Generic vs. Brand-Name ED Meds: What's the Difference?

Yes, you can get a Sildenafil prescription online from an EU-licensed doctor. If you're looking for a Sildenafil prescription online in Spain, Portugal, or any other EU country, Hi-Doctor makes it simple and fast. Our EU-licensed doctors review your case individually, and if treatment is appropriate, you receive a REMPE electronic prescription within 24 hours. This prescription is valid at any EU pharmacy, all for a flat €25 online consultation fee.

How it works — get your Sildenafil prescription in 4 steps

1. Fill the online medical questionnaire (2–3 minutes). Answer a few questions about your health and medical history directly in our secure app.
2. A licensed EU doctor reviews your case in private. Our doctors, licensed across the EU, assess your information carefully and confidentially.
3. If appropriate, you receive a REMPE electronic prescription within 24 hours. If the doctor finds Sildenafil suitable for your needs, your prescription is issued quickly to your private account and by email.
4. Pick up your medication at any EU pharmacy. Take your valid EU prescription to any pharmacy in Spain, Portugal, Italy, France, Germany, or other EU countries to get your Sildenafil.

Who qualifies for Sildenafil

Our EU-licensed doctors assess each case to determine if Sildenafil is appropriate for you. They look for specific criteria to ensure your safety and the effectiveness of the treatment. Generally, Sildenafil is prescribed for adult men experiencing erectile dysfunction. Key factors considered include your overall health, existing medical conditions, and any medications you currently take. Conditions like severe heart disease, uncontrolled high blood pressure, or a history of stroke may make Sildenafil unsuitable. The doctor will also check for contraindications, especially if you are taking nitrate medications for chest pain, as combining these with Sildenafil can be dangerous. Your doctor will ensure Sildenafil is safe for you before issuing a prescription.

What Sildenafil actually does (and doesn't do)

Sildenafil, the active ingredient in Viagra, helps men achieve and maintain an erection firm enough for sexual activity. It works by increasing blood flow to the penis when you are sexually aroused. Sildenafil is a PDE5 inhibitor, which means it relaxes the blood vessels in the penis, allowing more blood to flow in. It does not create an erection automatically; sexual stimulation is still required for the medication to work. Sildenafil typically takes effect within 30-60 minutes and its effects last for about 4-6 hours. It will not cure erectile dysfunction, but it effectively manages the symptoms. It also doesn't increase sexual desire or protect against sexually transmitted infections.

Side effects and when to stop

Like all medications, Sildenafil can cause side effects. Common side effects include headache, flushing (redness and warmth in your face), nasal congestion, indigestion, and visual disturbances (such as blurred vision or a blue tint to your vision). These are usually mild and temporary. More serious side effects are rare but can occur. You should seek immediate medical attention if you experience sudden vision loss, sudden hearing loss, or an erection that lasts longer than four hours (priapism). Stop taking Sildenafil and contact your doctor if you experience chest pain, dizziness, or nausea during sexual activity. Always discuss your full medical history and all medications you are taking with your doctor to ensure Sildenafil is safe for you.

Why Hi-Doctor vs. walking into a clinic

Getting a Sildenafil prescription through Hi-Doctor offers significant advantages over traditional clinic visits. With us, you get a prescription in under 24 hours, compared to waiting weeks for an in-person appointment. Our online consultation is a flat €25, avoiding variable and often higher private clinic fees. Your privacy is paramount: everything happens in the app via private, RGPD-compliant, auditable chat, eliminating reception desk interactions and crowded waiting rooms. It’s convenient – manage your health from your phone, without city-centre travel. We've served over 50,000 patients with a 4.8 Trustpilot rating, proving our reliability and patient satisfaction. No WhatsApp, no SMS, no in-person visit required – just efficient, discreet care.