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Sexual health · TREATMENT GUIDE

Tadalafil treatment guide

Everything you need to know about tadalafil: how to take it, what to expect, managing side effects, and when to contact your doctor.

2 min read · Reviewed by Dr. Alejandro Infante
TREATMENT GUIDE · Sexual health

Tadalafil treatment guide

Everything you need to know about tadalafil: how to take it, what to expect, managing side effects, and when to contact your doctor.

READ TIME
2 min read
PATHWAY
Tadalafil 10/20mg

This guide does not replace the package leaflet or your doctor's assessment.

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Electronic prescription

Sent to the pharmacy you choose; each pharmacy decides whether it can dispense it.

On this page
01

How to use

  1. Two options: as needed or daily

    As needed: take one 10 mg or 20 mg tablet at least 30 minutes before sexual activity. Effect lasts up to 36 hours. Daily: take a 5 mg tablet at the same time each day, regardless of sexual activity.

  2. Flexible timing

    Tadalafil offers a longer window of effectiveness compared to other ED medications. It can be taken with or without food.

02

Dose schedule

  1. As needed: 10 mg or 20 mg

    Take at least 30 minutes before sexual activity. Effect lasts up to 36 hours. Do not take more than one dose in 24 hours.

  2. Daily: 5 mg

    For patients who prefer spontaneity. Take at the same time each day. Allows sexual activity at any time without planning.

03

Side effects

Common side effects

Headache, indigestion, back pain, muscle aches, nasal congestion, or facial flushing. These are usually mild and temporary.

When to seek medical help

If you experience an erection lasting more than 4 hours, sudden vision loss, or chest pain, seek emergency medical attention immediately.

04

When to contact your doctor

  • Erections lasting more than 4 hours
  • Sudden vision or hearing changes
  • Persistent back pain or muscle aches
05

Storage

Store at room temperature below 25°C. Keep in the original packaging to protect from light and moisture. Do not use after the expiry date on the carton.

06

What to expect

Tadalafil is a PDE5 inhibitor that provides a longer window of effectiveness (up to 36 hours) compared to other ED medications. It increases blood flow to the penis in response to sexual stimulation. The daily low-dose option allows for spontaneous sexual activity without planning.

07

Sources

Sexual healthThis guide is for patients whose doctor has already prescribed Tadalafil.Questions about your treatment? Message your doctor from your account. Not on treatment yet? An EU-licensed doctor assesses your case and decides whether any treatment is appropriate.Start consultationThis guide does not replace the package leaflet or your doctor's assessment.
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FAQS

Common questions

Tadalafil treatment guide3 questions
Who reviews the guides?
Each guide is reviewed by an EU-licensed doctor. It is based on the official product information, cited at the end of each guide.
No. They support your treatment, and your doctor's instructions always come first.
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The clinical information on this page was reviewed by: Dr. Alejandro Infante, General medicine, on 26 August 2026. Barcelona College of Physicians, no. 080869277 View profile

If the doctor does not approve treatment, we refund the full amount. Every consultation is fully refundable. How refunds work