[xattt]

I used to get all sorts of medically-branded pens and merchandise courtesy of my parents. I had an infinite supply of pens.

Years later, I was working as a nurse on a medical floor. I had a realization that I was filling out an IV med label for Avelox with an Avelox-branded pen.

[wlindley]

Memories: Being in sixth grade and wondering why the teacher thought it was odd that I was using pencils with "Diazepam HCl" on them.

[Doxin]

This dutch web shop selling mostly printer ink includes very nice ballpoint pens with their branding in the packages. End-result: Those pens get used by news readers and youtubers all over the place.