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Buy Viagra Professional
Viagra Professional

1.39
A potent, fast-acting sublingual form of sildenafil used to aid erectile function.
Ingredient
Sildenafil
Category
Erectile Dysfunction
Availability
In Stock
Delivery
Airmail (14-21 days) | EMS trackable (5-9 days)
Product is shipped in a fully discreet envelope with no content disclosure, including all required documentation inside

Product Sheet

Active Ingredient(s)
Sildenafil
Primary Category
Sexual Health
Therapeutic Class
Urologicals, Drugs used in erectile dysfunction, PDE5 Inhibitors
Pharmacological Class
Phosphodiesterase type 5 inhibitor
Indications
Erectile dysfunction
Contraindications
Concurrent use of nitrates, Hypotension, Severe heart or liver issues
Minor Side Effects
Headache, Warmth in face, Stuffy nose
Moderate Side Effects
Indigestion, Blue-tinted vision, Lightheadedness
Serious Side Effects
Painful erection, Sudden vision loss, Irregular heartbeat, Chest pain
Dosage Forms
Sublingual tablet
Administration Route
Sublingual
Mechanism of Action
By dissolving under the tongue, the drug enters the bloodstream rapidly. It inhibits the PDE5 enzyme, maintaining levels of cyclic GMP which allows blood vessels in the penis to stay dilated for an erection.
Prescription Status
Rx
Manufacturer
Various
Patient Summary
A potent, fast-acting sublingual form of sildenafil used to aid erectile function.
Onset Time
20 to 30 minutes
Duration
4 to 6 hours
Storage Instructions
Store in a cool, dry place away from children.
Drug Interactions
Isosorbide, Amyl nitrite, Alpha-blockers, Protease inhibitors
Age Restrictions
Adults over 18
Alternative Drugs
Viagra, Sildenafil

Viagra Professional: Generic Medication Overview

Viagra Professional contains sildenafil as its active ingredient. It is available as a 100 mg pill and is classified as a prescription medication for the treatment of erectile dysfunction (ED) in Hong Kong.

How Viagra Professional Works in the Body

Sildenafil belongs to the class of phosphodiesterase-5 (PDE5) inhibitors. By blocking the PDE5 enzyme, it prevents the breakdown of cyclic guanosine monophosphate (cG ). Elevated cG levels relax smooth muscle in the penile arteries, allowing increased blood flow during sexual stimulation.

  • Onset of action: Typically 30-60 minutes after oral intake.
  • Peak effect: Around 1-2 hours.
  • Duration: Effects may last up to 4-6 hours, depending on individual response.

Conditions Treated by Viagra Professional

  • Erectile dysfunction in adult men, as approved by the Hong Kong Department of Health.
  • The medication is intended for men who have a medical condition that affects normal blood flow to the penis.

Evidence-Based Off-Label Uses

  • Pulmonary arterial hypertension (PAH): Sildenafil is approved for PAH under the brand name Revatio, but the same active ingredient is sometimes prescribed off-label for this condition. Use for PAH is not approved for Viagra Professional and should only be considered under specialist supervision.

Off-label use requires medical supervision and individualized risk assessment.

Who Should (Not) Use Viagra Professional?

Absolute contraindications

  • Known hypersensitivity to sildenafil or any tablet excipients.
  • Concurrent use of nitrates (e.g., nitroglycerin) in any form.
  • Severe uncontrolled hypertension (systolic > 180 mmHg or diastolic > 110 mmHg).

Relative contraindications

  • History of cardiovascular disease (e.g., recent myocardial infarction, unstable angina).
  • Severe liver impairment.
  • Severe renal impairment (creatinine clearance < 30 mL/min).
  • Certain eye conditions (e.g., retinitis pigmentosa).

Special populations

  • Pregnancy & lactation: Not indicated; safety not established.
  • Elderly: May require dose adjustment based on renal or hepatic function.

Safety Profile: Side Effects and Interactions

Common Side Effects

  • Headache - usually mild and transient.
  • Flushing - warm sensation, often resolves without intervention.
  • Indigestion or dyspepsia.
  • Nasal congestion.
  • Visual disturbances (e.g., blurred vision, a blue-tinted view).

Serious Adverse Events

  • Sudden loss of vision (non-arteritic anterior ischemic optic neuropathy).
  • Sudden loss of hearing.
  • Priapism (prolonged erection lasting > 4 hours) - requires immediate medical attention.

Drug Interactions

  • Major: Nitrates (e.g., nitroglycerin, isosorbide dinitrate) - may cause severe hypotension.
  • Moderate: Alpha-blockers (e.g., doxazosin) - can lead to additive blood-pressure lowering effects.
  • CYP3A4 inhibitors (e.g., ketoconazole, erythromycin) - may increase sildenafil plasma levels; dose reduction may be necessary.
  • CYP3A4 inducers (e.g., rifampin, carbamazepine) - may reduce effectiveness.

Patients should inform their healthcare provider of all medicines, supplements, and herbal products before starting Viagra Professional.

Food and Lifestyle Interactions

  • A high-fat meal may delay absorption and onset of action.
  • Moderate alcohol consumption is generally acceptable, but excessive intake can increase the risk of side effects such as dizziness.
  • No specific restrictions on driving, but individuals who experience dizziness should avoid operating machinery.

How to Take Viagra Professional

  • Standard dosing: One 100 mg tablet taken as needed, approximately 30 minutes before sexual activity. Do not exceed one tablet in a 24-hour period.
  • Special populations:
  • Renal or hepatic impairment: A lower starting dose (e.g., 50 mg) may be recommended; clinicians adjust based on laboratory results.
  • Elderly: Begin with 50 mg to assess tolerance before considering a 100 mg dose.
  • Administration: Swallow the pill whole with a glass of water; it may be taken with or without food.
  • Missed dose: If an erection does not occur, do not take an additional tablet. Wait for the next planned occasion.
  • Overdose: Symptoms may include severe dizziness, prolonged erection, or low blood pressure. Seek emergency medical care; supportive measures are the primary treatment.
  • Discontinuation: No tapering is required. Stopping the medication does not cause withdrawal symptoms.

Monitoring and Follow-Up

  • Blood pressure should be measured before initiating therapy, especially in patients with known cardiovascular disease.
  • If the medication is used regularly, periodic assessment of cardiovascular status is advisable.

Storage and Handling

  • Store the pill at room temperature (20-25 °C), away from moisture and direct sunlight.
  • Keep the container tightly closed and out of reach of children.
  • Do not use after the expiration date printed on the packaging.

Medication-Specific Glossary

Phosphodiesterase-5 (PDE5) inhibitor
A drug class that blocks the PDE5 enzyme, enhancing the nitric-oxide/cGMP pathway and promoting smooth-muscle relaxation in the penis.
cGMP (Cyclic guanosine monophosphate)
A signaling molecule that mediates vasodilation; its levels increase when PDE5 is inhibited.
Priapism
A prolonged, often painful erection lasting longer than four hours, which can cause permanent tissue damage if not treated promptly.
Nitric oxide (NO)
A gas released during sexual stimulation that triggers the production of cGMP, leading to vasodilation.

Medical Disclaimer

This article provides educational information about Viagra Professional and is not a substitute for professional medical advice. Treatment decisions, including use for unapproved indications, must be made under the guidance of a qualified healthcare provider. The content is intended for informational purposes and does not constitute medical recommendations. Always consult a physician before starting, stopping, or changing any medication regimen.

Viagra Professional FAQ

Can Viagra Professional be taken with alcohol?

Moderate alcohol consumption usually does not interfere with the effectiveness of sildenafil, but excessive drinking can increase the likelihood of side effects such as dizziness, headache, or low blood pressure. It is advisable to limit alcohol intake when planning sexual activity.

What should I do if I experience a painful erection lasting more than four hours?

A prolonged erection (priapism) is a medical emergency. Seek immediate medical attention, as delayed treatment can lead to permanent damage to penile tissue.

Is there a difference between Viagra Professional and the original Viagra brand?

Both products contain the same active ingredient, sildenafil, in the same 100 mg strength. Differences, if any, may relate to inactive ingredients or manufacturing processes, which are not clinically significant for most patients.

Can I take Viagra Professional if I have high blood pressure?

Sildenafil can be used by men with well-controlled hypertension. However, it should be avoided in cases of severe uncontrolled high blood pressure, and the prescribing physician should evaluate cardiovascular risk before initiating therapy.

How does a high-fat meal affect the medication’s performance?

A fatty meal can delay the absorption of sildenafil, potentially postponing the onset of action by up to an hour. Taking the pill on an empty stomach may provide a quicker response.

Are there any over-the-counter supplements that interact with sildenafil?

Some herbal supplements, such as ginkgo biloba or yohimbine, may affect blood pressure or interact with the metabolism of sildenafil. Discuss all supplement use with a healthcare professional.

What is the typical time frame for the medication to wear off?

The pharmacologic effect of a 100 mg dose usually diminishes within 4-6 hours, though individual response can vary based on age, metabolism, and health status.

Is it safe to use sildenafil if I am taking a blood-thinning medication?

Sildenafil does not have a direct effect on coagulation. However, if you are on anticoagulants, your physician should review your overall medication regimen to ensure safety.

Can women use Viagra Professional for sexual dysfunction?

Sildenafil is not approved for use in women, and its safety and efficacy for female sexual dysfunction have not been established. Women should discuss alternative treatments with their healthcare provider.

How should I dispose of unused or expired Viagra Professional tablets?

Do not flush tablets down the toilet. Return them to a pharmacy’s medication-take-back program or follow local waste-disposal guidelines to prevent accidental ingestion by others.

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