Levitra is an oral drug therapy for the treatment of erectile dysfunction. Levitra - also known by the chemical name vardenafil - is a selective inhibitor of cyclic guanosine monophosphate (cGMP)-specific phosphodiesterase type 5 (PDE5). Like impotence drugs Viagra and Cialis, Levitra is a phosphodiesterase-5 inhibitor (PDE-5). All of these drugs function in essentially the same way. In smooth muscle cells, cGMP (cyclic guanosine monophosphate) mediates smooth muscle relaxation. The more cGMP, the more the muscles can relax, the more blood can flow in, and the better the erection. PDE-5 breaks down cGMP, so PDE-5 inhibitors like Levitra keep this from happening, helping to maintain high levels of cGMP. A possible advantage of Levitra is that it is very selective in attacking PDE-5 without affecting other isoenzymes. This allows a smaller dose of Levitra to have the same effect as a larger dose of Viagra (an average Levitra dose is 10mg while an average Viagra dose is 50mg), even though the two drugs essentially work the same way.

Viagra Cialis Levitra danger
A small number of men have lost eyesight in one eye some time after taking Viagra, Cialis or Levitra. This type of vision loss is called non-arteritic anterior ischemic optic neuropathy (NAION). People who have a higher chance for NAION include those who have pre-existing eye problems, heart disease, are over 50 years old, have diabetes, have high blood pressure, have high cholesterol, or smoke. FDA has approved new labels for Viagra, Cialis and Levitra to include information on possible eyesight loss (NAION). Stop using Viagra, Cialis or Levitra if you have reduced vision or loss in your eyesight. Get medical help right away.

Alternative to Levitra
There are sexual enhancement alternatives to Viagra Cialis and Levitra. There are herbal supplements that support healthy stamina, libido, sensation, and sexuality in men and women. In recent years science has made breakthroughs in the understanding of sexual dysfunction. But, for hundreds of years, civilizations around the world have known about locally grown herbs that achieve wonderful results with far fewer side effects than prescription drugs. The potent herbal extracts that enhance sexual pleasure include ashwagandha, catuaba, cnidium monnieri, coleus forskohlii, horny goat weed, maca, mucuna pruriens, muira puama, passion flower, pfaffia paniculata, rhodiola, shilajit, tribulus terrestris extract, and tongkat ali.

Levitra side effects
The side effects of Levitra are many.  The most common side effects with Levitra are stuffy nose or runny nose, flushing, and a headache. Less frequent side effect include priapism, an erection that won't go away. A serious Levitra side effect is that involving eyesight. Vision changes, such as seeing a blue tinge to objects or having difficulty telling the difference between the colors blue and green can occur, along with a potentially serious loss of vision, particularly in those who have vascular disease.

Levitra treatment for spinal cord Injury
The impotence drug Levitra is helpful for men who have erectile dysfunction caused by spinal cord injury. Researchers evaluated the efficacy and tolerability of 12 weeks of treatment with Levitra versus placebo in 418 men with erectile difficulties due to a traumatic spinal injury. Erectile function improved with Levitra, known chemically as vardenafil, whereas there was little improvement in erectile function in the placebo group. Men treated with Levitra had a 76 percent success rate for penetration (versus 41 percent with placebo) and a 59 percent success rate for maintaining the erection (versus 22 percent with placebo).

Levitra Research Update
Vardenafil ( Levitra ) for erectile dysfunction: a systematic review and meta-analysis of clinical trial reports.
Markou S. 1Akrata Medical Center, Greece.
Trials of the efficacy and safety of Levitra in the treatment of male erectile dysfunction (ED) were meta-analysed. All available databases were searched (January 1, 2001-November 30, 2003). Trials were eligible if they included men with ED, compared Levitra with placebo, were randomized, were at least of 12 weeks duration, and assessed clinically relevant outcomes. Two reviewers independently evaluated study quality and extracted data in a standardized fashion. Nine trials (6809 men) met the inclusion criteria. In results pooled from seven fixed-dose trials, Levitra increases the Erectile Function domain of the International Index of Erectile Function questionnaire by 6.18 units (weighted mean difference (WMD)). Levitra also increases the percentage of erections firm enough to allow vaginal penetration (WMD: 26) and the percentage of sexual attempts that were successful per participant (WMD: 29.8). The percentage of men agreeing with the statement that 'the treatment they have been taking over the past 4 weeks improved their erections', is also in favor of Levitra (relative risk (RR): 3). These efficacy variables appeared greater at higher doses, although there are no significant differences between 10 and 20 mg dose. The same results were extracted for the two flexible 'as needed' dosing trials. Discontinuations are greater at the Levitra groups compared to placebo (RR: 2.25). Specific adverse events with Levitra included flushing, dyspepsia, headache, and rhinitis. Levitra was not significantly associated with serious cardiovascular events or death. Levitra, in all treatment regimens, shows to possess superior efficacy to placebo in the treatment of patients with erectile dysfunction.

Levitra not only enables men with erectile dysfunction (ED) to engage successfully in sexual intercourse, it also significantly improves partner satisfaction. Dr. Edwards of White House Surgery, Chipping Norton, UK, and his colleagues randomly assigned 260 men with erectile dysfunction to Levitra or an inactive "placebo" pill. Every 4 weeks over the 12-week study. When the effects of treatment for men and their partners were considered, Levitra significantly improved satisfaction scores compared with placebo orgasm satisfaction (60 percent vs 32 percent for men, 56 percent vs 32 percent for partners), pleasure (67 percent vs 44 percent for men; 64 percent vs 38 percent for partners), ease of erection (64 percent vs 41 percent for men and 60 vs 37 percent for partners), satisfaction with erection (60 percent vs 28 percent for men; 58 percent vs 27 percent for partners), satisfaction with the medication (62 percent vs 31 percent for men; 58 percent vs 30 percent for partners).

Viagra Cialis Levitra questions
Q. I read in a Levitra forum online that Levitra result comes in a few hours. Also, can Levitra be mixed with alcohol?
   A. Levitra vardenafil gives a result in an hour or within several hours. I would not recommend mixing alcohol and Levitra unless the alcohol is kept to one drink only.
Q. I heard Levitra can cause blindness. Is that true?
   A. There have been several cases reported of an association between Cialis, Levitra and blindness. If you have a 20 mg Levitra pill, only use a portion to avoid the Levitra side effects. Dosing Levitra with a smaller amount reduces side effects. High doses of Levitra has danger if a person takes it who has heart disease or is on heart medicines.
Q. I read in a Levtria brochure that Levitra is better than Viagra. Is that true?
   A. Some people prefer Levitra, others Cialis, and still others Viagra. It's a personal preference.
Q. Is Levitra sold online pill ? I want to order Levitra but don't know who to trust.
   A. Yes, you can order or buy Levitra online but a prescription is needed. You can buy Levitra at an online pharmacy but make sure they are legitimate and require a prescription.
Q. What's your opinion on cheapest generic Levitra?
   A. I would be surprised if a generic Levitra sold on an online pharmacy site would be effective. If you buy generic Levitra, you may be wasting your money. You are better off to purchase Levitra from a reliable pharmacy even if the cost is higher, Get a Levitra prescription from your doctor.
Q. What's the comparison between Levitra and Viagra? And what's the comparison between Cialis and Levitra.
   A. To compare, Levitra lasts longer than Viagra. Cialis and Levitra are more similar.
Q. Do you have a Levitra testimonial on your site?
   A. We focus mostly on natural Levitra alternatives, but we have heard that Levitra drug works in 60 to 80 percent of users.
Q. I tried a Levitra sample my doctor gave me, and it did not work but gave me a headache.
   A. Not all drugs, medicines, or supplements work in everyone. The Levitra dosage can make a difference, too.
Q. Does Levitra work in a woman?
   A. I doubt if a Levitra pill helps women.

Levitra Information
2004- German drug maker Bayer won approval to sell a new impotence drug across the European Union that it hopes will win business from Pfizer's breakthrough blockbuster Viagra. Bayer expects Levitra, which it is marketing with Britain's GlaxoSmithKline, to bring in up to 1 billion euros ($1.1 billion) a year, once it secures approval in the United States. Bayer said the round, orange pills would go on sale in Germany later this month. U.S. approval is expected later this year. ``This is an extremely important step for our pharmaceuticals business,'' chief executive Werner Wenning said. ``We believe that Levitra has the potential to become a new blockbuster,'' The battle for dominance in a condition that affects about one in five men is expected to be fierce. Cialis, a drug from Eli Lilly & Co. and Icos Corp. won European approval last year and is also expected to hit pharmacies in the United States later this year. All the drugs work in the same manner so some doctors believe it may be difficult for Levitra and Cialis to establish themselves when Viagra has been around for five years. Other say the drugs are an option for those whose conditions aren't helped by Viagra. Sales of Pfizer's blue, diamond-shaped Viagra pills totaled $1.7 billion last year. It is the only significant prescription product for erectile dysfunction. ``We think the competition will expand the overall market. Erectile dysfunction is still underdiagnosed,'' said a Pfizer spokeswoman. ``But in the end, we think patients will choose Viagra because it has a track record.'' Leverkusen-based Bayer has a lot riding on Levitra. It is still suffering from the 2001 withdrawal of the cholesterol lowering drug Lipobay, marketed in the United States as Baycol, after it was linked to dozens of deaths. Bayer Gets OK for New Impotence Drug.

Marketing of Levitra
Bayer initially developed Levitra and manufactures the drug. The orange/yellow Levitra pill has the "Bayer cross" trademark on it, Bayer registered the "Levitra" trademark, owns the Levitra.com domain, etc. Since GlaxoSmithKline has a better marketing infrastructure for prescription drugs, Bayer joined with GlaxoSmithKline to market the drug jointly. The two companies describe the relationship this way: Levitra is "co-developed and co-promoted by Bayer and GlaxoSmithKline".

More Viagra Cialis Levitra questions
Q. Can Levitra be taken with horny goat weed, lipoic acid, vinpocetine, or the mind booster acetylcarnitine?
   A. We prefer Levitra and other impotence drugs to be taken on days when herbs are not being used.

Q. I purchased Passion Rx recently and have a question about its use if a patient also uses ED medications. I saw some disclaimer info for Levitra and among the usual drugs it warned against using with Levitra was Yohimbe.
Do you know why Yohimbe might have a negative interaction with this class of ED drugs and is there enough Yohimbe in the Passion Rx formula to be of any concern. You advise to take the supplement first thing in morning and if I was to use Levitra the same day it would be 12 hours or more after.
   A. Yohimbe is a potent herb and Passion Rx is a potent combination. Usually the positive effects of many sex herbs is delayed for a day or two, One option is to take Passion Rx the day before the use of Levitra, but not the same day. This way you can have some of the benefit of the Passion Rx but it won't be too hard on your body taking the herbal combination and Levitra the same day. Another option is to take the Passion Rx 2 days in a row and then the third day take Levitra. Be very careful and use much lower amounts if you have heart problems or blood pressure problems and have approval by your doctor. In some people Passion Rx works so well that they not need Levitra or Viagra.

Q.  Sir, is it safe to take arginine with Levitra for erectile dysfunction? I am 30 years old and I am healthy. The only medical condition I am currently being treated for is GERD (acid reflux disease). My doctor prescribed me Nexium and Famotidine. If it is safe to combine the two, how much arginine would be safe with a 10 mg dose of Levitra. I would ask my own doctor but not two many doctors are familiar with herbs and dietary supplements.
   A. We can only provide general information on Levitra and arginine. It is up to the consumer and their doctor to determine whether to mix drugs and supplements. We are not very impressed with the ability of arginine to be effective for impotence.

Q. Can I take passion Rx and use Viagra or Levitra the same day?
   A. Not the same day. Passion Rx can be taken the day before and perhaps a little lower dosage of the pharmaceutical drug the day of intimacy. And, we suggest medical approval.

Viagra-alternative or Herbal Viagra Cialis Levitra
 

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