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Sildenafil 50mg vs 100mg: Choosing the Right Dose for You

Need a Sildenafil prescription online in Europe? Get yours today. Our EU-licensed doctors review your case in under 24 hours. If appropriate, receive an electronic prescription valid at any EU pharmacy for just €25.

6 April 2026
Sildenafil 50mg vs 100mg: Choosing the Right Dose for You — article cover image

DIRECT ANSWER

An online consultation lets an EU-licensed doctor review your case and, if appropriate, issue a prescription that is valid across the EU.

Less than 4 hours on average

Prescription issued in less than 4 hours on average if approved.

EU-licensed doctors

Every case is reviewed by a licensed clinician.

Valid across the EU

Approved prescriptions can be used at any EU pharmacy.

In this article

Searching for a Sildenafil prescription online in Europe? You can get Sildenafil through a licensed EU doctor without an in-person clinic visit. Hi-Doctor.ai offers a confidential, fast, and affordable way to access treatment. An EU-licensed doctor reviews your case individually. If they find treatment appropriate, you receive an electronic prescription in under 24 hours. The consultation costs just €25, and your prescription is valid at any EU pharmacy.

How it works — get your Sildenafil prescription in 4 steps

  1. Fill the online medical questionnaire (2–3 minutes).
  2. A licensed EU doctor reviews your case in private.
  3. If appropriate, you receive a REMPE electronic prescription within 24 hours.
  4. Pick up your medication at any EU pharmacy.

Who qualifies for Sildenafil

Our EU-licensed doctors carefully assess each patient to determine if Sildenafil is a safe and appropriate treatment. They look for specific criteria to ensure your well-being. Generally, you may qualify if you are an adult male experiencing erectile dysfunction (ED). The doctor considers your overall health, existing medical conditions, and any other medications you are currently taking. Conditions like severe heart disease, uncontrolled high blood pressure, recent stroke or heart attack, or certain eye conditions (e.g., non-arteritic anterior ischemic optic neuropathy) are contraindications. Always provide a full and accurate medical history in your questionnaire; this helps the doctor make an informed decision and ensures your safety.

What Sildenafil actually does (and doesn't do)

Sildenafil, the active ingredient in Viagra, helps you achieve and maintain an erection firm enough for satisfactory sexual activity. It works by increasing blood flow to the penis when you are sexually aroused. Sildenafil is a PDE5 inhibitor, meaning it relaxes blood vessels in the penis, allowing more blood to flow in. It does not cause an erection automatically; sexual stimulation is still required. The effects typically begin within 30 to 60 minutes after taking the tablet and last for about 4 to 6 hours. Sildenafil does not protect against sexually transmitted infections and is not a cure for ED, but rather a treatment for its symptoms.

Side effects and when to stop

Like all medications, Sildenafil can cause side effects. Common side effects often include headache, flushing, nasal congestion, indigestion, and temporary visual disturbances (e.g., blurred vision, a blue tinge to vision). These are usually mild and temporary. More serious, but rare, side effects include a sudden decrease or loss of vision or hearing, or an erection lasting longer than 4 hours (priapism). If you experience any of these severe side effects, seek immediate medical attention. Always stop taking Sildenafil and consult a doctor if side effects are persistent, severe, or concerning. Never exceed the prescribed dose.

Why Hi-Doctor vs. walking into a clinic

Choosing Hi-Doctor.ai for your Sildenafil prescription offers significant advantages over traditional clinic visits. With Hi-Doctor.ai, you experience unparalleled speed: receive your prescription in under 24 hours, compared to weeks of waiting for an appointment. Our service is transparently priced at a flat €25 for the online consultation, avoiding variable and often higher private clinic fees. Your privacy is paramount; everything happens in your secure in-app account, eliminating reception desk interactions. Enjoy the convenience of managing your health from your phone, without travel to a city-centre clinic. We have served over 50,000 patients with a 4.8 Trustpilot rating, reflecting our commitment to accessible and reliable healthcare.

COMMON QUESTIONS

Frequently asked questions

Yes, it is legal to get Sildenafil online in the EU, provided it is prescribed by a licensed EU doctor after a proper medical consultation, like the one offered by Hi-Doctor.ai.

Licensed EU doctors
Doctor review in less than 2 hours on average
50,000+ patients served
Secure patient account

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