expiry date for photo paper?

i just found 2 brand new & unopened boxes of black & white photo paper (the kind you use in the dark room) which i got years ago.

was wondering if they are still good to print or if they have an expiry date & are useless now.

if the paper is not fogged.....even age can do this.....you can use a 5% solution of Benzatrizole in the developer..this will save the paper....and film too.....
Kodak sells it under the name of Kodak Anti-Fog Solution.......don

thanks! i'll keep that in mind if i do eventually get to use the paper.