Understanding PDE5 Inhibitors: The Science Behind Erectile Dysfunction Treatment
Thinking about PDE5 inhibitors for erectile dysfunction? Get your prescription online from an EU-licensed doctor in under 24 hours. €25 consultation fee, valid at any EU pharmacy. Hi-Doctor makes it simple and discreet.
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 PDE5 inhibitor 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 and, if appropriate, issue a prescription for PDE5 inhibitors like sildenafil or tadalafil. Get your prescription in under 24 hours for a flat €25 consultation fee, valid at any pharmacy across the EU. No risk — if the doctor says no, you get your money back.
How it works — get your PDE5 inhibitor prescription in 4 steps
- Fill out our quick online medical questionnaire (2–3 minutes) and pay the €25 consultation fee.
- A licensed EU doctor individually reviews your case in private. If the doctor determines that PDE5 inhibitors are NOT appropriate for you, your €25 consultation fee is refunded automatically — no risk.
- If approved, you receive a REMPE electronic prescription (a downloadable PDF file) in your Hi-Doctor account and by email within 24 hours.
- Print the PDF or show it on your phone — present it at any pharmacy in the EU to collect your medication. This prescription is issued under the Spanish system but is recognised EU-wide under cross-border prescription directive 2011/24/EU.
Who qualifies for PDE5 inhibitors
Our EU-licensed doctors assess your medical history to ensure PDE5 inhibitors are safe and effective for you. They look for specific criteria, including a confirmed diagnosis of erectile dysfunction and no contraindications to the medication. Key factors the doctor considers include:
- Your overall cardiovascular health.
- Any existing medical conditions such as heart disease, uncontrolled high blood pressure, or liver/kidney issues.
- All medications you are currently taking, especially nitrates (often used for chest pain) or alpha-blockers, which can interact dangerously with PDE5 inhibitors.
- Your current lifestyle and any psychological factors contributing to ED.
The doctor's review ensures your safety and the appropriateness of the treatment.
What PDE5 inhibitors actually do (and don't do)
PDE5 inhibitors, such as sildenafil (Viagra) and tadalafil (Cialis), work by enhancing your body's natural response to sexual arousal. When you are sexually stimulated, your body releases nitric oxide, which leads to the production of cGMP. cGMP relaxes the smooth muscles in the penis, allowing increased blood flow and an erection.
The enzyme PDE5 typically breaks down cGMP. PDE5 inhibitors block this enzyme, allowing cGMP levels to remain higher for longer. This means that when you are sexually stimulated, it's easier to achieve and maintain an erection.
It's crucial to understand that PDE5 inhibitors do not cause spontaneous erections. Sexual stimulation is still required for the medication to work. They simply facilitate the natural process, making it more effective. They are not a cure for erectile dysfunction but an effective treatment to manage its symptoms.
Side effects and when to stop
Like all medications, PDE5 inhibitors can have side effects. Most are mild and temporary. Common side effects include:
- Headaches
- Facial flushing
- Nasal congestion
- Indigestion
- Dizziness
More serious side effects are rare but require immediate medical attention. These include a sudden decrease or loss of vision or hearing, or an erection lasting more than four hours (priapism). Always follow your doctor's instructions and inform them of any concerning symptoms. If you experience severe side effects, stop taking the medication and seek emergency care.
Why Hi-Doctor vs. walking into a clinic
Choosing Hi-Doctor for your PDE5 inhibitor prescription offers significant advantages over traditional in-person clinic visits:
- Speed: Get your prescription in under 24 hours versus waiting weeks for an appointment.
- Price: A flat €25 consultation fee, compared to variable and often higher private clinic fees.
- Privacy: Everything happens securely within our app and your private account — no awkward waiting rooms or reception desk conversations.
- Convenience: Consult from anywhere, anytime, using your phone or computer. No need to travel to a city-centre clinic.
- Trust: Join over 50,000 satisfied patients. We proudly maintain a 4.8 Trustpilot rating, reflecting our commitment to patient care and service.
- EU-wide validity: Our REMPE prescriptions are valid at any pharmacy across the EU, making it incredibly easy to collect your medication.
COMMON QUESTIONS
Frequently asked questions
If our EU-licensed doctor determines that PDE5 inhibitors are not appropriate for your medical condition, your €25 consultation fee is refunded automatically. You pay nothing if the treatment isn't approved.
