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Sexual health6 minute read

Erectile Dysfunction Medication: Understanding the Timeline

Written by Hi Doctor editorial teamPublished 1 February 2026

Get your erectile dysfunction medication prescription online from an EU-licensed doctor. Hi-Doctor offers a €35 online consultation, with a prescription issued in under 24 hours if appropriate, valid at any EU pharmacy.

Erectile Dysfunction Medication: Understanding the Timeline —
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DIRECT ANSWER

An online consultation lets an EU-licensed doctor review your case and, if appropriate, issue an electronic prescription; each pharmacy decides whether it can dispense it.

Doctor reply in under 2 hours

Average doctor reply under 2 hours; at night and on public holidays it can take longer, always within 24 hours. A prescription only if appropriate.

EU-licensed doctors

Every case is reviewed by an EU-licensed doctor.

Electronic prescription

Each pharmacy decides whether it can dispense an approved prescription; some do not accept PDF prescriptions.

Erectile Dysfunction Medication: Understanding the Timeline

Looking to get an erectile dysfunction medication prescription online in the EU? You've come to the right place. Hi-Doctor connects you with EU-licensed doctors who can review your case remotely. If appropriate, you receive a digital prescription in under 24 hours, valid at any pharmacy across the EU. The online consultation costs just €35, and there's no risk — if the doctor determines the treatment is not suitable, you get your money back.

How it works: get your erectile dysfunction medication prescription in 4 steps

  1. Fill the online medical questionnaire (2–3 minutes) and pay the €35 consultation fee.
  2. A licensed EU doctor reviews your case in private. If the doctor decides the treatment is not appropriate, your €35 is refunded automatically, so there is no risk.
  3. If approved, you receive a valid electronic prescription (PDF file) in your Hi-Doctor account and by email within 24 hours.
  4. Print the PDF or show it on your phone and present it at any pharmacy in the EU (Spain, Portugal, Italy, France, Germany, Netherlands, Belgium, Austria, Ireland, etc.) to collect the medication.

Who qualifies for erectile dysfunction medication

Our EU-licensed doctors individually assess every case to ensure your safety and the effectiveness of treatment. When reviewing your medical questionnaire for erectile dysfunction medication like sildenafil, tadalafil, vardenafil, or avanafil, the doctor looks for:

  • A confirmed diagnosis of erectile dysfunction.
  • No contraindications such as severe heart conditions, recent stroke or heart attack, low blood pressure, or certain eye conditions.
  • Absence of interactions with other medications you are taking, especially nitrates for chest pain, which are strictly contraindicated.
  • Overall good health status, as assessed through your medical history.

The doctor's priority is always your health. If the treatment is deemed inappropriate, your consultation fee is fully refunded.

Don't see your condition on Hi-Doctor yet?

Hi-Doctor is continuously onboarding EU-licensed specialists across new conditions. Register your interest and we'll notify you the moment a doctor is available for your case. In the meantime, see how the service works: €35 online consultation, reply within 24 h, full refund if the doctor decides the treatment isn't appropriate.

Discover Hi-Doctor →

What erectile dysfunction medication actually does (and doesn't do)

Erectile dysfunction medications, such as sildenafil (Viagra), tadalafil (Cialis), vardenafil (Levitra), and avanafil (Spedra), work by increasing blood flow to the penis. They belong to a class of drugs called PDE5 inhibitors. When sexually stimulated, these medications help relax the blood vessels, allowing for a stronger and more sustained erection.

It's crucial to understand that these medications do not create an erection automatically; sexual stimulation is still required. They also do not cure erectile dysfunction, but rather treat its symptoms. Onset times vary: avanafil can work in as little as 15 minutes, sildenafil and vardenafil typically within 30-60 minutes, and tadalafil can be effective within 30 minutes and last up to 36 hours. Factors like food intake, alcohol, and individual metabolism can influence how quickly and effectively they work.

Side effects and when to stop

Like all medications, erectile dysfunction drugs can cause side effects. Common side effects include headache, flushing, nasal congestion, indigestion, and temporary visual disturbances (especially with sildenafil). These are usually mild and temporary.

More serious side effects are rare but require immediate medical attention. These include:

  • A painful erection or an erection lasting longer than 4 hours (priapism).
  • Sudden decrease or loss of vision.
  • Sudden decrease or loss of hearing.
  • Symptoms of a heart attack, such as chest pain spreading to your jaw or shoulder, nausea, sweating.

Always inform your doctor about all your medical conditions and other medications you are taking to avoid potential interactions and side effects. If you experience any severe or concerning symptoms, stop the medication and seek medical advice immediately.

Why Hi-Doctor vs. walking into a clinic

Getting your erectile dysfunction medication prescription through Hi-Doctor offers distinct advantages over traditional clinic visits:

  • Speed: Receive your prescription in under 24 hours with Hi-Doctor, compared to potentially weeks of waiting for a clinic appointment.
  • Price: A flat €35 online consultation fee at Hi-Doctor versus variable and often higher private clinic fees.
  • Privacy: Everything happens securely within the Hi-Doctor app – no waiting rooms, no reception desks, just discreet, RGPD-compliant chat with your doctor.
  • Convenience: Consult from anywhere, at any time, using your phone or computer. Avoid travel to a city-centre clinic.
  • Trust: Join over 50,000 satisfied patients with our 4.8 Trustpilot rating, knowing you're in expert hands with EU-licensed doctors.

Your interest guides which specialists we add next.

If your treatment isn't yet among Hi-Doctor's covered specialties, register at hi-doctor.ai so a doctor can notify you the moment we can handle your case. Our EU-licensed doctors issue electronic prescriptions as a PDF valid at any EU pharmacy, and if the doctor decides the treatment isn't appropriate, the €35 consultation fee is refunded automatically.

Register my interest · €35

COMMON QUESTIONS

Frequently asked questions

If our EU-licensed doctor determines that erectile dysfunction medication is not appropriate for you, your €35 consultation fee is refunded automatically. You pay nothing if the treatment isn't approved, making it a risk-free consultation.

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Written by the Hi Doctor editorial team. General information, not individually reviewed by a doctor.

If the doctor does not approve treatment, we refund the full amount. Every consultation is fully refundable. How refunds work