My mistake, I knew about the connection between Asian ethnicity and 2C9 but I was just looking at the 3A4 for the steroid. According to what I see the formoterol goes through 2D6, 2C19, 2C9. and 2A6. I don't know if that means it can be metabolized by any of them or if its sequential, the product of the first is acted on by the second, etc.

judi