Levitra 20mg is a PDE5 inhibitor oral tablet formulation supplied in a 50 tablet pack. Manufactured for consistent potency, stability, and controlled research applications.
Format50 Tablets
Concentration20mg
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Vardenafil, widely known by its pharmaceutical brand name Levitra, is a phosphodiesterase type 5 (PDE5) inhibitor with FDA approval for erectile dysfunction, joining Sildenafil and Tadalafil as the third major PDE5 inhibitor in CSD’s range. This formulation delivers 20mg per tablet in a 50 count format, the standard maximum recommended dose referenced in clinical prescribing guidelines for Vardenafil.
Vardenafil’s defining pharmacological characteristic is its receptor binding affinity for PDE5, which is documented as the most potent among the three major PDE5 inhibitors at a molecular level — though this greater in vitro potency does not necessarily translate to proportionally greater clinical effect, since each compound’s clinical dose was calibrated independently against its own potency profile. Vardenafil’s half-life of approximately 4–5 hours is comparable to Sildenafil’s, distinguishing both from Tadalafil’s substantially longer 17.5 hour half-life; meaning Vardenafil and Sildenafil are positioned for closer event based, on demand use timing relative to sexual activity, while Tadalafil’s extended window supports more flexible timing.
Vardenafil is also documented as more sensitive to interaction with strong CYP3A4 inhibitors than Sildenafil or Tadalafil, an important consideration in research examining drug interaction profiles across the PDE5 inhibitor class, and carries specific cardiac considerations including QT interval prolongation that differentiate its cardiovascular risk profile discussion from the other two compounds. This makes Vardenafil a relevant comparative reference point in PDE5 inhibitor research specifically examining receptor binding potency, half-life variability, and differential drug interaction and cardiac risk profiles within the same enzyme target class.
Every batch of CSD’s Vardenafil is third party lab tested for concentration accuracy and purity before being made available, with COA documentation available on request. CSD now stocks all three major PDE5 inhibitors: Sildenafil, Tadalafil, and Vardenafil; giving researchers the complete comparative PDE5 inhibitor class from a single verified Canadian supplier. All orders ship discreetly across Canada in plain, unmarked packaging with no identifying information on the exterior.
Vardenafil should not be combined with nitrate medications, as this combination can cause a dangerous and potentially fatal drop in blood pressure. It carries specific cardiac considerations including QT interval prolongation. Consult a healthcare provider before use, particularly if you have cardiovascular conditions, take other medications, or have a history of irregular heartbeat.
Store in a cool, dry place away from direct light and heat.
Vardenafil (brand name Levitra) is a potent PDE5 inhibitor developed by Bayer AG, considered the most potent PDE5 inhibitor on a milligram basis with significantly greater PDE5 selectivity over PDE6 than Sildenafil, producing fewer visual disturbance side effects. It is researched for erectile dysfunction, pulmonary arterial hypertension, cardiovascular function, and nitric oxide pathway research. Vardenafil produces faster onset than Sildenafil; typically 15–30 minutes versus 30–60 minutes with a comparable 4–5 hour duration of action, making it the preferred on demand PDE5 inhibitor for researchers prioritizing speed of onset.
Vardenafil, Sildenafil, and Tadalafil are all PDE5 inhibitors but differ in potency, onset, duration, and selectivity profile. Vardenafil is the most potent PDE5 inhibitor of the three on a milligram basis, active at lower doses than Sildenafil with faster onset of 15–30 minutes. Vardenafil and Sildenafil share a similar 4–6 hour duration significantly shorter than Tadalafil's 36 hour window. Vardenafil demonstrates greater selectivity for PDE5 over PDE6 than Sildenafil, producing fewer visual disturbance side effects. Tadalafil is preferred for daily dosing and cardiovascular research applications due to its extended half-life. Vardenafil is preferred for on demand research requiring the fastest reliable PDE5 inhibition onset.
20mg is the maximum approved pharmaceutical dose of Vardenafil, representing the highest clinically researched single dose and producing maximum PDE5 inhibition duration. The 50 tablet pack at 20mg provides 1000mg total. The largest total Vardenafil quantity available in a single product in CSD's catalogue. This pack size is particularly practical for researchers running longer Vardenafil protocols, researchers who split tablets to deliver 10mg doses (producing 100 administrations per pack), or researchers combining on demand erectile dysfunction research with cardiovascular blood pressure research applications requiring frequent administration.
Vardenafil is commonly researched alongside anabolic steroid protocols where androgenic compounds, particularly non aromatizing androgens such as Trenbolone and Masteron; can reduce nitric oxide production and impair erectile function. Daily low dose PDE5 inhibitor use is increasingly researched as a cardiovascular and sexual function support intervention in anabolic research contexts. Critical interaction considerations include organic nitrates. Vardenafil is absolutely contraindicated with nitrates due to severe hypotension risk. Alpha blocker medications and antihypertensive compounds may potentiate Vardenafil's blood pressure lowering effects and should be initiated at the lowest dose when combined.
Yes! This batch has been independently HPLC tested by an accredited third party laboratory confirming concentration accuracy at 20mg per tablet and compound identity as Vardenafil Hydrochloride. A certificate of analysis is available.
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