How Levitra, Viagra, and Cialis Compare

All three, Viagra, Levitra and Cialis work in a similar manner to increase blood flow to the penis.

Levitra

How long it works: Up to 5 hours

Recommended time to take before sex: 25 to 60 minutes

Most common side effects: Headache, facial flushing

Advantage: Levitra demonstrates improved quality of erections and demonstrated rapid and reliable response. Levitra has less side effects compared to Viagra and lasts as long as Viagra in the body.

Viagra

How long it works: Up to 4.5-5 hours

Recommended time to take before sex: 60 minutes

Most common side effects: Headache, facial flushing, altered or blueish vision

Cialis

How long it works: Up to 24 hours

Recommended time to take before sex: 30 minutes to 12 hours

Most common side effects: Headache, dyspepsia/upset stomach, back pain

Advantage: Cialis has less side effects compared to Viagra and lasts longer in the body to increase spontaneity.

What is Levitra?
Levitra is the brand-name for vardenafil, a new tablet-based oral treatment for erectile dysfunction (ED), which is licensed for prescription in the UK, USA, Canada and other countries, enabling you to buy it online. Levitra has proved highly successful in clinical trials and is generating major interest as a real alternative to Viagra, Uprima and Cialis.

Levitra is a new oral PDE-5 inhibitor for the treatment of male erectile dysfunction (ED). Phosphodiesterase type 5 (PDE-%) is the predominate enzyme found in human penile erectile tissue and is associated with erections. PDE-5 inhibitors such as Levitra typically work by blocking this enzyme to enhance or prolong the erectile process.

Levitra is marketed by the leading pharmaceutical companies Bayer and GlaxoSmithKline, through a worldwide co-promotion and co-development agreement.

Where can I get Levitra?
It is possible to buy genuine Levitra and buy it online. We are a legitimate source for online Levitra because our pharmacy and physicians are located in the U.S. where Levitra can be prescribed and shipped.

How effective is Levitra for Impotence?
In Clinical Studies, Levitra Improved Quality of Erections and Demonstrated Rapid and Reliable Response

Bayer and GSK evaluated Levitra in an extensive clinical trial program that included more than 50 trials involving more than 5,700 men. Results from phase III clinical studies showed that Levitra:

-- Helped men get and keep an erection sufficient for satisfactory sexual performance

-- Provided first-time success and reliable improvement of erection quality for many men(2,3)

-- Worked in men of various ages and race and in those with co-existing medical conditions, such as diabetes, and in men who have had their prostate removed

-- Demonstrated a rapid response, allowing a man to initiate or respond to sexual stimulation when the time is right(4)

-- Can be taken without regard to meals making it convenient for use

Levitra has sparked major interest worldwide following the results of an in-depth clinical study. The study of over 800 men with ED showed:

The vast majority treated with Levitra experienced a reliable improvement in their erectile function from the first time they took the drug, and each time they took it afterward.
74% of men taking a 20 mg dose of Levitra and 77% taking a 10 mg dose were able to have intercourse on their first attempt, compared with 45% taking a placebo.
Those men receiving treatment who were successful the first time continued to achieve successful penetration in 91% of their subsequent attempts.
These results - recently presented at the 10th World Congress of the International Society for Sexual and Impotence Research in Montreal - have been welcomed by clinicians. This initial research has shown that Levitra gives more consistent results than other treatments on repeated use.

Levitra and ED-related depression
A second study has shown how effective Levitra was in treating the depressive symptoms experienced by men with ED. This study showed men taking Levitra reported improved erections and fewer depressive symptoms than those men taking a placebo.

Levitra and ED after prostate surgery
Levitra is extremely effective in treating ED following prostate cancer surgery. Another trial involving 440 men aged 44 - 77 years with ED

Following a prostate surgery found:

71% of patients who had undergone prostate removal reported significant improvements in erections with Levrita (20mg) versus 12 per cent in men taking placebo.
The study concluded that this was an important finding for Levitra, as ED following prostatectomy is usually severe.

Is Levitra more effective than Viagra?
There is currently no direct evidence to compare the effectiveness of treatments such as Levitra, against others such as Viagra and Uprima. However, findings do indicate that Levitra may be especially effective in treating specific types of ED, such as ED resulting from prostate surgery. . In clinical trials, Levitra was shown to work quickly as early as 16 minutes. More importantly, Levitra was shown to improve the sexual response for the majority of men the first time they took it, and it worked consistently over time.

Does Levitra have side-effects?
Those involved in the clinical trials reported mild / moderate side effects with the treatment, these mostly included headaches, flushing and rhinitis (nasal congestion). For otherwise healthy men, Levitra's main side effects were headache, flushing and a stuffy nose. About 2 percent became dizzy.

Who should avoid taking Levitra?
All patients should get a yearly physical checkup.

If you feel or know you have a heart problem or taking medication for your heart, you should definitley check with your local doctor to see if Viagra or Levitra is right for you.

Levitra should not be taken if you are taking nitrates or nitric oxide donors (these medications are used to treat angina or chest pain). It is also contraindicated in men whom sex is inadvisable and men older than 75 years old who concomitantly use potent CYP 3A4 inhibitors (such as ritonavir, indinavir, ketoconazole and itraconazole). The safety of Levitra has not been studied in these subgroups and should not take Levitra until further studies are available: severe hepatic (liver system) impairment , endstage renal disease requiring dialysis, hypotension, recent history of stroke or heart attack, unstable angina, and known hereditary retinal degenerative disorders.

The FDA said Levitra should never be used by men who:
* Take nitrate-containing drugs for heart conditions.

* Take medicines called alpha blockers, such as Cardura, for high blood pressure or enlarged prostate. The combination could cause plummeting blood pressure and fainting.

FDA also said Levitra is not for patients with a rare heart condition known as QT prolongation because the drug could cause an abnormal heart beat. QT prolongation, which is increased time between heart waves, this condition could result in rare cases of abnormal heart rhythms. The FDA said patients taking Levitra should see a doctor immediately if they faint, which could be a symptom of this condition.

Nor is it for men who suffered a recent heart attack or stroke who have very low blood pressure or uncontrolled high blood pressure.

For otherwise healthy men, Levitra's main side effects were headache, flushing and a stuffy nose. About 2 percent became dizzy.

Men are advised to get a thorough physical exam before using Levitra for the first time, the FDA said.

REFERENCES:

1. Package insert.

2. DocGuide.com

3. J.P. Morgan, European Agency for the Evaluation of Medicinal Products

Please note: Only a doctor knows what is right for you. The information provided on this site is for informational purposes only.