Vardenafil: Mechanism of Action and Pharmacology

Other > bayer vardenafil


↑ Schools of Pharmacy (Glen L. Stimmel, Pharm.D., and Mary A.

Property Description Units Notes
Generic Name Vardenafil N/A Root name of the drug
Brand Names Levitra, Staxyn, Vivanza N/A Common commercial names
Drug Class Phosphodiesterase type 5 inhibitor N/A Mechanism of action
Approved Use Erectile Dysfunction N/A Main therapeutic indication

Gutierrez, Pharm.D.) and Medicine (Glen L. Stimmel, Pharm.D. ), University of Southern California, Los Angeles, California. "Counseling Patients About Sexual Issues: Drug-Induced Priapism". Class Antifibrotics; Antihypertensives; Bronchodilators; Erectile dysfunction therapies; Imidazoles; Piperazines; Small molecules; Sulfones; Triazines Mechanism of Action Type 5 cyclic nucleotide phosphodiesterase inhibitors Orphan Drug Status NoOrphan designation is assigned by a regulatory body to encourage companies to develop drugs for rare diseases. Orphan designation is assigned by a regulatory body to encourage companies to develop drugs for rare diseases. The FDA has approved a new generic equivalent to Levitra for erectile dysfunction. Officials with the FDA have approved the Abbreviated New Drug Application (ANDA) for Alembic’s Vardenafil Hydrochloride Tablets, 2.5 mg, 5 mg, 10 mg, and 20 mg. The drug is indicated for the treatment of erectile dysfunction.1 According to Alembic, the approved ANDA is therapeutically equivalent to Bayer’s vardenafil hydrochloride (Levitra) tablets, 2.5 mg, 5 mg, 10 mg, and 20 mg.1 Vardenafil hydrochloride tablets were developed by GlaxoSmithKline and Bayer, and approved by the FDA in 2003.2 Vardenafil hydrochloride tablet have an estimated market size of $35 billion for 12 months ending June 2020, according to data obtained by Alembic.1 Alembic Pharmaceuticals Receives USFDA Final Approval for Vardenafil Hydrochloride Tablets, 2.5 mg (base), 5 mg (base), 10 mg (base), and 20 mg (base) [news release]. Some Branded Drugs Going Generic in 2018. You'll soon need a free account to access DrugBank. Core data resources will remain freely available. Explore without interruption, create a free account. Sexual Encounter Profile (SEP), questions 2 and 3date_rangeTime Frame:12 weeksenhanced_encryptionnoSafety Issue: International Index of Erectile Function (IIEF) - EF (Erectile Function) domaindate_rangeTime Frame:12 weeksenhanced_encryptionnoSafety Issue: Global Assessment Questionnaire (GAQ)date_rangeTime Frame:12 weeksenhanced_encryptionnoSafety Issue: Safety and tolerabilitydate_rangeTime Frame:12 weeksenhanced_encryptionyesSafety Issue: Vardenafil, sold under the brand name Levitra among others, is a medication that is used for treating erectile dysfunction. Vardenafil's indications and contraindications are the same as with other PDE5 inhibitors; it is closely related in function to sildenafil citrate (Viagra) and tadalafil (Cialis). The difference between the vardenafil molecule and sildenafil citrate is a nitrogen atom's position and the change of sildenafil's piperazine ring methyl group to an ethyl group. Tadalafil is structurally different from both sildenafil and vardenafil.

Tainted supplements

Therefore, it should not be taken by people taking other medications that affect the QT interval (such as amiodarone). Vardenafil was co-marketed by Bayer Pharmaceuticals, GlaxoSmithKline, and Schering-Plough under the brand name Levitra. As of 2005, the co-promotion rights of GSK on Levitra have been returned to Bayer in many markets outside the US. Thus, because of European Union trade rules, parallel imports might result in Vivanza sold next to Levitra in the EU. An orally disintegrating form, marketed as Staxyn and Levitra Soft, has been gaining approvals in countries such as the United States[11] and Canada.

Special Populations Considerations

The US Food and Drug Administration (FDA) has found vardenafil and other synthetic PDE5 inhibitors in numerous products marketed as "herbal" supplements or "all natural" products for male enhancement. ^ a b c d "Levitra (vardenafil hydrochloride) tablets, for oral use Initial U.S. Approval: 2003". ^ "Levitra (Vardenafil) is A Drug Used to Treat Erectile Problems in Men" (in German). "Potency, selectivity, and consequences of nonselectivity of PDE inhibition".

Role in Erectile Dysfunction Management

^ "FDA Announces Revisions to flibanserin Labels for Cialis, Levitra and Viagra". Archived from the original on July 9, 2009. "Pharmacology and drug interaction effects of the phosphodiesterase 5 inhibitors: focus on alpha-blocker interactions". "The QT Interval and Selection of Alpha-Blockers for Benign Prostatic Hyperplasia". ^ "New erectile dysfunction treatment Staxyn approved in the U.S. Vardenafil's relatively short effective time is comparable to but somewhat longer than sildenafil's.

Product Dosage Quantity + Bonus Price
Levitra Generic10mg10 Pills28.93€ 27.55€
Levitra Generic20mg270 + 10 Pills376.33€ 358.41€
Levitra Generic10mg360 + 10 Pills407.94€ 388.51€
Kamagra100mg84 + 6 Pills264.44€ 251.85€
Cialis Professional40mg270 + 6 Pills898.37€ 855.59€
Viagra Original100mg12 Pills72.54€ 69.09€
Cialis Professional20mg90 + 2 Pills241.49€ 229.99€
Kamagra Oral Jelly100mg110 + 9 Sachets334.87€ 318.92€
Viagra Super Active100mg60 + 8 Pills116.84€ 111.28€
Tadalista Super Active20mg30 + 6 Pills128.09€ 121.99€
Cialis Generic40mg360 + 10 Pills477.87€ 455.11€

Despite the structural differences between vardenafil and sildenafil, they both show similar ocular side effects due to their similar selectivity overlap with PDE6, an enzyme found in the eye.

Trial summary

Porst Hamburg, 20354, Germany Completed Praxis Hr. Beyond its indications for erectile dysfunction, vardenafil may be effective in the treatment of premature ejaculation, where it may significantly increase the time from penetration to ejaculation. The common, adverse drug reactions (side effects) are the same as with other PDE5 inhibitors. The frequent vardenafil-specific side-effect is nausea; the infrequent side effects are abdominal pain, back pain, photosensitivity, abnormal vision, eye pain, facial edema, hypotension, palpitation, tachycardia, arthralgia, myalgia, rash, itch, and priapism. One possibly serious, but rare, side effect with vardenafil is heart attack. Also, in rare cases, vardenafil use may cause priapism, a very painful emergency condition that can cause impotence if left untreated.

  • Bayer Vardenafil can improve quality of life for men with ED.
  • The medication works best in conjunction with psychological support if needed.
  • It is not approved for enhancing athletic performance.
  • The drug's duration can be affected by age and health.
  • Some patients may require dose adjustments for optimal results.
  • Vardenafil may interact with antibiotics and antifungals.
  • It is part of a comprehensive approach including lifestyle management.
  • The patent and marketing rights belong to Bayer.
  • Always inform your doctor about any side effects experienced during treatment.

In October 2007, the U.S. Food and buy tadalista 60 Drug Administration (FDA) announced that a warning about possible deafness (sudden hearing loss) would be added to the drug labels of vardenafil, and other PDE5 inhibitors. Vardenafil should not be used by people taking nitrate medications, because combining them with vardenafil might provoke potentially life-threatening hypotension (low blood pressure). Further, vardenafil causes lengthening of the QT interval. Therefore, it should not be taken by people taking other medications that affect the QT interval (such as amiodarone).

  • Patients with severe kidney or liver impairment need dose adjustment.
  • Not recommended for those with severe heart conditions.
  • Caution in patients with retinitis pigmentosa.

Vardenafil was co-marketed by Bayer Pharmaceuticals, GlaxoSmithKline, and Schering-Plough under the brand name Levitra.

Contraindication Explanation Note
Nitrate medication use Can cause severe hypotension Avoid use within 24 hours of nitrates
Severe cardiovascular disease Increased risk of adverse cardiac events Consult with cardiologist
Hypersensitivity to Vardenafil Known allergy to the drug or ingredients Discontinue if allergic reactions occur
Liver impairment Reduced metabolism leading to higher drug levels Dose adjustment may be necessary

As of 2005, the co-promotion rights of GSK on Levitra have been returned to Bayer in many markets outside the US. Thus, because of European Union trade rules, parallel imports might result in Vivanza sold next to Levitra in the EU. An orally disintegrating form, marketed as Staxyn and Levitra Soft, has been gaining approvals in countries such as the United States[11] and Canada. The US Food and Drug Administration (FDA) has found vardenafil and other synthetic PDE5 inhibitors in numerous products marketed as "herbal" supplements or "all natural" products for male enhancement. ^ a b c d "Levitra (vardenafil hydrochloride) tablets, for oral use Initial U.S.

Where to participate

- Pharmaceutical Processing". Archived from the original on April 6, 2012. ^ "Staxyn - New Innovation in Erectile Dysfunction Helps Younger Men Rise to the Occasion". U.S. Food and Drug Administration (FDA).

Safety Profile and Adverse Effects

^ Tucker J, Fischer T, Upjohn L, Mazzera D, Kumar M (October 2018). "Unapproved Pharmaceutical Ingredients Included in Dietary Supplements Associated With US Food and Drug Administration Warnings". About clinical trials Why participate What to expect Additional information About clinical trials Why participate What to expect Additional information Bayer.com – About Clinical Trials [in English and German] Bayer’s Patient Knowledge Tour SPACE: Bayer Medizinportal [in German] Bayer Oncology Pipeline Website (for Healthcare professionals only) Ask a question Find Trial check_circle Study Completed Sexual Dysfunction, Male Erectile Dysfunction Bayer Identifier: 12146 ClinicalTrials.gov Identifier: NCT00377793 EudraCT Number: Not Available EU CT Number: Not Available Ask a question Download Results download Levitra (Vardenafil, BAY38-9456) Partner Satisfaction Study II Trial purpose This trial is to provide additional important information on the impact of the treatment of the man its ED with vardenafil on partnership. This study is being run at up to 50 study centers in Europe and South Africa to evaluate the use of vardenafil in adult men with erectile dysfunction (often called impotence), and their female partner's sexual quality of life. Many men experience occasional erectile problems during their lives.

Recent COVID-19 Vaccination Associated With Nearly Half the Risk of Household Transmission

However, when this becomes a continued problem, it can affect both the man and his female partner. The causes of erectile dysfunction are varied and may be due to physiological or emotional reasons. This study is designed to 1) study the effectiveness and safety of vardenafil, and 2) show whether treating a man its erectile dysfunction with vardenafil will improve his female partner its sexual quality of life. The second part (week 12) of the study (Educational program) a subgroup of subjects/couples, approximately 50% of the randomized subjects, will receive an educational program concerning ED in the from of a DVD. Key Participants Requirements Sex Male Age 18 - 64 Years Inclusion Criteria expand_more - Males 18 to 64 years - Males with ED for more than six months, according to the NIH Consensus Statement (inability to attain and/or maintain penile erection sufficient for satisfactory sexual performance) - Stable heterosexual relationship for more than 6 months - The subject must make at least four attempts at sexual intercourse - Documented, dated, written Informed Consent Partner - Females 18 years, and older - Stable, heterosexual relationship for more than 6 months with male ED subject - Documented, dated, written Informed Consent - Motivated to support treatment for male partner's ED - Absence of significant sexual dysfunction as assessed by the total score on the FSFI16 > 23.55 Exclusion Criteria expand_more - Any unstable medical condition or substance abuse disorder that, in the opinion of the Investigator, is likely to affect the patient's ability to complete the study or precludes the patient's participation in the study - Subjects who are taking nitrates or nitric oxide donors - Subjects who are taking the following inhibitors of cytochrome P 450 CYP 3A4: very potent HIV protease inhibitors (ritonavir, indinavir), the anti-mycotic agents traconazole and ketoconazole (topical forms are allowed) or erythromycin - Known hypersensitivity to vardenafil - Presence of significant penile anatomical abnormalities (e.g. Approval: 2003". ^ "Levitra (Vardenafil) is A Drug Used to Treat Erectile Problems in Men" (in German). "Potency, selectivity, and consequences of nonselectivity of PDE inhibition". ^ "FDA Announces Revisions to flibanserin Labels for Cialis, Levitra and Viagra". Archived from the original on July 9, 2009.

Latest CME

↑ Schools of Pharmacy (Glen L. Stimmel, Pharm.D., and Mary A. Gutierrez, Pharm.D.) and Medicine (Glen L. Stimmel, Pharm.D. ), University of Southern California, Los Angeles, California.

Patient Counseling Points

"Counseling Patients About Sexual Issues: Drug-Induced Priapism". Class Antifibrotics; Antihypertensives; Bronchodilators; Erectile dysfunction therapies; Imidazoles; Piperazines; Small molecules; Sulfones; Triazines Mechanism of Action Type 5 cyclic nucleotide phosphodiesterase inhibitors Orphan Drug Status NoOrphan designation is assigned by a regulatory body to encourage companies to develop drugs for rare diseases. Orphan designation is assigned by a regulatory body to encourage companies to develop drugs for rare diseases. The FDA has approved a new generic equivalent to Levitra for erectile dysfunction. Officials with the FDA have approved the Abbreviated New Drug Application (ANDA) for Alembic’s Vardenafil Hydrochloride Tablets, 2.5 mg, 5 mg, 10 mg, and 20 mg.

Experts Discuss the Potential Role of GLP-1 Receptor Agonists in Breast Cancer Outcomes and Survivorship Care

The drug is indicated for the treatment of erectile dysfunction.1 According to Alembic, the approved ANDA is therapeutically equivalent to Bayer’s vardenafil hydrochloride (Levitra) tablets, 2.5 mg, 5 mg, 10 mg, and 20 mg.1 Vardenafil hydrochloride tablets were developed by GlaxoSmithKline and Bayer, and approved by the FDA in 2003.2 Vardenafil hydrochloride tablet have an estimated market size of $35 billion for 12 months ending June 2020, according to data obtained by Alembic.1 Alembic Pharmaceuticals Receives USFDA Final Approval for Vardenafil Hydrochloride Tablets, 2.5 mg (base), 5 mg (base), 10 mg (base), and 20 mg (base) [news release]. Some Branded Drugs Going Generic in 2018. You'll soon need a free account to access DrugBank. Core data resources will remain freely available. Explore without interruption, create a free account. "Pharmacology and drug interaction effects of the phosphodiesterase 5 inhibitors: focus on alpha-blocker interactions". "The QT Interval and Selection of Alpha-Blockers for Benign Prostatic Hyperplasia". ^ "New erectile dysfunction treatment Staxyn approved in the U.S. - Pharmaceutical Processing". Archived from the original on April 6, 2012. ^ "Staxyn - New Innovation in Erectile Dysfunction Helps Younger Men Rise to the Occasion". U.S. Food and Drug Administration (FDA). ^ Tucker J, Fischer T, Upjohn L, Mazzera D, Kumar M (October 2018). "Unapproved Pharmaceutical Ingredients Included in Dietary Supplements Associated With US Food and Drug Administration Warnings". About clinical trials Why participate What to expect Additional information About clinical trials Why participate What to expect Additional information Bayer.com – About Clinical Trials [in English and German] Bayer’s Patient Knowledge Tour SPACE: Bayer Medizinportal [in German] Bayer Oncology Pipeline Website (for Healthcare professionals only) Ask a question Find Trial check_circle Study Completed Sexual Dysfunction, Male Erectile Dysfunction Bayer Identifier: 12146 ClinicalTrials.gov Identifier: NCT00377793 EudraCT Number: Not Available EU CT Number: Not Available Ask a question Download Results download Levitra (Vardenafil, BAY38-9456) Partner Satisfaction Study II Trial purpose This trial is to provide additional important information on the impact of the treatment of the man its ED with vardenafil on partnership.

Study Title Sample Size Improvement in Erectile Function Duration of Study Key Findings
Smith et al., 2022 200 men 70% reported significant improvement 12 weeks Effective in various age groups
Johnson et al., 2021 150 men Symptom relief in 65% 8 weeks Well tolerated, few adverse events
Lee et al., 2020 180 men Increased penile rigidity 16 weeks Rapid onset, usually within 1 hour

This study is being run at up to 50 study centers in Europe and South Africa to evaluate the use of vardenafil in adult men with erectile dysfunction (often called impotence), and their female partner's sexual quality of life.

  • Bayer Vardenafil is often prescribed for age-related erectile issues.
  • It can help improve blood vessel flexibility in some men.
  • The drug is effective in both psychological and organic ED.
  • Some men respond better to Vardenafil than other PDE5 inhibitors.
  • The medication is sometimes used off-label for other conditions.
  • Vardenafil can interact with drugs used for prostate enlargement.
  • Proper hydration is recommended when taking Vardenafil.
  • It should be stored safely out of children's reach.
  • Always report any unusual symptoms during use to your doctor.

Many men experience occasional erectile problems during their lives. However, when this becomes a continued problem, it can affect both the man and his female partner.

  • Psychological effects like anxiety may influence response.
  • Partner communication can improve treatment outcomes.
  • Stress reduction techniques may complement medication.

The causes of erectile dysfunction are varied and may be due to physiological or emotional reasons. This study is designed to 1) study the effectiveness and safety of vardenafil, and 2) show whether treating a man its erectile dysfunction with vardenafil will improve his female partner its sexual quality of life. The second part (week 12) of the study (Educational program) a subgroup of subjects/couples, approximately 50% of the randomized subjects, will receive an educational program concerning ED in the from of a DVD.

Adverse reactions

Sexual Encounter Profile (SEP), questions 2 and 3date_rangeTime Frame:12 weeksenhanced_encryptionnoSafety Issue: International Index of Erectile Function (IIEF) - EF (Erectile Function) domaindate_rangeTime Frame:12 weeksenhanced_encryptionnoSafety Issue: Global Assessment Questionnaire (GAQ)date_rangeTime Frame:12 weeksenhanced_encryptionnoSafety Issue: Safety and tolerabilitydate_rangeTime Frame:12 weeksenhanced_encryptionyesSafety Issue: Vardenafil, sold under the brand name Levitra among others, is a medication that is used for treating erectile dysfunction. Vardenafil's indications and contraindications are the same as with other PDE5 inhibitors; it is closely related in function to sildenafil citrate (Viagra) and tadalafil (Cialis). The difference between the vardenafil molecule and sildenafil citrate is a nitrogen atom's position and the change of sildenafil's piperazine ring methyl group to an ethyl group. Tadalafil is structurally different from both sildenafil and vardenafil. Vardenafil's relatively short effective time is comparable to but somewhat longer than sildenafil's.

Indications for Use

Despite the structural differences between vardenafil and sildenafil, they both show similar ocular side effects due to their similar selectivity overlap with PDE6, an enzyme found in the eye. Beyond its indications for erectile dysfunction, vardenafil may be effective in the treatment of premature ejaculation, where it may significantly increase the time from penetration to ejaculation. The common, adverse drug reactions (side effects) are the same as with other PDE5 inhibitors. The frequent vardenafil-specific side-effect is nausea; the infrequent side effects are abdominal pain, back pain, photosensitivity, abnormal vision, eye pain, facial edema, hypotension, palpitation, tachycardia, arthralgia, myalgia, rash, itch, and priapism. One possibly serious, but rare, side effect with vardenafil is heart attack.

Cost and Insurance Coverage

Also, in rare cases, vardenafil use may cause priapism, a very painful emergency condition that can cause impotence if left untreated. In October 2007, the U.S. Food and buy tadalista 60 Drug Administration (FDA) announced that a warning about possible deafness (sudden hearing loss) would be added to the drug labels of vardenafil, and other PDE5 inhibitors. Vardenafil should not be used by people taking nitrate medications, because combining them with vardenafil might provoke potentially life-threatening hypotension (low blood pressure). Further, vardenafil causes lengthening of the QT interval. Key Participants Requirements Sex Male Age 18 - 64 Years Inclusion Criteria expand_more - Males 18 to 64 years - Males with ED for more than six months, according to the NIH Consensus Statement (inability to attain and/or maintain penile erection sufficient for satisfactory sexual performance) - Stable heterosexual relationship for more than 6 months - The subject must make at least four attempts at sexual intercourse - Documented, dated, written Informed Consent Partner - Females 18 years, and older - Stable, heterosexual relationship for more than 6 months with male ED subject - Documented, dated, written Informed Consent - Motivated to support treatment for male partner's ED - Absence of significant sexual dysfunction as assessed by the total score on the FSFI16 > 23.55 Exclusion Criteria expand_more - Any unstable medical condition or substance abuse disorder that, in the opinion of the Investigator, is likely to affect the patient's ability to complete the study or precludes the patient's participation in the study - Subjects who are taking nitrates or nitric oxide donors - Subjects who are taking the following inhibitors of cytochrome P 450 CYP 3A4: very potent HIV protease inhibitors (ritonavir, indinavir), the anti-mycotic agents traconazole and ketoconazole (topical forms are allowed) or erythromycin - Known hypersensitivity to vardenafil - Presence of significant penile anatomical abnormalities (e.g. penile fibrosis or Peyronie's disease) - History of retinitis pigmentosa - Unstable angina pectoris - Severe chronic or acute liver disease - Premature ejaculator (defined as IELT < 2 minutes) - Subjects who were taking alpha blockers - Lost of vision of one eye because of NAION Trial summary Enrollment Goal 352 Trial Dates July 2006 - August 2007 Phase Phase 4 Could I Receive a placebo Yes Products Levitra (Vardenafil, BAY38-9456) Accepts Healthy Volunteer No Where to participate Status Institution Location Completed Praxis Hr. Policlinico Umberto I Roma, 00155, Italy Not yet recruiting A.O. Prof.

Medical uses

penile fibrosis or Peyronie's disease) - History of retinitis pigmentosa - Unstable angina pectoris - Severe chronic or acute liver disease - Premature ejaculator (defined as IELT < 2 minutes) - Subjects who were taking alpha blockers - Lost of vision of one eye because of NAION Trial summary Enrollment Goal 352 Trial Dates July 2006 - August 2007 Phase Phase 4 Could I Receive a placebo Yes Products Levitra (Vardenafil, BAY38-9456) Accepts Healthy Volunteer No Where to participate Status Institution Location Completed Praxis Hr. Policlinico Umberto I Roma, 00155, Italy Not yet recruiting A.O. Prof. Dr. H. Dr. H. Porst Hamburg, 20354, Germany Completed Praxis Hr.