Male Dysfunction Treatment Vardenafil Levitra Dosage Cas 224785-91-5
What is Vardenafil?
LEVITRA (vardenafil hydrochloride) is administered orally for the treatment of erectile dysfunction. This monohydrochloride salt of vardenafil is a selective inhibitor of cyclic guanosine monophosphate (cGMP)-specific phosphodiesterase type 5.
Levitra is one of the most effective ED medications offered in the market. The active ingredient of the medicine is Vardenafil and particularly the latter is in charge of increasing the blood flow to a male penis by enlarging the blood arteries. Erectile dysfunction is the inability to achieve an erection and maintain it for having a successful sexual intercourse. Today there is a number of ED treatments to deal with this problem, hence men don’t have to give in the illness or abandon their sexual life.
Levitra comes in several dosages – 10mg, 20mg, 40mg and 60mg. The recommended starting dose is 10mg. The active ingredient of Levitra Vardenafil is much stronger than the active citrate Sildenafil of Viagra. Its 10mg is equal to Viagra’s 50mg. That’s the reason Levitra is much more effective as compared with all other PDE5 inhibitor drugs.
LEVITRA may add to the blood pressure lowering effects of antihypertensive agents. 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. The maximum decrease in blood pressure occurred between 1 and 4 hours after dosing. Following multiple dosing for 31 days, similar blood pressure responses were observed on Day 31 as on Day 1.
Potent CYP3A4 inhibitors
Ketoconazole (200 mg once daily) produced a 10-fold increase in vardenafil AUC and a 4-fold increase in maximum concentration (Cmax) when co-administered with LEVITRA (5 mg) in healthy volunteers. A 5-mg LEVITRA dose should not be exceeded in a 24-hour period 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 LEVITRA should not be exceeded in a 24-hour period when used in combination with ketoconazole 400 mg daily.
Physicians should consider the cardiovascular status of their patients, since there is a degree of cardiac risk associated with sexual activity. Therefore, treatment for erectile dysfunction, including LEVITRA, should not be used in men for whom sexual activity is not recommended because of their underlying cardiovascular status.
Effects On The Eye
Physicians should advise patients to stop use of all phosphodiesterase type 5 (PDE5) inhibitors, including LEVITRA, and seek medical attention in the event of sudden loss of vision in one or both eyes. Such an event may be a sign of nonarteritic anterior ischemic optic neuropathy (NAION), a rare condition and a cause of decreased vision, including permanent loss of vision.
General Dose Information
For most patients, the recommended starting dose of LEVITRA is 10 mg, taken orally, as needed, approximately 60 minutes before sexual activity. The dose may be increased to a maximum recommended dose of 20 mg or decreased to 5 mg based on efficacy and side effects. The maximum recommended dosing frequency is once per day. Sexual stimulation is required for a response to treatment.
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Discuss with patients the appropriate use of LEVITRA and its anticipated benefits. It should be explained that sexual stimulation is required for an erection to occur after taking LEVITRA.
LEVITRA should be taken approximately 60 minutes before sexual activity. Patients should be counseled regarding the dosing of LEVITRA especially regarding the maximum daily dose. Patients should be advised to contact their healthcare provider for dose modification if they are not satisfied with the quality of their sexual performance with LEVITRA or in the case of an unwanted effect.