Viagra Dosage Guide: 50mg vs 100mg - Which Is Right for You?

Looking to get a Viagra prescription online in Spain, Portugal, or any other EU country? You can. Hi-Doctor makes it simple and discreet. An EU-licensed doctor reviews your case individually online. If treatment is appropriate, you receive a valid REMPE electronic prescription in under 24 hours. The consultation is just €25, and your prescription is valid at any EU pharmacy.

How it works — get your Viagra prescription in 4 steps

1. Fill the online medical questionnaire (2–3 minutes). Provide your health details confidentially in our secure app.
2. A licensed EU doctor reviews your case in private. Our doctors assess your information to ensure Viagra is safe and appropriate for you.
3. If appropriate, you receive a REMPE electronic prescription within 24 hours. Your prescription is delivered directly to your private account and by email.
4. Pick up your medication at any EU pharmacy. Your prescription is valid across the entire European Union.

Who qualifies for Viagra

Our EU-licensed doctors look for specific criteria to ensure Viagra is safe and effective for you. Viagra (sildenafil) is prescribed to treat erectile dysfunction (ED). The doctor considers your overall health, existing medical conditions, and any other medications you are currently taking.

Contraindications include severe heart or liver problems, recent stroke or heart attack, low blood pressure, and certain inherited eye diseases. You will also be asked if you are taking nitrates or guanylate cyclase stimulators, as these medications can interact dangerously with Viagra. Your honest answers in the medical questionnaire help the doctor determine if Viagra is right for you.

What Viagra actually does (and doesn't do)

Viagra helps men with erectile dysfunction achieve and maintain an erection when they are sexually stimulated. It works by increasing blood flow to the penis. It is important to understand that Viagra does not cause an erection on its own; sexual stimulation is still necessary for it to be effective.

Typically, Viagra starts working within 30 to 60 minutes after you take it, and its effects can last for about 4 to 6 hours. It will not increase your libido or cure underlying causes of ED, but it can significantly improve your ability to achieve an erection during this window.

Side effects and when to stop

Like all medications, Viagra can cause side effects. Common side effects are usually mild and temporary, including headache, flushing, nasal congestion, indigestion, and visual disturbances like blurred vision or sensitivity to light. These often subside as your body adjusts to the medication.

However, some side effects are serious and require immediate medical attention. These include sudden vision loss, sudden hearing loss, or an erection lasting more than 4 hours (priapism). If you experience any of these serious side effects, stop taking Viagra and seek emergency medical care immediately. Always discuss any concerns with your doctor.

Why Hi-Doctor vs. walking into a clinic

Choosing Hi-Doctor for your Viagra prescription offers significant advantages over traditional clinic visits:

• Speed: Get your electronic prescription in under 24 hours with Hi-Doctor, compared to waiting weeks for an in-person appointment at a clinic.
• Price: Our flat €25 online consultation fee is transparent, unlike variable private clinic fees.
• Privacy: Everything happens in our secure, RGPD-compliant app. No waiting rooms, no reception desks, just private chat with your doctor.
• Convenience: Access expert medical care from your phone, anywhere in the EU, without the hassle of travel or time off work.

With over 50,000 patients served and a 4.8 Trustpilot rating, Hi-Doctor provides a trusted, modern alternative for your healthcare needs.

Frequently asked questions

Is it legal to get Viagra online in the EU?

Yes, it is legal to get a Viagra prescription online from an EU-licensed doctor. Hi-Doctor connects you with doctors who are fully licensed to practice within the European Union, ensuring your prescription is valid and compliant with EU regulations.

How long does the prescription take?

After you complete your medical questionnaire, an EU-licensed doctor reviews your case. If treatment is deemed appropriate, you will receive your REMPE electronic prescription in under 24 hours.

Can I use the prescription at any EU pharmacy?

Yes, absolutely. The REMPE electronic prescription issued by our EU-licensed doctors is valid at any pharmacy across the European Union, including Spain, Portugal, Italy, France, Germany, and more.

What happens if the doctor says no?

If the doctor determines that Viagra is not appropriate or safe for you, no prescription will be issued. In such cases, your €25 consultation fee is fully refunded.

Is my data private?

Yes, your privacy is our top priority. All your medical information and interactions with our doctors are handled within our private, RGPD-compliant app. We do not use WhatsApp or SMS, and all communications are auditable and secure.

How much does it cost?

The online consultation with an EU-licensed doctor costs a flat fee of €25. This fee covers the doctor's review of your case and the issuance of a prescription if appropriate. If no prescription is issued, you receive a full refund.