Tadalafil 5mg and 20mg are not simply a weaker and a stronger version of the same treatment plan. The strength must be understood alongside the condition being treated, the prescribed schedule and the exact medicine.
At a glance: Strength and treatment schedule
5 mg
Lower amount of active substance
20 mg
Higher amount of active substance
Amount per tablet; this does not compare effectiveness.
Graphic source: EMA · cialis
Strength is not the treatment schedule
The figure on the pack describes the amount of tadalafil in one tablet. It does not tell you how often that tablet should be taken. Daily and on-demand regimens have different instructions. A larger pack changes the quantity supplied, not the amount in each tablet.
Daily and on-demand use
Licensed Cialis information distinguishes lower-dose daily treatment from higher-strength treatment taken as needed for erectile dysfunction. Daily treatment is reviewed regularly by the prescriber. Some tadalafil products have other indications, so a strength comparison must not be used to transfer instructions between conditions.
Why you should not switch yourself
Adding an on-demand tablet to a daily regimen or changing to 20mg because a lower-strength tablet appears ineffective is not a safe self-directed adjustment. The prescriber needs to consider response, side effects, other medicines and kidney or liver problems. Sexual stimulation is still needed; a longer treatment window is not a continuous erection.
What to compare on the product page
Check the exact product name, strength, formulation, pack quantity and leaflet. Compare like-for-like pack and unit prices. A catalogue entry does not establish licensing or suitability, and delivery availability must be checked for your country. Bring these details and your medicine list to your consultation.
Frequently asked questions
Is 20mg always better?
No. The appropriate strength and schedule depend on your assessment, rather than the largest number on the label.
Can I combine daily and on-demand tablets?
Do not add or combine doses yourself. Ask your prescriber to review the complete regimen.
Important information
Tadalafil must not be combined with nitrates. Chest pain, sudden sight or hearing changes, or a prolonged erection require urgent medical assessment.
Related product pages
These links identify the products discussed in the catalogue. They do not recommend self-treatment or establish regulatory approval.
A route to clarification
- Identify the exact medicine
- Check the prescribed schedule
- Discuss any change
For your consultation
- Note symptoms, when they began and previous treatments.
- Bring a complete list of medicines and supplements.
- Ask about benefits, risks, alternatives and the next review.
Sources and further reading
This guide provides general orientation and does not replace individual diagnosis. Prepared with AI assistance; without professional clinical sign-off.
