EBD (event based dosing) – also called on-demand dosing

EBD (event based dosing) – a term for taking medicines only at times linked to a relevant event.

EDD is also called “on-demand dosing”.

For example, EBD for PrEP (to prevent HIV transmission) involves taking PrEP before sex and then for several days after sex. EBD for PrEP is only appropriate in some situations and for some people – otherwise daily dosing is recommended,