Description

Viagra (Sildenafil): Complete Product Information

Introduction

Viagra is the brand name for sildenafil, a prescription medication primarily used to treat erectile dysfunction (ED) in adult men. It belongs to a class of medicines known as phosphodiesterase type 5 (PDE5) inhibitors. Since its approval, sildenafil has become one of the most widely recognized treatments for ED worldwide. http://reddit.com

Viagra works by increasing blood flow to the penis during sexual stimulation, helping eligible patients achieve and maintain an erection. It does not increase sexual desire and only works when sexual stimulation is present.

This article provides educational information about Viagra, including its technical specifications, packaging, quality assurance, chemical properties, precautions, and shipping information.

How Viagra Works

Viagra contains sildenafil citrate, which inhibits the phosphodiesterase type 5 (PDE5) enzyme.

By blocking PDE5, sildenafil helps maintain higher levels of cyclic guanosine monophosphate (cGMP), allowing smooth muscle relaxation and increased blood flow in the penile tissues during sexual stimulation.

Typical onset of action:

• Approximately 30–60 minutes
• May be delayed by a heavy, high-fat meal
• Effects generally last around 4 hours, though this varies between individuals

Common Medical Uses

Viagra is prescribed for:

• Erectile dysfunction (ED)
• Improvement of erectile function in appropriate patients

Sildenafil is also available under different brand names and formulations for other medical conditions, such as pulmonary arterial hypertension, but those products are prescribed differently.

H3: Technical Details

Product Name: Viagra

Active Ingredient: Sildenafil Citrate

Generic Name: Sildenafil

Drug Class: PDE5 Inhibitor

Administration Route: Oral

Dosage Forms:

• 25 mg
• 50 mg
• 100 mg

Appearance:
Blue, film-coated tablets (brand presentation may vary by manufacturer).

Prescription Status:
Prescription medicine in many countries.

H3: Packaging Information

Packaging varies depending on manufacturer and market.

Typical packaging includes:

• Blister packs
• Cartons containing multiple blister strips
• Patient information leaflet
• Batch number
• Manufacturing date
• Expiration date

Available pack sizes commonly include:

• 1 tablet
• 2 tablets
• 4 tablets
• 8 tablets
• 12 tablets
• 30 tablets

H3: Purity, Testing & Quality Assurance

Quality pharmaceutical manufacturers generally perform testing that may include:

• Identity verification
• Assay of active ingredient
• Dissolution testing
• Uniformity of dosage units
• Microbiological quality testing
• Stability testing
• Impurity profiling

Manufacturing should follow applicable Good Manufacturing Practice (GMP) requirements established by the relevant regulatory authority.

Request the Current COA

Before purchasing pharmaceutical products from a supplier, request the latest documentation, where appropriate, such as:

• Certificate of Analysis (COA)
• Batch-specific quality documents
• Manufacturing information
• Expiration details
• Storage recommendations

Product Information

Active Ingredient
Sildenafil Citrate

Available Strengths

• 25 mg
• 50 mg
• 100 mg

Dosage Form
Film-coated oral tablets

Storage
Store at room temperature in the original packaging, protected from excessive heat and moisture. Keep out of the reach of children.

Chemical Structure

Sildenafil citrate is a selective phosphodiesterase type 5 inhibitor with a well-characterized molecular structure used in pharmaceutical manufacturing.

CAS Number

139755-83-2 (Sildenafil Citrate)

Chemical Formula

Sildenafil Citrate:
C28H38N6O11S

Possible Side Effects

Like all medicines, Viagra may cause side effects.

Common side effects include:

• Headache
• Facial flushing
• Nasal congestion
• Indigestion
• Dizziness
• Visual disturbances

Seek immediate medical attention for serious symptoms such as chest pain, sudden vision or hearing loss, or an erection lasting longer than four hours.

Precautions

Viagra should only be used under the guidance of a qualified healthcare professional.

Important precautions include:

• Do not use with nitrate medications due to the risk of a dangerous drop in blood pressure.
• Tell your healthcare provider about all medications and supplements you take.
• Use caution if you have cardiovascular disease, liver or kidney impairment, or certain eye conditions.
• Avoid excessive alcohol, which may reduce effectiveness and increase side effects.
• Do not exceed the prescribed dose.

Shipping & Availability

Availability depends on local regulations and pharmacy licensing requirements.

Typical supplier information may include:

• Multiple pack sizes
• Secure packaging
• Batch identification
• Expiration labeling
• Temperature-appropriate storage during transport where required

Customers should ensure compliance with all local laws regarding prescription medicines before ordering or importing pharmaceutical products.

Frequently Asked Questions

Is Viagra the same as sildenafil?

Viagra is a brand name containing sildenafil citrate as its active ingredient.

How long does Viagra last?

The effects generally last for approximately four hours, although individual responses vary.

Can women use Viagra?

Viagra is approved for specific indications and populations. It should only be used as directed by a qualified healthcare professional.

Is a prescription required?

In many countries, Viagra is available only by prescription. Requirements vary by jurisdiction.

External Backlink Suggestions

• U.S. Food and Drug Administration (FDA)
• European Medicines Agency (EMA)
• National Health Service (NHS)
• MedlinePlus
• World Health Organization (WHO)

Common Research Applications Include

Although Viagra is an approved prescription medicine rather than a laboratory research chemical, published scientific research has explored:

• Erectile dysfunction treatment outcomes
• Pharmacokinetics of sildenafil
• Cardiovascular safety assessments
• Drug interaction studies
• Quality control and analytical methods
• Pharmaceutical formulation development

Conclusion

Viagra (sildenafil citrate) is a widely prescribed medication for the treatment of erectile dysfunction. When used under appropriate medical supervision, it has an established safety and efficacy profile. Patients should obtain it through legitimate healthcare providers and follow professional medical advice regarding dosage, precautions, and potential interactions.

Disclaimer

This article is provided for educational and informational purposes only. It is not medical advice and should not replace consultation with a qualified healthcare professional. Viagra (sildenafil) is a prescription medication in many jurisdictions. Use only as directed by a licensed healthcare provider and in accordance with local laws and regulations.

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