What Does Viagra Do - Start Your Online Assessment

Understanding what Viagra does is essential before beginning treatment for erectile dysfunction. Viagra contains sildenafil citrate, a PDE5 inhibitor that increases blood flow to the penis when sexually aroused, helping men achieve and maintain erections. Our comprehensive online assessment allows you to access this prescription-only treatment discreetly from home. EverydayMeds' qualified UK prescribers evaluate your medical history, current medications, and health status through our secure clinical questionnaire. Following approval, you can choose between branded Viagra or generic sildenafil, both offering identical effectiveness with discreet next-day delivery across the UK.

  • Complete secure online consultation with UK-licensed prescribers from home
  • Choose between branded Viagra or cost-effective generic sildenafil at checkout
  • Receive detailed information about how Viagra works and what to expect
  • Access discreet packaging and next-day delivery across the UK
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Not sure which one? Here's the honest comparison.

Sildenafil
~60 min
~4 hrs
you like to plan ahead
Tadalafil (as-needed)Most prescribed
~30 min
up to 36 hrs
you want a whole weekend covered
Tadalafil Daily
always active
continuous
you never want to think about timing
Vardenafil
~15–30 min
~8 hrs
you want the fastest onset

How ED treatment works in your body.

Increases blood flow

Increases blood flow

When PDE5 is suppressed, blood is able to flow more freely through the body—including to the (you guessed it) penis.

Increase erections

Increase erections

More blood flow to the penis means harder, more satisfying erections once you're sexually stimulated.

How Our Online Assessment Works for Viagra Treatment

Understanding What Viagra Does Before Your Assessment

Viagra works by blocking phosphodiesterase type 5 (PDE5), an enzyme that restricts blood flow to the penis. When sexually aroused, this mechanism allows increased blood circulation, helping achieve firm erections. Importantly, Viagra doesn't cause automatic erections - sexual stimulation remains necessary. The medication typically works within 30-60 minutes and effects can last 4-6 hours, though this doesn't mean erections persist throughout this period.

Our online assessment ensures you understand exactly what Viagra does and whether it's suitable for your situation. The clinical questionnaire covers your medical history, current medications, and lifestyle factors that may affect treatment effectiveness or safety.

Complete Your Secure Online Consultation

EverydayMeds' online assessment process connects you with GMC-registered prescribers who specialise in men's health. The comprehensive questionnaire evaluates your eligibility for Viagra treatment, examining cardiovascular health, current medications, and any contraindications that might make treatment unsuitable.

During the assessment, you'll provide detailed information about your erectile dysfunction symptoms, duration, and any underlying health conditions. This thorough evaluation ensures Viagra is appropriate and helps determine the optimal starting dosage, typically 50mg, which can be adjusted based on effectiveness and tolerability.

Choose Between Branded Viagra or Generic Sildenafil

Following successful completion of your online assessment, EverydayMeds offers both branded Viagra and generic sildenafil at checkout. Both medications contain identical active ingredients and deliver the same therapeutic effects. Viagra represents the original branded product manufactured by Pfizer, while sildenafil offers the same clinical benefits at a lower cost point.

Understanding what Viagra does helps inform this choice - both options work identically by inhibiting PDE5 enzymes and improving blood flow to penile tissue. The decision often comes down to personal preference and budget considerations, with many patients choosing generic sildenafil for ongoing treatment.

What to Expect During Treatment

Your online assessment includes comprehensive information about what Viagra does and realistic expectations for treatment. Approximately 70-80% of men experience improved erections with sildenafil-based medications. However, effectiveness may vary based on underlying health conditions, concurrent medications, and lifestyle factors.

The assessment covers proper usage guidelines, including taking Viagra 30-60 minutes before sexual activity, limiting intake to one dose per 24-hour period, and understanding how food and alcohol may affect absorption. High-fat meals can delay onset, while excessive alcohol consumption may reduce effectiveness and worsen potential side effects.

Safety Considerations and Contraindications

Our online assessment thoroughly evaluates safety considerations surrounding what Viagra does and potential interactions with your current medications. Particular attention focuses on nitrate medications, commonly prescribed for chest pain, as this combination can cause dangerous blood pressure drops.

The clinical questionnaire identifies contraindications including severe heart disease, recent heart attacks or strokes, severe liver problems, and medications that interact dangerously with sildenafil. Alpha-blockers used for prostate problems require careful evaluation, as combined use may cause symptomatic hypotension.

Managing Side Effects and Monitoring Response

Understanding what Viagra does includes awareness of potential side effects, which the online assessment covers comprehensively. Common effects include headaches, facial flushing, indigestion, and nasal congestion. These symptoms are typically mild and often diminish with continued use as your body adjusts to the medication.

The assessment provides clear guidance about serious side effects requiring immediate medical attention, including priapism (painful erections lasting over four hours), sudden vision or hearing loss, and chest pain during sexual activity. Our follow-up support ensures you can contact prescribers if concerns arise during treatment.

Discreet Delivery and Ongoing Support

Following successful completion of your online assessment, EverydayMeds arranges discreet packaging and next-day delivery across the UK. All medications are dispensed from our GPhC-registered pharmacy, ensuring quality and regulatory compliance.

Our ongoing support includes medication reviews, dosage adjustments if needed, and access to clinical advice about what Viagra does in your specific circumstances. Regular follow-up assessments ensure treatment remains appropriate and effective as your health needs evolve.

What you need to know about erectile dysfunction

It's one of the most common conditions we treat, and one of the most treatable.

What is Erectile Dysfunction?
ED means finding it hard to get or keep an erection firm enough for sex. It's not unusual to have an off night; the point at which it's worth doing something is when it's happening regularly, or when it's starting to bother you.
How will I feel when I take ED medication?
For most men, nothing feels different day to day. The medication works in the background — when you're sexually aroused, it helps blood flow where it's needed, so erections come more easily and last longer. It doesn't cause arousal on its own. Some men notice mild, short-lived effects like a headache, facial flushing or a stuffy nose, which usually pass as the dose wears off.
Why do I need a prescription for ED medication?
ED treatments are prescription-only medicines in the UK because they aren't suitable for everyone — for example, alongside certain heart conditions or medications like nitrates. That's why we ask you to complete a short online consultation first. A UK-registered prescriber reviews your answers to make sure your chosen treatment is safe and right for you before it's dispensed.
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