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Characteristic Details
Active Ingredient Tadalafil
Available Dosages 20 mg
Administration Route Oral
Prescription Required Yes
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Pharmacokinetics

The pharmacokinetics of Tadora, specifically its active component tadalafil 20 mg, are well-documented. Upon oral administration, tadalafil is rapidly absorbed, with peak plasma concentrations occurring within 2 hours. The bioavailability of tadalafil is not affected by food, allowing for flexible dosing. It binds extensively to plasma proteins, facilitating its wide distribution throughout the body.

The metabolism of tadalafil occurs primarily in the liver, mediated by the cytochrome P450 enzyme CYP3A4. This biotransformation results in the production of various metabolites, none of which contribute significantly to its pharmacological action. The elimination half-life of tadalafil is approximately 17.5 hours, enabling sustained therapeutic effects. Excretion is primarily via feces, with a smaller portion being excreted in urine.

Mechanism of Action

Tadora functions as a potent inhibitor of phosphodiesterase type 5 (PDE5), an enzyme responsible for the degradation of cyclic guanosine monophosphate (cGMP). During sexual arousal, the release of nitric oxide in the corpus cavernosum of the penis leads to an increase in cGMP levels, resulting in smooth muscle relaxation and inflow of blood.

By inhibiting PDE5, tadalafil enhances the effects of cGMP, leading to improved erectile function. It’s important to note that sexual stimulation is required for Tadora’s efficacy, as it does not act as an aphrodisiac.

Warnings & Precautions

Tadora usage warrants certain precautions. Patients with cardiovascular conditions should consult healthcare providers before starting treatment. Tadora may potentiate the hypotensive effects of nitrates, posing a significant risk of severe hypotension. Concomitant use is contraindicated.

Patients with renal or hepatic impairment should approach Tadora with caution, as altered pharmacokinetics may necessitate dose adjustments. Vision disturbances, though rare, necessitate immediate medical attention, as they could indicate serious ocular conditions.

Pregnancy and Breastfeeding

Tadora is contraindicated in women, including those who are pregnant or breastfeeding. Although studies in women are limited, the lack of indication for use in females renders its effects on pregnancy and lactation moot. Healthcare providers should offer guidance to patients seeking clarity.

Tadora Side Effects

Like all medications, Tadora can cause adverse reactions. Common side effects include headaches, flushing, dyspepsia, and back pain. These are generally mild and transient. Severe effects, such as priapism and sudden vision loss, are rare but require prompt intervention.

Is Non-Prescription Tadora Available?

Non-prescription Tadora is not available. Due to the potential for serious interactions and side effects, tadalafil 20 mg requires medical oversight. Patients should obtain a prescription from qualified healthcare professionals.

For additional details on Tadora, consult reputable sources like the National Center for Biotechnology Information.

Aspect Details
Efficacy Enhances erectile function
Onset Within 30-60 minutes
  • Tadora requires a prescription.
  • Seek medical advice before use.
  • Not suitable for women or children.

Data source:

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