Shelf life or expiration of Clarithromycin

I was prescribed this product back on May 13th 2006 and then was re prescribed this product, I didnt get to finish the product the first time, I was curious if this product would still be good it doesnt smell bad.... could you email me with what the typical shelf life should be for this product, being that this is the Biaxin XL 500 MG form of Clarithromycin 500 XL, thank you for taking the time to read and respond to this question.

Jason.