ultimately making it difficult to get an erection in some predisposed patients.

What are Levitra and Cialis?

Levitra (Vardenafil) and Cialis (Tadalafil) both fall into the category of drugs known as PDE5 inhibitors. When introduced to the blood stream they temporarily disable the PDE5 enzyme, which allows for the arterioles in the penis to relax more easily. This makes achieving an erection a very simplified process for those who suffer with ED when using a PDE5 inhibitor. Once the erection is over and the medication passes through the system, the PDE5 will be produced and regulated naturally again in the body.

How long does each one last in the system? 

As you may already know,Viagra was the first leading ED treatment drug on the market, and in the wake of the drug’s success, was followed by both Levitra and Cialis.  While both Levitra and Cialis drugs work in the same way, they last a very different amount of time in the system. Levitra takes effect in about 30-60 minutes and can stay in the system for up to six hours.  Levitra has also been proven to treat illness-related ED where other treatment options have failed.  Cialis is newest of these drugs, and can lasts in the system for an incredible 24-36 hours once taken, which allows for a larger window of opportunity for those who suffer with ED to enjoy sexual activity.

How do I know that I suffer from ED? 

It’s often easy to understand if you suffer from ED.  Keep in mind that it’s always best get an official diagnosis from your physician.

 Four Signs that you might have ED:

    * You simply cannot achieve an erection
    * Your erections are not hard enough for intercourse
    * Your erections do not last the duration of sex
    * Your erections are infrequent and only sometimes occur

Where can I get a prescription for these drugs online? 

You can order and compare Viagra, Cialis, and Levitra  from the comfort, convenience and privacy of your own home, simply by visiting AccessRX.com–With their U.S. licensed physicians, AccessRX.com can diagnose your condition quickly and write an online prescription for the treatment option best suited to treat your situation.  No matter which medication you choose, be it Cialis or Levitra, one thing is for sure: you will be able enjoy sexual intercourse once again!