Viagra Pills: Complete Dosage Guide

Viagra pills are available in three dosage strengths: 25mg, 50mg, and 100mg. Understanding the correct dose is essential for safe and effective treatment of erectile dysfunction. Most men start with 50mg, taken approximately one hour before sexual activity. Your prescriber will determine the most suitable strength based on your individual needs and medical history. EverydayMeds offers both branded Viagra and generic sildenafil options.

  • 25mg Viagra - Lower strength for men who experience side effects or take certain medications
  • 50mg Viagra - Standard starting dose recommended for most men
  • 100mg Viagra - Maximum strength for men who don't respond adequately to lower doses
  • One tablet maximum per 24-hour period regardless of strength
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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 Dosage Options

Available Viagra Strengths

Viagra pills come in three distinct dosage strengths, each designed to meet different treatment requirements. The 25mg tablets are typically prescribed for men who may be more sensitive to the medication or those taking certain other medications that could interact. The 50mg dose serves as the standard starting strength for most men beginning treatment. The 100mg tablets represent the maximum recommended dose and may be prescribed if lower strengths prove insufficient.

Choosing Your Starting Dose

Your prescriber will determine your initial Viagra dose based on several factors including your age, overall health, severity of erectile dysfunction, and current medications. Most men begin with 50mg taken approximately 60 minutes before planned sexual activity. This timing allows the medication to be absorbed effectively whilst providing flexibility in your schedule. The effects typically last between 4-6 hours, though this doesn't mean an erection will persist throughout this period.

Dose Adjustments and Safety

If the initial 50mg dose proves effective but causes bothersome side effects, your prescriber might reduce your dose to 25mg. Conversely, if 50mg doesn't provide adequate results and you tolerate it well, the dose may be increased to 100mg. Never exceed one tablet in any 24-hour period, regardless of strength. Taking more than prescribed can increase the risk of serious side effects including dangerous drops in blood pressure.

Generic Sildenafil Alternative

EverydayMeds also offers generic sildenafil in the same three strengths as branded Viagra. Sildenafil contains the identical active ingredient and works in exactly the same way as Viagra, but at a more affordable price point. Patients can choose between the branded or generic option during checkout, allowing you to select the treatment that best suits your preferences and budget whilst maintaining the same clinical effectiveness.

Taking Viagra Safely

Regardless of which strength you're prescribed, take Viagra on a relatively empty stomach for optimal absorption. Large or fatty meals can delay the medication's onset of action. Avoid alcohol consumption as this can reduce effectiveness and increase the likelihood of side effects. Always follow your prescriber's specific instructions and never adjust your dose without consulting a healthcare professional first.

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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