Seems like it's within sampling error: https://www.ehealthme.com/ds/tamiflu/loss-of-smell/ https://www.ehealthme.com/ds/tamiflu/loss-of-smell/ Especially when

Seems like it's within sampling error: https://www.ehealthme.com/ds/tamiflu/loss-of-smell/ https://www.ehealthme.com/ds/tamiflu/loss-of-smell/ Especially when flu itself can cause loss of smell/taste: https://www.latimes.com/archives/la-xpm-1988-02-21-mn-44059-story.html https://www.latimes.com/archives/la-xpm-1988-02-21-mn-44059-... (1988) It's not clear if in those cases the loss lasted after end of use. My guess it resolved on its own.