Clinical Studies on Vardenafil 20mg Efficacy
Prolonged erection greater than 4 hours and priapism (painful erections greater than 6 hours) have been reported during treatment with phosphodiesterase-5 (PDE 5) inhibitors.
Key Participants Requirements
Caution should be exercised if used in patients with congenital QT syndrome, or using other QT prolonging drugs. The plasma clearance of phosphodiesterase-5 (PDE5) inhibitors may be decreased in patients with severe renal impairment, resulting in drug accumulation. Therapy with these agents should be avoided in patients with severe renal disease or on renal dialysis. Dose adjustments might be needed based on individual renal assessment and tolerability if used in these patients. Alcohol consumption may intensify the pressure-lowering effects of mild vasodilators, such as phosphodiesterase 5 (PDE5) inhibitors.
Does sildenafil interact with other medicines (drug interactions)?
Therefore, patients that consume alcohol should be warned to limit alcohol intake while receiving these agents. The safety of sildenafil in patients with bleeding disorders or active peptic ulceration is unknown. In clinical studies, the incidence of bleeding (i.e., epistaxis) was increased in patients with pulmonary arterial hypertension secondary to connective tissue disease and in patients on concomitant therapy with an oral vitamin K antagonist. There have been postmarketing reports of bleeding events in patients treated with sildenafil for erectile dysfunction. Applies to: Bleeding Associated with Coagulation Defect The safety of sildenafil in patients with bleeding disorders or active peptic ulceration is unknown. Priapism may result in penile tissue damage and permanent loss of potency if not treated promptly.
| Product | Dosage | Quantity + Bonus | Price | |
|---|---|---|---|---|
| Viagra Soft Tabs | 100mg | 180 + 10 Pills | 314.95€ 299.95€ | |
| Viagra Original | 100mg | 14 + 2 Pills | 89.03€ 84.79€ | |
| Viagra Generic | 150mg | 120 + 8 Pills | 177.58€ 169.12€ | |
| Viagra Generic | 50mg | 270 + 8 Pills | 198.48€ 189.03€ | |
| Viagra Generic | 150mg | 360 + 10 Pills | 423.48€ 403.31€ | |
| Viagra Generic | 150mg | 30 + 2 Pills | 72.32€ 68.88€ | |
| Viagra Generic | 25mg | 360 + 10 Pills | 213.68€ 203.50€ | |
| Viagra Professional | 100mg | 10 Pills | 44.09€ 41.99€ | |
| Viagra Generic | 100mg | 90 + 6 Pills | 129.02€ 122.88€ | |
| Viagra Professional | 100mg | 120 + 4 Pills | 262.83€ 250.31€ | |
| Viagra Soft Tabs | 100mg | 30 + 4 Pills | 83.06€ 79.10€ | |
| Viagra Professional | 100mg | 360 + 6 Pills | 527.09€ 501.99€ | |
| Viagra Generic | 200mg | 10 Pills | 40.96€ 39.01€ | |
| Viagra Generic | 100mg | 360 + 10 Pills | 330.21€ 314.49€ |
These agents should be used cautiously in patients with conditions that may predispose them to priapism such as sickle cell anemia, multiple myeloma, or leukemia, and those with anatomical deformation of the penis (such as angulation, cavernosal fibrosis, or Peyronie's disease).
Patient characteristics
Let it dissolve on your tongue without crushing it. There are no known interactions between vardenafil and alcohol. In particular, make sure that you discuss if you are using any of the following before taking vardenafil. This may not be a complete list of medicines that can interact with vardenafil. If you or someone else has taken too much vardenafil, get medical help right away, call 911, or contact a Poison Control center at 800-222-1222.
Sustained efficacy and tolerability of vardenafil (Levitra®), a highly potent, selective phosphodiesterase-5 inhibitor, in men with erectile dysfunction: results of a randomized, double-blind, 26-week placebo-controlled pivotal trial
Take it as your healthcare provider recommends, which is usually about one hour before planned sexual activity. This report displays the potential drug interactions for the following 2 drugs: Applies to: Viagra (sildenafil) and Levitra (vardenafil) Using sildenafil together with vardenafil may cause blood pressure to fall excessively. The risk of other side effects such as dizziness, lightheadedness, fainting, headache, flushing, heart palpitations, and priapism (prolonged and painful erection unrelated to sexual activity) may also increase. Talk to your doctor if you have any questions or concerns. Your doctor may be able to prescribe alternatives that do not interact.
What is the most effective ED drug?
It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medications without first talking to your doctor. Therapeutic duplication is the use of more than one medicine from the same drug category or therapeutic class to treat the same condition. This can be intentional in cases where drugs with similar actions are used together for demonstrated therapeutic benefit. It can also be unintentional in cases where a patient has been treated by more than one doctor, or had prescriptions filled at more than one pharmacy, and can have potentially adverse consequences. If an erection persists longer than 4 hours, the patient should seek immediate medical assistance.
Trial summary
Keep vardenafil out of the reach of children. Do not chew, cut, or crush vardenafil orally disintegrating tablets. Vardenafil does not protect against sexually transmitted infections, including HIV. Vardenafil belongs to a group of medicines, known as phosphodiesterase-5 (PDE-5) inhibitors, which are used to treat erectile dysfunction or pulmonary arterial hypertension. This will help them determine if vardenafil is right for you.
How does Levitra help with these illnesses?
Phenylalanine is found in vardenafil oral tablets and vardenafil orally disintegrating tablets. This substance can be harmful to people with PKU. Tell your healthcare provider if you have PKU. They can suggest a different treatment option for you. Heart problems, such as heart rhythm problems, chest pain, or heart failure Heart attack, stroke, or heart surgery within the past six months High blood pressure that is still too high despite taking medicines for it Peyronie's disease, or a penis with an abnormal curve or shape An erection lasting longer than four hours A blood disorder, such as sickle cell anemia An inherited eye disease called retinitis pigmentosa Vision loss, or a problem with the nerve between your eyes and brain (optic nerve) Health conditions or factors that raise the risk of optic nerve problems, such as diabetes, high cholesterol, smoking, being older than 50, or having a “crowded disc,” which is something an eye doctor may see during an eye exam Pulmonary veno-occlusive disease, a condition where blood vessels in the lungs are blocked People who can become pregnant are not usually prescribed vardenafil.
How long does Sildenafil last?
It is not known if or how vardenafil could affect pregnancy or harm an unborn baby. People who can breastfeed are not usually prescribed vardenafil. It is not known if vardenafil passes into breast milk. Grapefruit or grapefruit juice can raise vardenafil levels in your body, which can increase the risk of side effects. Vardenafil orally disintegrating tablets should not be taken with water or liquids. Use of phosphodiesterase-5 (PDE5) inhibitors has been associated with sudden decrease or loss of hearing, which may be accompanied by tinnitus or dizziness. Patients with hearing problems should stop taking these agents and seek prompt medical care. Phosphodiesterase 5 (PDE-5) inhibitors are cleared predominantly by hepatic metabolism.
| Property | Description | Notes |
|---|---|---|
| Active Ingredient | Vardenafil | PDE5 inhibitor |
| Dosage Form | Tablet | 20mg strength |
| Mechanism of Action | Enhances blood flow to the penis | Inhibits PDE5 enzyme |
| Absorption Time | 30-60 minutes | Onset of action |
| Duration of Effect | up to 4-5 hours | Varies by individual |
The pharmacokinetic disposition of these agents has not been assessed in patients with severe hepatic impairment. No dosage modification is recommended for patients with mild to moderate hepatic impairment, however, therapy with these agents should not be administered to patients with severe hepatic impairment.
| Country | Status | Prescription Required | Notes |
|---|---|---|---|
| USA | Prescription-only | Yes | FDA approved for ED |
| UK | Prescription-only | Yes | NICE guidelines apply |
| Canada | Prescription required | Yes | Controlled substance |
| Australia | Prescription required | Yes | Schedule 4 medication |
| Germany | Prescribed by doctor | Yes | Regulated medical use |
In patients with mild hepatic impairment a lower dose of these agents should be used as initial therapy.
- Use Vardenafil 20mg responsibly to avoid developing dependency.
- Do not use recreational drugs with Vardenafil.
- Assistance from healthcare professionals enhances safe use.
Vardenafil is cleared predominantly by hepatic metabolism. The pharmacokinetic disposition of this agent has not been assessed in patients with severe hepatic impairment.
| Study | Sample Size | Success Rate | Average Time to Effect | Notes |
|---|---|---|---|---|
| Smith et al., 2022 | 150 | 78% | 30-60 minutes | Well tolerated |
| Johnson et al., 2021 | 200 | 82% | 45 minutes | No significant side effects |
| Lee et al., 2020 | 120 | 75% | 40 minutes | Effects last approximately 4 hours |
| Patel et al., 2019 | 180 | 80% | 35-50 minutes | Effective across age groups |
No dosage modification is recommended for patients with mild hepatic impairment, however, therapy with this agent should not be administered to patients with moderate to severe hepatic impairment. In patients with mild hepatic impairment a lower dose of the oral tablet might be used as initial therapy and the maximum dose should not exceed 10 mg.
- Vardenafil 20mg may interact with certain antibiotics, antifungals, or HIV meds.
- Always disclose current medications to your healthcare provider.
- Drug interactions can alter effectiveness or increase side effects.
Sildenafil for the treatment of erectile dysfunction (ED) should be used with caution and only if the benefit outweighs the risk in patients with a history of non-arteritic anterior ischemic optic neuropathy (NAION) or with retinitis pigmentosa. Use of sildenafil for the treatment of pulmonary arterial hypertension is not recommended in patients with retinitis pigmentosa.
- Vardenafil 20mg is not suitable for individuals taking alpha-blockers.
- Patients with heart conditions should consult their doctor before use.
- Precautions are necessary for those with liver or kidney issues.
Advise patients to seek immediate medical attention in the event of a sudden loss of vision in one or both eyes while taking sildenafil; patients taking sildenafil for ED should immediately stop treatment.
What Are Levitra & Viagra Used to Treat?
The recommended maximum number of medicines in the 'erectile dysfunction agents' category to be taken concurrently is usually one. Your list includes two medicines belonging to the 'erectile dysfunction agents' category: Note: In certain circumstances, the benefits of taking this combination of drugs may outweigh any risks. Always consult your healthcare provider before making changes to your medications or dosage. If you are receiving therapy with sildenafil you should viagra click and collect avoid the regular consumption of large amounts of grapefruits and grapefruit juice. Grapefruit can raise the levels of sildenafil in your body and delay the time it takes for the medication to work.
Can I use Levitra or Viagra with alcohol?
Do not increase or decrease the amount of grapefruit products in your diet without first talking to your doctor. You may want to limit your consumption of grapefruit and grapefruit juice during treatment with vardenafil. However, if you have been regularly consuming grapefruit or grapefruit juice with the medication, then it is advisable for you to talk with your doctor before changing the amounts of these products in your diet, as this may alter the effects of your medication. Contact your doctor if your condition changes or you experience increased side effects. Orange juice is not expected to interact.
sildenafil Cavernosal/Penile Tissue Abnormalities
The use of phosphodiesterase-5 (PDE5) inhibitors is not recommended in patients with preexisting cardiovascular disease for whom sexual activity is inadvisable due to the potential cardiac risk. Physicians should also consider the vasodilatory effect of these drugs and whether they may adversely affect patients with underlying cardio- and/or cerebrovascular conditions, in particular those who have suffered a myocardial infarction, stroke, or life-threatening arrhythmia within the last 6 months; those with resting hypotension (BP < 90/50) or hypertension (BP > 170/110); and those with unstable angina associated with cardiac failure or coronary artery disease. There are no controlled clinical data on the safety or efficacy in such patients. Many of these events occurred in patients with cardiovascular risk factors and during or shortly after sexual activity. Patients taking Class 1A or Class III antiarrhythmic medications or those with congenital QT prolongation, should avoid using this agent. Most patients who developed NAION during therapy with sildenafil had underlying anatomic or vascular risk factors, including low cup to disc ratio ("crowded disc").