Glossary Term

ddd

Defined Daily Dosage (ddd) is the WHO-recommended average daily maintenance dose for a drug in its primary indication, used as a standardised unit for comparing and measuring drug utilisation.

Illustration representing ddd
Listen to definition
Related terms
OTC GP BNF
Further reading
WHO: Defined Daily Dose Wikipedia: Defined Daily Dose Browse the HEOR resource database

Spotted an error or have a suggestion? Get in touch

Media Kit · Q2 2026

Where should we send it?

Quick details so we can email the kit and follow up if it's a fit. We use this only to talk to you about sponsorship — never sold or shared.

Your details stay with Mirko von Hein. No newsletter sign-ups, no third-party sharing.