PDE5 Inhibitors: Understanding How ED Medications Work
Struggling with erectile dysfunction? Get an online prescription for PDE5 inhibitors like Viagra or Cialis from an EU-licensed doctor. It's just €25, and you receive your prescription in under 24 hours, valid at any pharmacy in.
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
Looking for an online prescription for ED medication like sildenafil (Viagra) or tadalafil (Cialis) 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 digital prescription for PDE5 inhibitors. The process is fast, private, and costs just €25. You receive your prescription in under 24 hours, valid at any pharmacy across the EU.
How it works — get your ED medication prescription in 4 steps
- Complete your medical questionnaire: Spend 2–3 minutes filling out our secure online form and pay the €25 consultation fee.
- Doctor review & refund guarantee: An EU-licensed doctor individually reviews your health information. If the doctor determines the treatment is NOT appropriate for you, your €25 fee is automatically refunded. No risk involved.
- Receive your prescription: If approved, you get a REMPE electronic prescription (PDF file) sent directly to your Hi-Doctor account and by email within 24 hours.
- Collect your medication: Print the PDF or show it on your phone at any pharmacy in the EU. The REMPE prescription is issued under the Spanish system but is recognised EU-wide under cross-border prescription directive 2011/24/EU.
Who qualifies for ED medication (PDE5 inhibitors)
When you complete your online consultation, our EU-licensed doctors look for several factors to determine if PDE5 inhibitors are safe and appropriate for you. Generally, these medications are for adult men experiencing erectile dysfunction. Key considerations include:
- Your medical history: Conditions like severe heart disease, uncontrolled high or low blood pressure, recent stroke or heart attack, and certain eye conditions (e.g., NAION) can be contraindications.
- Current medications: PDE5 inhibitors interact dangerously with nitrates (often prescribed for chest pain) and can interact with alpha-blockers, certain antifungals, and antibiotics. Always disclose all your current medications.
- Overall health: Liver or kidney problems may require dosage adjustments or make these medications unsuitable.
The doctor's review ensures your safety and the effectiveness of the treatment.
What PDE5 inhibitors actually do (and don't do)
PDE5 inhibitors are a class of medications, including sildenafil (Viagra), tadalafil (Cialis), vardenafil (Levitra), and avanafil (Spedra), used to treat erectile dysfunction (ED). They work by increasing blood flow to the penis when you are sexually stimulated. Here's how:
- Enhance natural process: During sexual arousal, your body releases nitric oxide, which leads to the production of cGMP. cGMP relaxes the smooth muscles in the penis, allowing blood to flow in and create an erection.
- Block cGMP breakdown: The PDE5 enzyme normally breaks down cGMP. PDE5 inhibitors block this enzyme, keeping cGMP levels elevated. This prolongs muscle relaxation and maintains increased blood flow, making it easier to achieve and sustain an erection.
What they don't do: PDE5 inhibitors do not cause an erection on their own. Sexual stimulation is still required for them to work. They also do not treat the underlying cause of ED, nor do they increase sexual desire.
Side effects and when to stop
Like all medications, PDE5 inhibitors can cause side effects. Most are mild and temporary:
- Headache
- Flushing (redness in face/neck)
- Nasal congestion
- Indigestion or heartburn
- Visual disturbances (e.g., blurred vision, sensitivity to light, a blue tinge to vision for sildenafil)
When to seek immediate medical attention:
- An erection lasting more than 4 hours (priapism).
- Sudden vision loss in one or both eyes.
- Sudden decrease or loss of hearing.
- Chest pain or severe dizziness.
Always inform your doctor about your complete medical history and all medications you are taking to ensure PDE5 inhibitors are safe for you and to minimise risks.
Why Hi-Doctor vs. walking into a clinic
Choosing Hi-Doctor for your ED medication prescription offers significant advantages over traditional in-person clinic visits:
- Speed: Get your prescription in under 24 hours with Hi-Doctor, compared to waiting weeks for a clinic appointment.
- Price: A flat €25 online consultation fee with Hi-Doctor, against variable and often higher private clinic fees. Plus, if the doctor says no, you get your money back.
- Privacy: Everything happens securely within your Hi-Doctor account via RGPD-compliant chat. No awkward waiting room encounters or reception desk conversations.
- Convenience: Access an EU-licensed doctor from your phone or computer, anywhere in the EU. No travel, no time off work.
- Trust: Join 50,000+ satisfied patients with our 4.8 Trustpilot rating.
COMMON QUESTIONS
Frequently asked questions
If our EU-licensed doctor determines that PDE5 inhibitors are not appropriate or safe for you, your €25 consultation fee is refunded automatically. You pay nothing if the treatment isn't approved.
