Levitra 100mg: Dosage Instructions and Administration Guide

LEVITRA (5 mg, 10 mg, and 20 mg)

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The doses of LEVITRA in these studies were 5 mg, 10 mg, and 20 mg. Two of these trials were conducted in the general ED population and two in special ED populations (one in patients with diabetes mellitus and one in post-prostatectomy patients). LEVITRA was dosed without regard to meals on an as needed basis in men with erectile dysfunction (ED), many of whom had multiple other medical conditions. The primary endpoints were assessed at 3 months.Primary efficacy assessment in all four major trials was by means of the Erectile Function (EF) Domain score of the validated International Index of Erectile Function (IIEF) Questionnaire and two questions from the Sexual Encounter Profile (SEP) dealing with the ability to achieve vaginal penetration (SEP2), and the ability to maintain an erection long enough for successful intercourse (SEP3).In all four fixed-dose efficacy trials, LEVITRA showed clinically meaningful and statistically significant improvement in the EF Domain, SEP2, and SEP3 scores compared to placebo. The mean baseline EF Domain score in these trials was 11.8 (scores range from 0-30 where lower scores represent more severe disease). was effective in all

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age categories (<45, 45

Question	Answer
How long does it last?	Up to 4-5 hours, depending on individual factors
Can I take it with other medications?	Consult your doctor; some drugs interact adversely
Is it safe for everyone?	Not for individuals with certain health issues or on nitrates
What should I do if I experience side effects?	Contact your physician immediately

to <65, and ≥65 years) and was also

• Levitra 100 mg is a potent medication for erectile dysfunction.
• It is the highest prescribed dose of Levitra.
• Usually taken 30-60 minutes before intimacy.
• Levitra 100 mg works for up to 4-5 hours.
• It enhances blood flow to the penis.
• Consult a doctor before using this dose.
• Not suitable for use with nitrates.
• Side effects may include headache or flushing.
• Overdose can cause serious health issues.
• It's important to follow prescribed dosage.
• Levitra 100 mg isn't recommended for women.
• Store in a cool, dry place away from children.

effective regardless of race

• Levitra 100 mg is effective for many men with ED.
• It is not a hormone-based treatment.
• The medication can be used with or without food.
• Side effects may resolve within a few hours.
• Seek emergency care for severe adverse reactions.
• Levitra 100 mg is not for recreational use.
• Proper hydration can improve medication effectiveness.
• Men should avoid heavy physical activity after dosing.
• Use caution if you're prone to cardiovascular issues.
• Discuss all health conditions with your doctor beforehand.
• Levitra 100 mg does not protect against sexually transmitted infections.
• It is sometimes used off-label for other conditions.

(White, Black, Other).Trials in

Levitra (Vardenafil)

The clinical impact of these QTc changes is unknown (see PRECAUTIONS). In a separate postmarketing study of 44 healthy volunteers, single doses of 10 mg LEVITRA resulted in a placebo-subtracted mean change from baseline of QTcF (Fridericia correction) of 5 msec (90% CI: 2,8). The clinical impact of these QT changes is unknown (see PRECAUTIONS, Congenital or Acquired QT Prolongation). In two independent trials that assessed 10 mg (n=41) and 20 mg (n=39) vardenafil, respectively, vardenafil did not alter the total treadmill exercise time compared to placebo. The patient population included men aged 40-80 years with stable exercise-induced angina documented by at least one of the following: 1) prior history of MI, CABG, PTCA, or stenting (not within 6 months); 2) positive coronary angiogram showing at least 60% narrowing of the diameter of at least one major coronary artery; or 3) a positive stress echocardiogram or stress nuclear perfusion study.

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Results of these studies showed that LEVITRA did not alter the total treadmill exercise time compared to placebo (10 mg LEVITRA vs. placebo: 433±109 and 426±105 seconds, respectively; 20 mg LEVITRA vs. placebo: 414±114 and 411±124 seconds, respectively). The total time to 1 mm or greater ST-segment depression was similar to placebo in both the 10 mg and the 20 mg LEVITRA groups (10 mg LEVITRA vs. placebo: 380±108 and 334±108 seconds; 20 mg LEVITRA vs. a General Erectile Dysfunction

Contraindications	Precautions	Interactions
Nitrate use	Liver impairment	Alcohol consumption
Heart condition	Recent stroke or heart attack	Certain antibiotics (e.g., clarithromycin)
Allergy to PDE5 inhibitors	Low blood pressure	Use with other ED meds

Population: In the major

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placebo: 380±108 and 334±108 seconds; 20 mg LEVITRA vs. placebo: 364±101 and 366±105 seconds, respectively).Effects on Vision:Single oral doses of phosphodiesterase inhibitors have demonstrated transient dose-related impairment of color discrimination (blue/green) using the Farnsworth-Munsell 100-hue test and reductions in electroretinogram (ERG) b-wave amplitudes, with peak effects near the time of peak plasma levels. These findings are consistent with the inhibition of PDE6 in rods and cones, which is involved in phototransduction in the retina. The findings were most evident one hour after administration, diminishing but still present 6 hours after administration. In a single dose study in 25 normal males, LEVITRA 40 mg, twice the maximum daily recommended dose, did not alter visual acuity, intraocular pressure, fundoscopic and slit lamp findings.In another double-blind, placebo controlled clinical trial, at least 15 doses of 20 mg vardenafil were administered over 8 weeks versus placebo to 52 males.

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Thirty-two (32) males (62%) of the patients completed the trial. Retinal function was measured by ERG and FM-100 test 2, 6 and 24 hours after dosing. The trial was designed to detect changes in retinal function that might occur in more than 10% of patients. Vardenafil did not produce clinically significant ERG or FM-100 effects in healthy men compared to placebo. Two patients on vardenafil in the trial reported episodes of transient cyanopsia (objects appear blue). North American fixed-dose trial,

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Following a single oral dose of 20 mg vardenafil in healthy volunteers, a mean of 0.00018% of the administered dose was obtained in semen 1.5 hours after dosing. Vardenafil is metabolized predominantly by the hepatic enzyme CYP3A4, with contribution from the CYP3A5 and CYP2C isoforms. Therefore, M1 accounts for approximately 7% of total pharmacologic activity. The total body clearance of vardenafil is 56 L/h, and the terminal half-life of vardenafil and its primary metabolite (M1) is approximately 4-5 hours. After oral administration, vardenafil is excreted as metabolites predominantly in the feces (approximately 91-95% of administered oral dose) and to a lesser extent in the urine (approximately 2-6% of administered oral dose).

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Pediatrics: Vardenafil trials were not conducted in the pediatric population. Geriatrics: In a healthy volunteer study of elderly males (≥65 years) and younger males (18–45 years), mean Cmax and AUC were 34% and 52% higher, respectively, in the elderly males (see PRECAUTIONS, Geriatric Use and DOSAGE AND ADMINISTRATION). Consequently, a lower starting dose of LEVITRA (5 mg) in patients ≥65 years of age should be considered. Renal Insufficiency: In volunteers with mild renal impairment (CLcr = 50-80 ml/min), the pharmacokinetics of vardenafil were similar to those observed in a control group with normal renal function. Vardenafil pharmacokinetics have not cheapest levitra generic been evaluated in patients requiring renal dialysis (see PRECAUTIONS, Renal Insufficiency, and DOSAGE AND ADMINISTRATION). 762 patients (mean age

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Hepatic Insufficiency: In volunteers with mild hepatic impairment (Child-Pugh A), the Cmax and AUC following a 10 mg vardenafil dose were increased by 22% and 17%, respectively, compared to healthy control subjects. Vardenafil has not been evaluated in patients with severe (Child-Pugh C) hepatic impairment. In a clinical pharmacology study of patients with erectile dysfunction, single doses of vardenafil 20 mg caused a mean maximum decrease in supine blood pressure of 7 mmHg systolic and 8 mmHg diastolic (compared to placebo), accompanied by a mean maximum increase of heart rate of 4 beats per minute. Vardenafil may add to the blood pressure lowering effects of antihypertensive agents (see PRECAUTIONS, Drug Interactions). A study was conducted in which the blood pressure and heart rate response to 0.4 mg nitroglycerin (NTG) sublingually was evaluated in 18 healthy subjects following pretreatment with LEVITRA 20 mg at various times before NTG administration.

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Figure 2: Placebo-subtracted point estimates (with 90% CI) of mean maximal blood pressure and heart rate effects of pre-dosing with LEVITRA 20 mg at 24, 8, 4, and 1 hour before 0.4 mg NTG sublingually. Because the disease state of patients requiring nitrate therapy is anticipated to increase the likelihood of hypotension, the use of vardenafil by patients on nitrate therapy or on nitric oxide donors is contraindicated (see CONTRAINDICATIONS). The effect of 10 mg and 80 mg vardenafil on QT interval was evaluated in a single-dose, double-blind, randomized, placebo- and active-controlled (moxifloxacin 400 mg) crossover study in 59 healthy males (81% White, 12% Black, 7% Hispanic) aged 45-60 years. In this study, the mean increase in heart rate associated with a 10 mg dose of LEVITRA compared to placebo was 5 beats/minute and with an 80 mg dose of LEVITRA the mean increase was 6 beats/minute. Therapeutic and supratherapeutic doses of vardenafil and the active control moxifloxacin produced similar increases in QTc interval. 57, range 20-83 years; 79% White, 13% Black, 4% Hispanic, 2% Asian

More about Levitra (vardenafil)

placebo: 364±101 and 366±105 seconds, respectively). Single oral doses of phosphodiesterase inhibitors have demonstrated transient dose-related impairment of color discrimination (blue/green) using the Farnsworth-Munsell 100-hue test and reductions in electroretinogram (ERG) b-wave amplitudes, with peak effects near the time of peak plasma levels. In a single dose study in 25 normal males, LEVITRA 40 mg, twice the maximum daily recommended dose, did not alter visual acuity, intraocular pressure, fundoscopic and slit lamp findings. In another double-blind, placebo controlled clinical trial, at least 15 doses of 20 mg vardenafil were administered over 8 weeks versus placebo to 52 males. CLINICAL STUDIES LEVITRA was evaluated in four major double-blind, randomized, placebo-controlled, fixed-dose, parallel design, multicenter trials in 2431 men aged 20-83 (mean age 57 years; 78% White, 7% Black, 2% Asian, 3% Hispanic and 10% Other/Unknown). and 2% Other) were evaluated.

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Penile erection is a hemodynamic process initiated by the relaxation of smooth muscle in the corpus cavernosum and its associated arterioles. Because sexual stimulation is required to initiate the local release of nitric oxide, the inhibition of PDE5 has no effect in the absence of sexual stimulation. In vitro studies have shown that vardenafil is a selective inhibitor of PDE5. The inhibitory effect of vardenafil is more selective on PDE5 than for other known phosphodiesterases (>15-fold relative to PDE6, >130-fold relative to PDE1, >300-fold relative to PDE11, and >1,000-fold relative to PDE2, 3, 4, 7, 8, 9, and 10). The pharmacokinetics of vardenafil are approximately dose proportional over the recommended dose range.

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Mean vardenafil plasma concentrations measured after the administration of a single oral dose of 20 mg to healthy male volunteers are depicted in Figure 1. Figure 1: Plasma Vardenafil Concentration (Mean ± SD) Curve for a Single 20 mg LEVITRA Dose Vardenafil is rapidly absorbed with absolute bioavailability of approximately 15%. Two food-effect studies were conducted which showed that high-fat meals caused a reduction in Cmax by 18%-50%. The mean steady-state volume of distribution (Vss) for vardenafil is 208 L, indicating extensive tissue distribution. This protein binding is reversible and independent of total drug concentrations.