| The most successful drugs for treatment of erectile dysfunction are the so-called oral PDE-5 inhibitors. Taken before sexual activity, the oral impotence drugs from this group work by enhancing the effects of nitric oxide, a chemical that relaxes smooth muscles in the penis and blood vessels during sexual stimulation. This causes an increase of the blood flow into the penis, which produces an erection. Read More about erectile dysfunction and ED drugs. Erectile dysfunction medications are offered by a great number of online pharmacies. Many of them provide generic versions of these drugs. When buying generic drugs you can save money, as generics have about 30%-80% lower price than the brand products. Click to learn the difference between brand and generic drugs. On the other hand, many reliable online pharmacies offer brand medications at reasonable prices. If you have a concern about the quality of the generic drugs, you can buy brand medications at discount prices. Click to buy brand viagra cialis levitra at discount prices from reliable pharmacies. |
| Viagra (Sildenafil citrate) Viagra is a potent oral prescription medication (PDE-5 inhibitor) that is able to improve markedly the sexual activity of men with erectile dysfunction. Viagra changed from an ineffective antianginal drug to a standard for erectile dysfunction therapy. The unusual side effect (penile erection) shown in the toleration study turned to a main indication of Viagra, treatment of impotence. Viagra® is a registered trademark of Pfizer Inc. Click HERE to read more about the discovery of Viagra. The official Web site for Viagra is www.viagra.com |
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| Cialis (Tadalafil) Cialis is a new drug for treatment of erectile dysfunction with a long-lasting effect (oral PDE-5 inhibitor), launched by Lilly ICOS LLC. in the major markets of Europe in February 2003. The advantage of Cialis is that its effect lasts longer than Viagra. In Europe, Cialis has gained the name the "weekender pill", as it enhances sexual performance for about 36 hours. Cialis® is a registered trademark of Lilly ICOS LLC. The official Web site for Cialis is www.cialis.com |
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| Levitra (Vardenafil HCl) Levitra is a new drug for treatment of erectile dysfunction (oral PDE-5 inhibitor) developed by Bayer/GlaxoSmithKline. Levitra acts in the same way as Viagra by blocking an enzyme called PDE-5. Levitra works faster than Viagra, and its effect lasts up to 5 hours after ingestion. Levitra® is a registered trademark of Bayer/GlaxoSmithKline. The official Web site for Levitra is www.levitra.com |
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| This information is for educational purposes only and should not be used as a substitute for the advice of a licensed physician. Please consult a licensed health care provider regarding your medical condition. For USA orders the Food and Drug Administration (FDA) requires an online prescription from a qualified medical practitioner to cover the purchase of prescription medications. All trademarks and registered marks are properties of their respective companies. |
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