Here is the answer from Ergopharm:
The product is good for 3 years from the date of
manufacture. On the bottom of each bottle is a lot code,
for example: DC11902EX05. This code shows the day of the
year (119th) and the year it was made (02). EX05 means that
it will EXpire on that same day (119) of 2005. Now,
expiration dates are based on when the product starts to
slowly degrade. It does not mean that magically on that day
the product will be no good. We estimate that it'll
probably maintain 80% potency AFTER even 4 years have
passed.