Tablet Viagra: Complete Patient Information

Viagra tablets contain sildenafil citrate, a prescription treatment for erectile dysfunction in men. Understanding how Viagra works, proper dosing, and potential side effects helps ensure safe and effective treatment. EverydayMeds provides both branded Viagra and generic sildenafil options following clinical consultation with UK-licensed prescribers. This guide answers common patient questions about Viagra tablets.

  • Available in 25mg, 50mg, and 100mg tablet strengths
  • Requires prescription following clinical assessment
  • Take 30-60 minutes before sexual activity
  • Maximum one tablet per 24-hour period
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Not sure which one? Here's the honest comparison.

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

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.

Viagra Tablets: Essential Treatment Information

How Viagra Tablets Work

Viagra tablets contain sildenafil citrate, a PDE5 inhibitor that increases blood flow to the penis during sexual arousal. The medication blocks the enzyme phosphodiesterase type 5, allowing blood vessels to relax and widen. Viagra requires sexual stimulation to be effective and does not cause automatic erections. Effects typically begin within 30-60 minutes and may last 4-6 hours.

Dosing and Administration

Viagra tablets are available in 25mg, 50mg, and 100mg strengths. Most men start with 50mg, taken approximately one hour before sexual activity. Dosage may be adjusted to 25mg if side effects occur, or increased to 100mg if 50mg proves insufficient. Take only one tablet within any 24-hour period. Fatty meals may delay the onset of action.

Branded vs Generic Options

EverydayMeds offers both Viagra (branded) and sildenafil (generic) tablets at checkout. Both contain identical active ingredients and work in the same way. Generic sildenafil provides a more cost-effective option while maintaining the same clinical effectiveness as branded Viagra. Patients can choose their preference during the ordering process.

Who Can Take Viagra Tablets

Viagra tablets are suitable for adult men over 18 with erectile dysfunction. Treatment requires a prescription following clinical assessment with a UK-licensed prescriber. The assessment evaluates cardiovascular health, current medications, and medical history to ensure safe treatment. Men taking nitrate medications, those with severe heart conditions, or recent stroke/heart attack history may not be suitable candidates.

Potential Side Effects

Common side effects include headache, facial flushing, indigestion, and nasal congestion. These effects are typically mild and temporary. Rare but serious side effects include prolonged erections lasting over 4 hours (priapism) and sudden vision changes. Seek immediate medical attention if these occur. Most men tolerate Viagra tablets well when taken as prescribed.

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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