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Sexual health7 minute read

Erectile Dysfunction Medication: Preventing Further Issues

Written by Hi Doctor editorial teamPublished 1 February 2026

Need an ED medication prescription? Get sildenafil (Viagra), tadalafil (Cialis), or other erectile dysfunction treatments online from an EU-licensed doctor.

Erectile Dysfunction Medication: Preventing Further Issues —
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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: Preventing Further Issues

Looking to get an erectile dysfunction (ED) medication prescription online in the EU? You can. Hi-Doctor connects you with EU-licensed doctors who review your case privately. If appropriate, you receive an electronic prescription in under 24 hours. The cost is a flat €35, and each pharmacy reviews your prescription and decides whether it can dispense it; a pharmacist may dispense a locally marketed equivalent. No risk — if the doctor says no, you get your money back.

How it works: get your ED medication prescription in 4 steps

  1. Fill the online medical questionnaire (2–3 minutes) and pay the €35 consultation fee. This provides the doctor with all the necessary information to assess your case.
  2. A licensed EU doctor reviews your case in private. Our EU-licensed doctors evaluate your medical history and current health. If the doctor determines the treatment is not appropriate for you, your €35 is refunded automatically — you pay nothing.
  3. If approved, you receive a valid electronic prescription (PDF file) in your Hi-Doctor account and by email within 24 hours. In several EU countries, including Italy, France, Belgium and Ireland, Hi Doctor connects with the local prescription system; elsewhere the patient receives an electronic prescription signed by an EU-licensed doctor, and each pharmacy reviews it and decides whether it can dispense it.
  4. Print the PDF or show it on your phone and present it at a pharmacy to collect the medication. In several EU countries, including Italy, France, Belgium and Ireland, Hi Doctor connects with the local prescription system; elsewhere the patient receives an electronic prescription signed by an EU-licensed doctor, and each pharmacy reviews it and decides whether it can dispense it. A pharmacist may dispense a locally marketed equivalent.

Who qualifies for erectile dysfunction medication

Our EU-licensed doctors assess each case individually. They look for specific criteria to ensure the medication is safe and effective for you. Generally, you may qualify if you experience consistent difficulty achieving or maintaining an erection firm enough for sexual intercourse. The doctor will consider your overall health, including:

  • Medical history: Conditions like heart disease, high blood pressure, diabetes, or liver/kidney problems are crucial.
  • Current medications: Certain drugs, especially nitrates, can interact dangerously with ED medications.
  • Allergies: Any known allergies to sildenafil, tadalafil, or similar compounds.
  • Physical examination (implied by questionnaire): Symptoms and general health status.

Contraindications include severe heart or liver problems, recent stroke or heart attack, low blood pressure, or certain eye conditions. The doctor will determine if the treatment is appropriate and safe for your specific situation.

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 (ED) medications like sildenafil (Viagra) and tadalafil (Cialis) are known as PDE5 inhibitors. They work by increasing blood flow to the penis, which helps you achieve and maintain an erection when you are sexually stimulated. They do not cause an erection on their own; sexual arousal is still necessary.

What they do:

  • Improve blood flow to the penis.
  • Help achieve and maintain an erection when aroused.
  • Offer a reliable solution for many men with ED.

What they don't do:

  • Increase libido or sexual desire.
  • Cure the underlying cause of ED (though they treat the symptoms).
  • Protect against sexually transmitted infections.
  • Work without sexual stimulation.

Realistic timelines vary, but most medications take effect within 30-60 minutes and last for several hours. Tadalafil, for example, can be effective for up to 36 hours.

Side effects and when to stop

Like all medications, ED treatments can cause side effects. Most are mild and temporary. Common side effects include:

  • Headache
  • Flushing (redness of the face)
  • Nasal congestion
  • Indigestion
  • Back pain (more common with tadalafil)

When to stop and seek immediate medical attention (red flags):

  • An erection lasting longer than 4 hours (priapism).
  • Sudden vision loss or blurred vision.
  • Sudden hearing loss or ringing in the ears.
  • Chest pain or severe dizziness.
  • Severe allergic reaction (rash, swelling, difficulty breathing).

Always discuss any concerns with your doctor and follow their instructions carefully. Medical honesty builds trust and ensures your safety.

Why Hi-Doctor vs. walking into a clinic

Choosing Hi-Doctor for your erectile dysfunction prescription offers significant advantages over traditional in-person clinic visits:

  • Speed: Get your prescription in under 24 hours with Hi-Doctor, compared to weeks of waiting for an appointment at a clinic.
  • Price: A flat €35 online consultation fee with Hi-Doctor versus variable and often higher private clinic fees. Plus, if treatment isn't appropriate, you get your money back — no risk.
  • Privacy: Everything happens securely within the Hi-Doctor app. No waiting rooms, no reception desks, and no awkward in-person conversations. Your data is RGPD-compliant and private.
  • Convenience: Access an EU-licensed doctor from your phone or computer, anywhere in the EU. No need to travel, take time off work, or deal with city traffic.
  • Trust: Join over 50,000 satisfied patients with a 4.8 Trustpilot rating. Our EU-licensed doctors provide professional, auditable care.

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; each pharmacy reviews it and decides whether it can dispense it, and a pharmacist may dispense a locally marketed equivalent. 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 or safe for you, your €35 consultation fee is refunded automatically. You pay nothing if the treatment isn't approved.

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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