How Long Does Viagra Work? Get Treatment Online

Viagra typically works for 4-6 hours after taking, though this doesn't mean you'll have an erection for this entire time. The medication helps achieve erections when sexually aroused during this window. At EverydayMeds, you can access both branded Viagra and generic sildenafil through our confidential online consultation service, with fast UK delivery available for eligible patients.

  • Complete our confidential online consultation with a UK-licensed prescriber
  • Choose between branded Viagra or generic sildenafil at checkout
  • Receive your prescription medication with discreet, fast UK delivery
  • Access ongoing support and repeat prescriptions through your account
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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.

Understanding Viagra's Duration and Getting Treatment

How Long Viagra Remains Effective

Viagra typically remains effective in your system for 4-6 hours after taking a dose. This timeframe represents when the medication can help you achieve and maintain erections when sexually aroused - it doesn't mean you'll have a continuous erection. The peak effectiveness usually occurs 1-2 hours after taking the tablet, with effects gradually diminishing afterwards.

Factors That May Influence Duration

Several factors can affect how long Viagra works for you individually. Age, overall health, metabolism, and dosage all play roles in the medication's duration. Food intake, particularly fatty meals, can delay the onset but may also affect how long the medication remains active. Alcohol consumption should be limited as it can reduce effectiveness and increase side effects.

Getting Viagra Online Through EverydayMeds

Our streamlined online consultation process makes accessing ED treatment straightforward and confidential. You'll complete a comprehensive medical questionnaire reviewed by UK-licensed prescribers who assess your suitability for treatment. This clinical evaluation considers your medical history, current medications, and cardiovascular health to ensure Viagra or sildenafil is appropriate for you.

Branded Viagra vs Generic Sildenafil Options

EverydayMeds offers both branded Viagra and generic sildenafil, allowing you to choose based on preference and budget. Both contain the same active ingredient (sildenafil citrate) and work identically - the generic version typically costs less while providing the same therapeutic benefits. You can select your preferred option during the checkout process after your consultation is approved.

Dosage and Timing Guidance

Most patients start with a 50mg dose, which can be adjusted to 25mg or 100mg based on effectiveness and any side effects experienced. Take your prescribed dose 30-60 minutes before planned sexual activity, with a maximum of one tablet per 24-hour period. The medication requires sexual arousal to work effectively - it doesn't cause automatic erections.

Safety Considerations and Contraindications

Viagra cannot be prescribed to everyone and has important safety considerations. It's contraindicated for men taking nitrate medications (such as GTN spray), those with severe heart conditions, or recent stroke/heart attack survivors. Our consultation process carefully screens for these contraindications and drug interactions to ensure your safety.

What to Expect After Ordering

Once your consultation is approved and you've selected your medication, your prescription is processed by our UK pharmacy. Medications are dispatched in discreet packaging with various delivery options available. You'll receive tracking information and can manage repeat prescriptions conveniently through your EverydayMeds account.

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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How it works

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Step 1

Start Free Consultation

Select safe UK treatments. Quick answers.

Step 2

Review By Our Clinical Team

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Step 3

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We’ll deliver direct to you, as quickly as tomorrow.

Frequently asked questions