| Characteristics | Details |
|---|---|
| Active Ingredient | Sildenafil Citrate |
| Available Dosages | 100 mg, 200 mg |
| Form | Tablet |
| Prescription | Required |
| Use Duration | 30 minutes to 4 hours before activity |
| Function | Erectile Dysfunction Treatment |
| Learn More about Viagra Professional | |
Chemical Structure of Sildenafil
Sildenafil, the active ingredient in Viagra Professional, falls under the class of PDE-5 inhibitors. Its chemical formula is C22H30N6O4S. This compound influences the physiological mechanism of erection. It blocks the degradation of cyclic GMP in the corpus cavernosum, which results in prolonged muscle relaxation.
Unique features of sildenafil’s molecular structure enable its interaction with the PDE-5 enzyme. These interactions augment blood flow, thus enhancing erectile function. Sildenafil’s specificity for PDE-5 over other phosphodiesterase enzymes reduces the risk of off-target effects. This selective binding is crucial for its clinical efficacy and safety profile.
The molecular geometry and lipophilicity of sildenafil facilitate rapid absorption in the bloodstream. Typically, peak plasma concentrations are observed within 30-120 minutes post administration. Its half-life spans approximately four hours, offering a therapeutic window suited for intended use.
Correct Use of Viagra Professional
Viagra Professional serves as a potent remedy for erectile dysfunction. It should be administered orally with water. Optimal results arise when taken 30 minutes to one hour prior to anticipated sexual activity. It is imperative to note the 100 mg or 200 mg dosages.
Ingesting the tablet with or without food remains acceptable. However, high-fat meals may delay its onset of action. Avoid excessive alcohol consumption, as it may impede the drug’s efficacy. Proper adherence to recommended dosages minimizes adverse reactions and maximizes therapeutic outcomes.
Users should avoid more than one dose in a 24-hour period. Consistent use beyond recommended levels increases the risk of side effects. A comprehensive understanding of personal health conditions is vital before integrating this medication into routine use.
Who Can and Cannot Take Viagra Professional
Viagra Professional is intended for adult men diagnosed with erectile dysfunction. Patients seeking treatment should consult a healthcare provider to evaluate suitability. A medical professional considers underlying health conditions and concurrent medications before prescribing.
Individuals with cardiovascular disorders, including severe heart disease or those on nitrate therapy, should refrain from usage. Similarly, individuals with significant hepatic or renal impairments require thorough evaluation prior to initiation.
Patients with known hypersensitivity to sildenafil or any component of the tablet should avoid this medication. Proper assessment of health history and current treatments by a healthcare provider will guide eligibility.
Cautions with Other Medicines
Viagra Professional, like other PDE-5 inhibitors, may interact with specific medications. Concomitant use with nitrates or guanylate cyclase stimulators can precipitate a severe drop in blood pressure. This combination is contraindicated.
Simultaneous administration with alpha-blockers may cause symptomatic hypotension. Patients should establish stable alpha-blocker therapy before commencing sildenafil.
CYP3A4 inhibitors such as ketoconazole, itraconazole, and ritonavir can elevate sildenafil plasma levels. Careful monitoring and potential dosage adjustments may be warranted. Users should inform their healthcare providers about all concurrent medications.
Effects of Viagra Professional
Viagra Professional significantly enhances erectile function in men with erectile dysfunction. It improves the ability to achieve and sustain an erection adequate for sexual intercourse. Many users report heightened confidence and improved sexual satisfaction.
Common side effects include headaches, facial flushing, and dyspepsia. Transient visual disturbances may occur. Adverse effects tend to be dose-dependent and generally resolve with time.
Rare, but serious, effects involve sudden hearing loss or prolonged erections exceeding four hours. Immediate medical attention is imperative in such cases. Regular follow-ups with healthcare providers ensure safe and effective use.
Where to Buy Viagra Professional Online
Numerous online platforms offer Viagra Professional for purchase. It’s crucial to choose licensed pharmacies to ensure authenticity. Prescriptions remain necessary, safeguarding users from counterfeit products.
Reputable sources provide complete product information, aiding informed decisions. Secure sites adhere to privacy standards, ensuring safe transactions. Customers should verify the legitimacy of online pharmacies before proceeding.
Local regulations may influence the availability and shipment of sildenafil products. Buyers should consult local laws to ensure compliance. Pharmacists and healthcare providers serve as valuable resources for obtaining this medication safely.
| Viagra Professional Feature | Description |
|---|---|
| Onset of Action | 30-60 minutes |
| Duration of Effect | 4-6 hours |
| Metabolism | Hepatic |
| Excretion | Renal |
