Describing a film over a carton as the medicine’s pack fails the moment someone looks for the surface that touches the dose. The damage is a tamper or barrier claim made for a layer that was never specified to do that job.
Overwrapping, on this page, means a film placed around a finished carton. The carton already holds the dose pack. The film is outside that carton. It is not the primary pack in the labels used on this site.
What the film can be asked to do
A requirement can ask the film to hold a bundle together, to show that the carton was opened if the chosen film actually tears that way, or to carry a code if the code is specified and checked. Each of those is a written requirement. The existence of film does not meet a tamper-evidence rule by itself. This page does not quote such a rule, because the legal text was not retrieved on 14 October 2026.
What it does not do
The film in this description does not touch the dose, does not replace the leaflet, and does not carry a moisture or oxygen number. Identity on the carton still has to be specified. A scuffed film is not evidence about the quality of the medicine inside. The WHO medicines page discusses quality-assured products. It is not an overwrapper specification.
Read the layer names on Primary, secondary and tertiary packaging and the carton checks on Pharmaceutical cartoning. The glossary uses the same meaning of overwrap.
How this page was put together
The position of the film is a definition so it is not confused with the dose container. No film grade, speed or certification is stated. No tamper statute is paraphrased.