Characteristic | Description |
---|---|
Active Ingredient | Vardenafil |
Available Dosages | 10mg, 20mg |
Formulation | Oral tablets |
Shelf Life | 2 years |
Learn More About Levitra Extra Dosage |
Pharmacokinetics of Vardenafil 20mg
Vardenafil 20mg, a PDE5 inhibitor, is rapidly absorbed. Oral administration leads to peak plasma concentrations within one hour. The presence of a high-fat meal reduces absorption rate but not overall efficacy. The drug’s bioavailability is approximately 15%. It exhibits a plasma protein binding rate of about 95%, which is reversible. The half-life of vardenafil is approximately 4 to 5 hours, indicating a moderate duration of action. Metabolism occurs primarily via the CYP3A4 enzyme system, with additional minor contributions from CYP2C9.
Excretion of vardenafil and its metabolites happens mainly via feces (91-95%), with a small percentage (2-6%) eliminated in urine. Such pharmacokinetic properties ensure its suitability for episodic treatment of erectile dysfunction, given its quick onset and controlled duration of action.
Mechanism of Action: How Levitra Extra Dosage Works
Levitra Extra Dosage functions by inhibiting phosphodiesterase type 5 (PDE5), an enzyme found in the corpus cavernosum. This inhibition prevents the degradation of cyclic guanosine monophosphate (cGMP). Elevated levels of cGMP result in smooth muscle relaxation and enhanced blood flow to the penile tissues, facilitating erection during sexual arousal. This mechanism requires nitric oxide presence, which is released during sexual stimulation, emphasizing that Levitra Extra Dosage is effective only when the patient is sexually aroused.
The selective action of vardenafil on PDE5 ensures minimized effects on other phosphodiesterase enzymes, reducing the risk of systemic side effects compared to less selective PDE inhibitors.
Indications for Levitra Extra Dosage Use
Levitra Extra Dosage is indicated for the management of erectile dysfunction in adult males. It is suitable for patients who require enhanced dosage due to insufficient response to lower dosages or specific medical conditions impacting erectile function. It is not an aphrodisiac and requires sexual stimulation to work effectively.
Levitra Extra Dosage may also be considered in certain cases of pulmonary arterial hypertension, although sildenafil is more commonly prescribed for this condition. Consultation with a healthcare provider is critical to determine the appropriateness of this medication for individual cases.
Levitra Extra Dosage Storage Guidelines
Store Levitra Extra Dosage in a cool, dry place away from direct sunlight. Optimal storage temperature ranges between 15°C to 30°C. Keep the medication in its original packaging until use to protect it from moisture. Ensure it is inaccessible to children and pets. Do not use beyond the expiration date indicated on the packaging.
Improper storage conditions can affect the drug’s efficacy, so adherence to storage instructions is crucial.
Potential Side Effects of Vardenafil 20mg
Common side effects of vardenafil 20mg include headache, flushing, nasal congestion, and dizziness. These effects are generally mild and transient. Some patients may experience gastrointestinal disturbances such as dyspepsia. Visual disturbances are rare but have been reported.
Serious side effects, although uncommon, include priapism, sudden hearing loss, and myocardial infarction. Immediate medical attention is required in such cases. Patients with cardiovascular disease should exercise caution and discuss potential risks with their healthcare provider before commencing treatment.
Purchasing Levitra Extra Dosage Online
Levitra Extra Dosage can be purchased from licensed online pharmacies. Verify the pharmacy’s credentials before purchase to ensure authenticity and safety of the medication. Many online platforms offer discreet delivery services.
Consultation with a healthcare professional prior to purchase is advised, especially for those with underlying health conditions or those taking concurrent medications.
Drug Interaction | Effect |
---|---|
Nitrates | Severe hypotension risk |
Alpha-blockers | Increased blood pressure lowering |
CYP3A4 inhibitors | Increased plasma levels of vardenafil |
Levitra Extra Dosage presents a reliable option for managing erectile dysfunction, with a well-defined pharmacokinetic profile and mechanism of action. While side effects exist, they are usually manageable. Storage conditions play a crucial role in maintaining drug efficacy. Online availability offers convenience, but verification of sources is crucial. Always prioritize safety by consulting healthcare professionals before initiating treatment.