Start Your Sildenafil Treatment - Know The Side Effects

Ready to begin sildenafil treatment for erectile dysfunction? Understanding potential side effects is crucial before starting your medication. EverydayMeds offers both Viagra (branded) and sildenafil (generic) through our simple online consultation process. Our UK-licensed clinicians will assess your suitability and explain what to expect from your initial treatment. Get started with confidence knowing exactly what side effects may occur.

  • Complete our confidential online consultation in minutes
  • Choose between Viagra branded or sildenafil generic at checkout
  • UK-licensed prescriber reviews your medical history
  • Fast, discreet delivery to your door once approved
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Takes less than 2 minutes to complete, 100% online

More pleasure. Less waiting. Built to last.

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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.

How To Access Your Sildenafil Starter Treatment

Getting Started With Sildenafil Through EverydayMeds

Beginning your sildenafil treatment is straightforward with our online consultation service. Simply complete our comprehensive medical questionnaire, which typically takes 5-10 minutes. Our UK-licensed prescribers will review your responses and medical history to determine if sildenafil is suitable for you. During checkout, you can choose between Viagra (branded) or sildenafil (generic) - both contain the same active ingredient but at different price points.

Common Sildenafil Side Effects To Expect

Most men tolerate sildenafil well, but some may experience mild side effects, particularly when starting treatment. The most common side effects include headaches, facial flushing, indigestion, and nasal congestion. These typically occur within the first few hours of taking the medication and usually resolve on their own. Headaches affect approximately 16% of users and tend to be mild to moderate in intensity. Facial flushing and warmth occur in about 10% of men and are caused by increased blood flow.

Digestive side effects such as indigestion or stomach upset may affect around 7% of users. Taking sildenafil with food can help reduce these symptoms, though fatty meals may delay the medication's effectiveness. Some men experience temporary changes in vision, including a blue tinge or increased light sensitivity, though this affects fewer than 3% of users and is generally harmless.

When To Seek Medical Attention

Whilst serious side effects are uncommon, it's important to recognise when immediate medical attention is needed. Seek emergency care if you experience chest pain, sudden vision loss, or an erection lasting more than 4 hours (priapism). Contact your prescriber if you develop severe headaches, significant dizziness, or any concerning symptoms that don't resolve.

Some men may experience allergic reactions, though this is rare. Signs include skin rash, difficulty breathing, or swelling of the face and throat. Stop taking sildenafil immediately and seek emergency medical care if you suspect an allergic reaction.

Starting Your First Sildenafil Prescription

The typical starting dose is 50mg, taken approximately one hour before sexual activity. Your prescriber may recommend starting with 25mg if you're over 65, have liver problems, or take certain other medications. Never exceed one dose in 24 hours, and avoid alcohol excess which can increase side effects and reduce effectiveness.

During your online consultation, inform the prescriber about all medications you're taking, particularly blood pressure treatments, alpha-blockers, or nitrates. This information helps prevent dangerous interactions and ensures sildenafil is prescribed safely.

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.

Frequently asked questions