Sildenafil Tablets vs Viagra: Same Active Ingredient

When comparing sildenafil tablets to Viagra, you're essentially looking at the same medication with one key difference: branding and cost. Both contain identical sildenafil citrate as their active ingredient, offering the same effectiveness for treating erectile dysfunction. Sildenafil tablets represent the generic version, providing a more affordable option whilst maintaining the same safety profile and clinical benefits. Understanding the differences between branded Viagra and generic sildenafil can help you make an informed choice about which option best suits your needs and budget. EverydayMeds offers both alternatives, allowing you to select your preferred treatment during checkout.

  • Identical active ingredient (sildenafil citrate) in both branded and generic versions
  • Generic sildenafil tablets cost significantly less than branded Viagra
  • Same dosage strengths available: 25mg, 50mg, and 100mg options
  • Equal effectiveness and safety profiles with same side effect considerations
Start your free consultation

Takes less than 2 minutes to complete, 100% online

More pleasure. Less waiting. Built to last.

Get Started

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 the Key Differences Between Options

Active Ingredient Comparison

The fundamental similarity between sildenafil tablets and Viagra lies in their identical active ingredient: sildenafil citrate. This PDE5 inhibitor works by increasing blood flow to the penis during sexual arousal, helping men achieve and maintain erections suitable for sexual activity. Whether you choose generic sildenafil tablets or branded Viagra, you're receiving the same pharmaceutical compound that has been clinically proven effective for treating erectile dysfunction.

Both medications undergo the same rigorous manufacturing standards and quality controls required by the MHRA (Medicines and Healthcare products Regulatory Agency). This ensures that generic sildenafil tablets meet identical safety and efficacy requirements as their branded counterpart.

Cost Considerations and Value

The most significant difference when comparing sildenafil tablets versus Viagra is cost. Generic sildenafil tablets typically cost considerably less than branded Viagra, sometimes offering savings of 70% or more. This price difference occurs because generic manufacturers don't need to recoup the original research and development costs that Pfizer invested in creating Viagra.

Despite the lower cost, sildenafil tablets must demonstrate bioequivalence to Viagra, meaning they deliver the same amount of active ingredient to your system at the same rate. This regulatory requirement ensures that choosing the generic option doesn't compromise on effectiveness or safety.

Dosage Flexibility and Options

Both sildenafil tablets and Viagra are available in the same three dosage strengths: 25mg, 50mg, and 100mg. Most men start with the 50mg dose, which can be adjusted up to 100mg or down to 25mg based on effectiveness and any side effects experienced. This flexibility allows healthcare providers to tailor treatment to individual needs regardless of whether you choose generic or branded options.

The dosing schedule remains identical for both medications: take one tablet 30-60 minutes before planned sexual activity, with a maximum of one dose per 24-hour period. Neither medication should be taken more frequently, and both require sexual arousal to be effective.

Effectiveness and Performance

Clinical studies consistently demonstrate that generic sildenafil tablets perform identically to branded Viagra in terms of effectiveness. Both medications typically work for approximately 70-80% of men with erectile dysfunction, with effects beginning within 30-60 minutes and lasting up to 4-6 hours.

The onset and duration of action remain the same regardless of which option you choose. Factors that influence effectiveness - such as taking the medication with high-fat meals, consuming excessive alcohol, or underlying health conditions - affect both branded and generic versions equally.

Side Effect Profile Comparison

Since both medications contain identical active ingredients, the side effect profiles are the same. Common side effects include headaches, facial flushing, indigestion, nasal congestion, and mild dizziness. These effects are typically mild and temporary, often diminishing as your body adjusts to the medication.

Serious side effects, whilst rare, carry the same risk profile for both options. These include priapism (prolonged painful erections), sudden vision or hearing loss, and severe allergic reactions. The same contraindications apply to both medications, particularly the dangerous interaction with nitrate medications.

Patient Preferences and Choice

Some men prefer branded Viagra due to familiarity with the product or confidence in the original manufacturer. Others prioritise the cost savings offered by generic sildenafil tablets, especially for long-term treatment. Both preferences are valid, and the choice often comes down to personal priorities regarding budget versus brand recognition.

EverydayMeds recognises these individual preferences by offering both options during the checkout process. After completing your clinical assessment and receiving approval from our UK-licensed prescribers, you can select either branded Viagra or generic sildenafil tablets based on your personal preference.

Regulatory Standards and Quality

Both branded and generic versions must meet the same stringent UK regulatory requirements. Generic sildenafil manufacturers must demonstrate that their products are therapeutically equivalent to the original Viagra through comprehensive bioequivalence studies. This process ensures that switching between branded and generic versions won't affect your treatment outcomes.

All sildenafil products dispensed through EverydayMeds come from MHRA-approved manufacturers and are dispensed by our GPhC-registered pharmacy, ensuring you receive genuine, quality-assured medication regardless of which option you choose.

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.
Couple laughing together

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

Get it delivered fast

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

Frequently asked questions