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VardenafilThis page contains recent news articles, when available, and an overview of Vardenafil but does not offer medical advice. You should contact your physician with regard to any health issues or concerns.Overview: Vardenafil (when available) Vardenafil is used to treat male erectile dysfunction (impotence) and pulmonary arterial hypertension (PAH). Part of the physiological process of erection involves the release of nitric oxide (NO) in the corpus cavernosum. This then activates the enzyme guanylate cyclase which results in increased levels of cyclic guanosine monophosphate (cGMP), leading to smooth muscle relaxation in the corpus cavernosum, resulting in increased inflow of blood and an erection. Vardenafil is a potent and selective inhibitor of cGMP specific phosphodiesterase type 5 (PDE5) which is responsible for degradation of cGMP in the corpus cavernosum. This means that, with vardenafil on board, normal sexual stimulation leads to increased levels of cGMP in the corpus cavernosum which leads to better erections. Without sexual stimulation and no activation of the NO/cGMP system, vardenafil should not cause an erection. Used for the treatment of erectile dysfunction Mechanism Of Action: Vardenafil inhibits the cGMP specific phosphodiesterase type 5 (PDE5) which is responsible for degradation of cGMP in the corpus cavernosum located around the penis. Penile erection during sexual stimulation is caused by increased penile blood flow resulting from the relaxation of penile arteries and corpus cavernosal smooth muscle. This response is mediated by the release of nitric oxide (NO) from nerve terminals and endothelial cells, which stimulates the synthesis of cGMP in smooth muscle cells. Cyclic GMP causes smooth muscle relaxation and increased blood flow into the corpus cavernosum. The inhibition of phosphodiesterase type 5 (PDE5) by vardenafil enhances erectile function by increasing the amount of cGMP. News Articles on Vardenafil Effects of Phosphodiesterase Inhibitors on Contraction Induced by ... - 20 Apr 2009 ...by the drugs with the following rank order of efficacy: rolipram, forskolin, tadalafil, sodium nitroprusside, sildenafil, vinpocetine, vardenafil, EHNA. UroToday Male Drugs for Female Sexual Dysfunction - 20 Apr 2009 ...used for erectile dysfunction (the phosphodiesterase 5 inhibitors (PDE5I, such as Viagra® (sildenafil); Levitra® (vardenafil); and Cialis® (tadalafil)). PsychCentral.com Male Impotence Drugs Show Promise For Treating Female Sexual ... - Apr 18, 2009 They found one other distinction: females were more sensitive to Viagra®, or sildenafil, while males were most sensitive to Levitra®, or vardenafil. Science Daily (press release) PDE5 or get off the pot - Apr 15, 2009 Vardenafil and tadalafil last longer than sildenafil, but that's about it.â€? All of these pills have the same effect: they relax the smooth muscles lining Eye Weekly MEN'S HEALTH MATTERS: Treatments for erectile dysfunction - Apr 6, 2009 Vardenafil (Levitra) is the third PDE5 inhibitor, which is well absorbed and tolerated. It has duration of action similar to Viagra. Irish Times Love and Diabetes - Apr 13, 2009 These drugs (sildenafil, or Viagra, tadalafil, or Cialis, and vardenafil, or Levitra) work well for most men and some women (although they are not approved Diabetes Health (press release) Generic Levitra for Erectile Dysfunction - Apr 10, 2009 Levitra`s generic version is called as vardenafil. Following are the functions, side effects and the consumption of Levitra: Levitra is a kind of drug NewDesignWorld (press release) Weiblicher Orgasmus: Viagra & Co. für Frauen - Apr 16, 2009 Für Männer mit Erektionproblemen gibt es bereits seit einem Jahrzehnt Hilfe: die sogenannten PD-5-Hemmer, besser bekannt als Sildenafil (Viagra), Vardenafil FOCUS Online Ungebremster Blutfluss ins Gehirn - Apr 16, 2009 ..."Vardenafil, ein Medikament gegen Lungenhochdruck, greift genau an diesem Signalweg an. Wir haben erstmals getestet, wie sich die Gabe von Vardenafil auf Informationsdienst Wissenschaft (Pressemitteilung) Kommerzielle Potenzmittel helfen auch Frauen - Apr 17, 2009 Die Männerwelt profitiert schon seit Jahrzehnten von diesen Hemmern mit den Wirkstoffen Sildenafil, Vardenafil und Tadalafil.Für Frauen mit Störungen der Optikur Reporta Levitra crecimiento sobre competencia durante tres meses ... - Apr 3, 2009 Vardenafil mejora significativamente la función eréctil, la penetración y el coito exitoso en los pacientes, esto acorde a las medidas de eficacia primarias Invertia (Venezuela) Estudio desmiente problemas visuales con Viagra y Cialis - Apr 13, 2009 Eli Lilly diseñó y financió el estudio, que no evaluó a Levitra, o vardenafil, de Bayer AG, que es un fármaco similar. 24 Horas Libre Potenzprobleme: Vardenafil zur nachweislichen Stärkung der Manneskraft - Mar 6, 2009 Aktuelle Studien belegen, das neuartige Wirkstoffe wie Vardenafil Männer mit einer erektilen Dysfunktion zu einer anhaltenden und befriedigenden Erektion Medizin-Aspekte عقار لمقاومة الضعÙ? الجنسي اثبت Ù?اعليته - Feb 27, 2009 اعتدال سلامه من برلين: منذ نزوله الى الاسواق قبل Øوالي سبعة اعوام وعقار vardenafil المعالج للعجز الجنسي لدى الرجال الذي انتجته شركة باير الالمانية ÙŠØقق ايلاف Preisabsprachen bei Potenzmitteln? - Mar 5, 2009 Dabei geht es um die Preise für die Potenzmittel Viagra (Sildenafil), Cialis (Tadalafil) und Levitra (Vardenafil). Sollte sich der Verdacht bestätigen, apotheke-adhoc Konsultieren Sie vor der Einnahme von Potenzmitteln immer einen Arzt - Mar 16, 2009 Während Sildenafil und Vardenafil vier bis fünf Stunden wirken, schafft Tadalafil bis zu 36 Stunden. Alle drei hatten bis vor Kurzem nur eine Zulassung für GesundheitPro Botenstoff und Gegenspieler - Mar 16, 2009 Sildenafil, Vardenafil und Tadalafil setzen deshalb am Gefäßsystem im Penis an. Sexuelle Erregung führt dazu, dass Nerven dort den Botenstoff GesundheitPro Jóvenes compran pastillas para la disfunción eréctil, que se ... - Mar 2, 2009 Además del sildenafil aparecieron otros principios activos con acción similar como el tadalafil, que se registró comercialmente como Cialis, y el Vardenafil El Tiempo (Colombia) Advierten sobre el uso de Viagra en jóvenes - Mar 5, 2009 ...(Posterior al 2003 fueron aprobados el vardenafil y el tadalafil, drogas similares que difieren en los tiempos de acción). Tan pronto la “milagrosa pastilla Radio Rebelde Das Bio-Viagra vom Dach der Welt - Feb 27, 2009 ...blauen oder gelben Pillen mit den Phosphodiesterase-5-Hemmern Sildenafil (Viagra), Tadalafil (Cialis) oder Vardenafil (Levitra) gab es bisher nicht. Basler Zeitung Vardenafil (Levitra) - Jan 21, 2009 If you have erection problems, vardenafil (brand name Levitra) can give you a firmer, longer-lasting erection. This can help you have better sex with your guardian.co.uk, Improvement in Duration of Erection Following Phosphodiesterase ... - Jan 18, 2009 The ENDURANCE study evaluated the efficacy of vardenafil, a phosphodiesterase type 5 (PDE5) inhibitor, in men with erectile dysfunction (ED), by measuring UroToday, What's the evidence for vardenafil (Levitra)? - Jan 21, 2009 There's some good evidence that vardenafil (brand name Levitra) can help men with erection problems. 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These medications, which belong to class About.com - Drugs, Levitra Improves Erectile Function in Patients Taking High Blood ... - Jan 9, 2009 ...be reestablished in men taking either one or multiple anti-hypertensive medications if the treatment also includes the use of vardenafil HCl (Levitra). Meadow Free Press, Research and Markets: Bayer is Aiming to Grow the Pharmaceuticals ... - Jan 30, 2009 Current growth drivers include: Avalox/Avelox (moxifloxacin), Betaferon/Betaseron (interferon beta-1b), Kogenate (Factor VIII), Levitra (vardenafil), Earthtimes (press release), Levitra Improves The Duration Of Your Erection - Jan 20, 2009 The men who took part were either given 10mg of Levitra, (vardenafil) or a placebo pill which they were told to take one hour before sexual intercourse. UKMedix Health News, Substandard imported drugs flood markets - Jan 11, 2009 Besides this, salt tadalafil (Cialis) and vardenafil (Levitra) salts are also being smuggled from India and used for the same purpose. The News International, Dysfonction érectile : quand un trouble peut en cacher un autre... - Jan 26, 2009 Un autre travail -l’étude REALISE pour Real Life Safety and Efficacy of Vardenafil- s’est intéressée aux conditions réelles d’utilisation d’un traitement Destination Santé, Dysfonction érectile : Les moins de 40 ans souffrent en silence et ... - Jan 28, 2009 Un autre travail réalisé pour Real Life Safety and Efficacy of Vardenafil s'est intéressé aux conditions réelles d'utilisation d'un traitement contre la Al Bayane, TRATAR A DISFUNÇÃO ERÉTIL É PRIORIDADE MASCULINA - Feb 1, 2009 Outra pesquisa, denominada REALISE (The real-life safety and efficacy of vardenafil), acompanhou o desempenho de aproximadamente 74 mil homens, Portal Nacional de Seguros, Cincuenta y más: ¿Viagra, Cialis o Levitra? - Jan 16, 2009 Entre las sustancias activas desarrolladas por laboratorios farmacéuticos, destacan tres; sildenafil (Viagra de Pfizer), vardenafil (Levitra de Bayer), La Opinión, Livsfarliga potensmedel pÃ¥ nätet - Jan 9, 2009 Läkemedelsverket har i 28 potensmedel som säljs pÃ¥ internet letat efter de aktiva ämnena i Viagra (sildenafil), Cialis (tadalfil) och Levitra (vardenafil) Sydsvenskan, Silvia Ojanguren - Jan 22, 2009 Su objetivo fue determinar la tolerabilidad y eficacia de vardenafil en pacientes que sólo sufrÃan de DE, y en gente cuyo padecimiento estaba asociado con El Universal (México), Viagra e seus mitos: Parte 1 - Jan 27, 2009 Depois surgiram novas drogas no mercado, como o Levitra ou Vivanza (vardenafil), o Cialis (tadalafil) e outras. Hoje, essas 3 drogas (classe de medicamento Zero Hora, Ein starker Pilz aus Tibet gegen die Potenzschwäche - Jan 22, 2009 ...blauen oder gelben Pillen mit den Phosphodiesterase-5-Hemmern Sildenafil (Viagra), Tadalafil (Cialis) oder Vardenafil (Levitra) gab es bisher nicht. Südostschweiz, Disfunzione erettile: Cialis, Levitra, Viagra associati ad amnesia ... - Jan 23, 2009 I farmaci interessati dalla revisione sono: Viagra ( Sildenafil ), Cialis ( Tadalafil ) e Levitra ( Vardenafil ). L’amnesia transitoria globale è XagenaSalute, Generic Viagra Online Cheap - 25 Dec 2008 Wholesale Generic Viagra Sildenafil cheapest prices online for Generic Cialis Generic Levitra Generic Viagra Sildenafil Tadalafil Vardenafil. OpEdNews, Vardenafil Improves Erectile Function and Duration of Erection in ... - Dec 12, 2008 By Chris Berrie BRUSSELS, Belgium -- December 12, 2008 -- The phosphodiesterase 5 (PDE5) inhibitor vardenafil is well tolerated and significantly improves DG News Cheap Levitra Order Vardenafil - Dec 11, 2008 Types are Cheap Levitra Order Vardenafil patients health problems. Laws across state agencies such alone created an enforcement priority, Granada digital, Vardenafil Viagra Cialis - Dec 11, 2008 Events related to sweep a Vardenafil Viagra Cialis. Endoscopy usually with sites vipps certification: , cvs washington inc.. Possibility of united states Granada digital, Tadalafil Most Effective Treatment for Severe Erectile Dysfunction ... - Dec 9, 2008 By Chris Berrie BRUSSELS, Belgium -- December 9, 2008 -- Tadalafil is slightly more effective than sildenafil and vardenafil in treating men with severe DG News Ask the Mayo Clinic: Consider cost to your health before ordering ... - Dec 14, 2008 Viagra and other erectile dysfunction medications such as Levitra (vardenafil) and Cialis (tadalafil) -- known as phosphodiesterase (PDE-5) inhibitors Seattle Post Intelligencer Man pleads guilty to selling Viagra - Dec 17, 2008 Instead, the man sold the deputy 12 pills from his prescription for Vardenafil, a drug similar to Viagra. The deputy met with the man a third time Nov. Janesville Gazette, “UNA COPPIA PER LA COPPIAâ€?, EVENTO TEATRALE SULLA SALUTE SESSUALE - Dec 17, 2008 In più, la sua disponibilità in tre diversi dosaggi (vardenafil 5, 10 e 20 mg) consente al medico una migliore definizione della terapia in base alle Farmacia.it, Impotencia sexual sÃntoma de otra enfermedad - Dec 7, 2008 A lo largo de estos 5 años, Levitra (Vardenafil), ha demostrado ser un tratamiento eficaz y seguro para los pacientes que además sufren de alguna enfermedad Terra México, Impotenz kann das Symptom einer lebensbedrohlichen Erkrankung sein - Dec 8, 2008 Ziel der Studie war die Untersuchung der Wirkamkeit und Verträglichkeit von Levitra ® (Vardenafil) bei Patienten mit erektiler Dysfunktion - einerseits ohne lifepr.de (Pressemitteilung), Potensörter kan vara farliga - Dec 8, 2008 En modifierad version av vardenafil pÃ¥träffades ocksÃ¥ i ett av preparaten. Denna modifierade substans finns inte dokumenterad och kan därför ha en annan Dagens Medicin, Erektion, Impotenz, Erguss: Penis Geheimnisse mit Impotenz Behandlung - Dec 22, 2008 Die häufigsten medizinischen Behandlung einer erektilen Dysfunktion ist PDE5-Hemmer Drogen, zu denen auch Sildenafil (Viagra), Vardenafil (Levitra) und OA News, Aumenta disfunción eréctil - Dec 10, 2008 El objetivo del estudio fue determinar la tolerabilidad y eficacia de Levitra (Vardenafil) en pacientes que sólo sufrÃan de DE, y en pacientes cuyo El Sol de Tijuana, 生物科技æ¥è€…，應ä¾?法律è¦?定，æ??出衛生署申請藥å“?之許å?¯è‰ï¼Œå§‹å?¯ä¸Šå¸‚販售 - Dec 3, 2008 ...å¨?而剛R)ã€?Tadalafil(犀利士R)ã€?Vardenafil 我的E政府, Brand Names/Synonyms: Vardenafil is also known by the following brand names and/or synonymsLevitra; VARDENAFIL, LEVITRA; VDN; Vardenafil Drug Category: Vardenafil is categorized under the following by the FDA: Anti-Impotence Agents; Vasoconstrictor Agents; Phosphodiesterase Inhibitors; ATC:G04BE09 Dosage Forms: TABLET (5, 10, and 20 mg) Absorption: Vardenafil is rapidly absorbed with absolute bioavailability of approximately 15%. Interactions: Interactions for Vardenafil: Effect of other drugs on Vardenafil In vitro studies: Studies in human liver microsomes showed that vardenafil is metabolized primarily by cytochrome P450 (CYP) isoforms 3A4/5, and to a lesser degree by CYP2C9. Therefore, inhibitors of these enzymes are expected to reduce vardenafil clearance. In vivo studies: Cytochrome P450 Inhibitors Cimetidine (400 mg b.i.d.) had no effect on vardenafil bioavailability (AUC) and maximum concentration (Cmax) of vardenafil when co-administered with 20 mg Vardenafil in healthy volunteers. Erythromycin (500 mg t.i.d) produced a 4-fold increase in vardenafil AUC and a 3-fold increase in Cmax when co-administered with Vardenafil 5 mg in healthy volunteers. It is recommended not to exceed a single 5 mg dose of Vardenafil in a 24-hour period when used in combination with erythromycin. Ketoconazole (200 mg once daily) produced a 10-fold increase in vardenafil AUC and a 4-fold increase in Cmax when co-administered with Vardenafil (5 mg) in healthy volunteers. A 5-mg Vardenafil dose should not be exceeded when used in combination with 200 mg once daily ketoconazole. Since higher doses of ketoconazole (400 mg daily) may result in higher increases in Cmax and AUC, a single 2.5 mg dose of Vardenafil should not be exceeded in a 24-hour period when used in combination with ketoconazole 400 mg daily. HIV Protease Inhibitors: Indinavir (800 mg t.i.d.) co-administered with Vardenafil 10 mg resulted in a 16-fold increase in vardenafil AUC, a 7-fold increase in vardenafil Cmax and a 2-fold increase in vardenafil half-life. It is recommended not to exceed a single 2.5 mg Vardenafil dose in a 24-hour period when used in combination with indinavir. Ritonavir (600 mg b.i.d.) co-administered with Vardenafil 5 mg resulted in a 49-fold increase in vardenafil AUC and a 13-fold increase in vardenafil Cmax. The interaction is a consequence of blocking hepatic metabolism of vardenafil by ritonavir, a highly potent CYP3A4 inhibitor, which also inhibits CYP2C9. Ritonavir significantly prolonged the half-life of vardenafil to 26 hours. Consequently, it is recommended not to exceed a single 2.5 mg Vardenafil dose in a 72-hour period when used in combination with ritonavir. Other Drug Interactions: No pharmacokinetic interactions were observed between vardenafil and the following drugs: glyburide, warfarin, digoxin, Maalox, and ranitidine. In the warfarin study, vardenafil had no effect on the prothrombin time or other pharmacodynamic parameters. Effects of Vardenafil on other drugs In vitro studies: Vardenafil and its metabolites had no effect on CYP1A2, 2A6, and 2E1 (Ki > 100uM). Weak inhibitory effects toward other isoforms (CYP2C8, 2C9, 2C19, 2D6, 3A4) were found, but Ki values were in excess of plasma concentrations achieved following dosing. The most potent inhibitory activity was observed for vardenafil metabolite M1, which had a Ki of 1.4 uM toward CYP3A4, which is about 20 times higher than the M1 Cmax values after an 80 mg Vardenafil dose. In vivo studies: Nitrates: The blood pressure lowering effects of sublingual nitrates (0.4 mg) taken 1 and 4 hours after vardenafil and increases in heart rate when taken at 1, 4 and 8 hours were potentiated by a 20 mg dose of Vardenafil in healthy middle-aged subjects. These effects were not observed when Vardenafil 20 mg was taken 24 hours before the NTG. Potentiation of the hypotensive effects of nitrates for patients with ischemic heart disease has not been evaluated, and concomitant use of Vardenafil and nitrates is contraindicated. Nifedipine: Vardenafil 20 mg, when co-administered with slow-release nifedipine 30 mg or 60 mg once daily, did not affect the relative bioavailability (AUC) or maximum concentration (Cmax) of nifedipine, a drug that is metabolized via CYP3A4. Nifedipine did not alter the plasma levels of Vardenafil when taken in combination. In these patients whose hypertension was controlled with nifedipine, Vardenafil 20 mg produced mean additional supine systolic/diastolic blood pressure reductions of 6/5 mm Hg compared to placebo. Alpha-blockers: When Vardenafil 10 or 20 mg was given to healthy volunteers either simultaneously or 6 hours after a 10 mg dose of terazosin, significant hypotension developed in a substantial number of subjects. With simultaneous dosing of Vardenafil 10 mg and terazosin 10 mg, 6 of 8 subjects experienced a standing systolic blood pressure of less than 85 mm Hg. With simultaneous dosing of Vardenafil 20 mg and terazosin 10 mg, 2 of 9 subjects experienced a standing systolic blood pressure of less than 85 mm Hg. When Vardenafil dosing was separated from terazosin 10 mg by 6 hours, 7 of 28 subjects who received 20 mg of Vardenafil experienced a decrease in standing systolic blood pressure below 85 mm Hg. In a similar study with tamsulosin in healthy volunteers, 1 of 24 subjects dosed with Vardenafil 20 mg and tamsulosin 0.4 mg separated by 6 hours experienced a standing systolic blood pressure below 85 mm Hg. Two of 16 subjects dosed simultaneously with Vardenafil 10 mg and tamsulosin 0.4 mg experienced a standing systolic blood pressure below 85 mm Hg. The administration of lower doses of Vardenafil with alpha-blockers has not been completely evaluated to determine if they can be safely administered together. Based on these data, Vardenafil should not be used in patients on alpha-blocker therapy. Ritonavir and indinavir: Upon concomitant administration of 5 mg of Vardenafil with 600 mg BID ritonavir, the Cmax and AUC of ritonavir were reduced by approximately 20%. Upon administration of 10 mg of Vardenafil with 800 mg TID indinavir, the Cmax and AUC of indinavir were reduced by 40% and 30%, respectively. Alcohol: Alcohol (0.5 g/kg body weight: approximately 40 mL of absolute alcohol in a 70 kg person) and vardenafil plasma levels were not altered when dosed simultaneously. Vardenafil (20 mg) did not potentiate the hypotensive effects of alcohol during the 4-hour observation period in healthy volunteers when administered with alcohol (0.5 g/kg body weight). Aspirin: Vardenafil (10 mg and 20 mg) did not potentiate the increase in bleeding time caused by aspirin (two 81 mg tablets). Other interactions: Vardenafil had no effect on the pharmacodynamics of glyburide (glucose and insulin concentrations) and warfarin (prothrombin time or other pharmacodynamic parameters). Chemical IUPAC Name: 4-[2-ethoxy-5-(4-ethylpiperazin-1-yl)sulfonyl-phenyl]-9-methyl-7-propyl-3,5,6,8-tetrazabicyclo[4.3.0]nona-3,7,9-trien-2-one : |
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