Brand vs. Generic Erectile Dysfunction (ED) Medications: What's the Difference?

Looking for a Sildenafil prescription online in Spain or another EU country? You've come to the right place. You can get Sildenafil through a licensed EU doctor, quickly and discreetly, without a clinic visit. Hi-Doctor connects you with EU-licensed medical professionals who review your case. If treatment is appropriate, you receive a valid electronic prescription in under 24 hours. The cost? Just €25 for the online consultation, and your prescription is valid at ANY EU pharmacy.

How it works — get your Sildenafil prescription in 4 steps

1. Fill the online medical questionnaire (2–3 minutes).
2. A licensed EU doctor reviews your case in private.
3. If appropriate, you receive a REMPE electronic prescription within 24 hours.
4. Pick up your medication at any EU pharmacy.

Who qualifies for Sildenafil

Our EU-licensed doctors individually review every case to ensure Sildenafil is safe and appropriate for you. They look for certain health conditions and consider your medical history. Generally, Sildenafil is prescribed to adult men experiencing erectile dysfunction. However, certain conditions like severe heart disease, uncontrolled high blood pressure, recent stroke or heart attack, or specific eye conditions (e.g., non-arteritic anterior ischemic optic neuropathy) may contraindicate its use. The doctor will also assess any other medications you are taking, especially nitrates, which are dangerous when combined with Sildenafil. Your health and safety are our priority.

What Sildenafil actually does (and doesn't do)

Sildenafil, commonly known by its brand name Viagra, belongs to a class of medications called PDE5 inhibitors. It works by increasing blood flow to the penis when you are sexually stimulated, making it easier to achieve and maintain an erection. It doesn't magically create an erection; sexual arousal is still necessary. Sildenafil typically takes effect within 30 to 60 minutes and its effects last for about 4 to 6 hours. It's important to understand that Sildenafil treats the symptoms of ED, but it doesn't cure the underlying cause. It also does not 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, nasal congestion, indigestion, and visual disturbances (e.g., blurred vision, a blue tinge to vision). These are usually mild and temporary. More serious, though rare, side effects can occur, such as sudden vision loss, sudden hearing loss, or priapism (a prolonged and painful erection lasting more than 4 hours). If you experience any severe or concerning side effects, stop taking Sildenafil immediately and seek urgent medical attention. Always discuss your full medical history with your doctor to understand potential risks.

Why Hi-Doctor vs. walking into a clinic

Choosing Hi-Doctor for your Sildenafil prescription offers significant advantages over traditional clinic visits. We prioritize your speed, privacy, and convenience.

• Speed: Get your electronic prescription in under 24 hours. No weeks-long waits for an appointment.
• Price: A flat €25 for the online consultation, significantly less than variable private clinic fees.
• Privacy: Everything happens in our secure app. No waiting rooms, no reception desks, no awkward face-to-face discussions about sensitive topics. Your data is RGPD-compliant and private.
• Convenience: Consult from anywhere, anytime, using your phone or computer. No travel, no parking, no time off work.

With 50,000+ patients served and a 4.8 Trustpilot rating, you can trust Hi-Doctor for discreet, professional, and efficient care.