How Long Does Viagra Work? Order Your Repeat Prescription

Need to refill your Viagra prescription? Understanding how long Viagra works helps you plan your treatment effectively. Viagra typically works for 4-6 hours after taking it, though this varies between individuals. EverydayMeds makes ordering your repeat prescription simple through our online consultation service. You can choose between branded Viagra or the more affordable generic sildenafil option, both containing the same active ingredient and offering identical effectiveness.

  • Complete online consultation with UK-licensed prescribers for repeat prescriptions
  • Choose between branded Viagra or generic sildenafil at checkout
  • Fast, discreet delivery to your door within 1-3 working days
  • Professional clinical review ensures safe, appropriate treatment continuation
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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.

Order Your Viagra Repeat Prescription Online Today

Understanding How Long Viagra Works

Viagra contains sildenafil citrate, which typically remains effective for 4-6 hours after taking it. This doesn't mean you'll have an erection for this entire duration - rather, it's the window during which you may find it easier to achieve and maintain an erection when sexually aroused. The medication usually begins working within 30-60 minutes of taking it on an empty stomach, though this can be delayed if taken with fatty foods.

How to Order Your Repeat Prescription

If you're already taking Viagra and need a refill, EverydayMeds makes the process straightforward. Our online consultation allows you to complete a clinical assessment with UK-licensed prescribers who will review your medical history and current treatment. This ensures your repeat prescription remains safe and appropriate for your needs. The consultation covers your response to previous treatment, any side effects experienced, and checks for potential drug interactions.

Choosing Between Viagra and Generic Sildenafil

At checkout, you can select either branded Viagra or generic sildenafil. Both contain identical amounts of the same active ingredient and work in exactly the same way. The main difference is cost - generic sildenafil offers significant savings whilst providing the same clinical effectiveness. Many patients choose the generic option for ongoing repeat prescriptions to reduce long-term treatment costs.

Maximising Viagra's Effectiveness

To ensure Viagra works optimally during its 4-6 hour effectiveness window, take it on an empty stomach or after a light meal. Heavy, fatty foods can delay absorption and reduce effectiveness. Alcohol should be limited as it can impair your ability to achieve an erection and may increase the risk of side effects. Remember that sexual arousal is still required - Viagra doesn't cause automatic erections.

Safe Repeat Prescribing

Even for repeat prescriptions, clinical review remains essential. Your prescriber will ensure Viagra continues to be suitable, particularly if you've started new medications or developed health conditions since your last prescription. This is especially important as sildenafil can interact dangerously with certain heart medications, particularly nitrates used for chest pain. Our consultation process identifies these risks to keep you safe.

Delivery and Packaging

Once your repeat prescription is approved, your medication is dispensed from our UK-registered pharmacy and delivered discreetly to your chosen address. Standard delivery typically takes 1-3 working days, with next-day options available if you're running low on medication. All packaging is plain and confidential, with no indication of contents visible from the outside.

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

Achieve your goals in just a few simple steps.

Step 1

Start Free Consultation

Select safe UK treatments. Quick answers.

Step 2

Review By Our Clinical Team

Our expert team will use your consultation as the basis of our recommendation and communicate with you.

Step 3

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

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