Environmental information is missing on fass.se (2019-01-17). It is voluntary for manufacturers to provide information about environmental impact on fass.se.
Scientific discussion for the approval of Onsenal (celecoxib)
Onsenal is no longer authorised. "This scientific discussion has been updated until 1 May 2004. No particular risks to the environment of celecoxib use in FAP (familial adenomatous polyposis, red note) can be foreseen. Link to the document https://www.ema.europa.eu/documents/scientific-discussion/onsenal-epar-scientific-discussion_en.pdf
Author: The Pharmaceutical unit of Region Stockholm