Can you give us any more info on the context? was this in the UK, or in the States? how was it pronounced? could it have been "triam", maybe someone's abbreviation for triamcinolone; I remember a belgian medicine called Triaminic, discontinued around 10 years ago...
Maybe it's the initials of something, just like 5-PAS was 5-paraaminosalicylic acid (I think!)?
Oooh, I do like a good puzzle!
