TweetI thought Steris Labs stopped making Cyp in the late 90's, and i also read that they are based in Arizona. How long ago did you buy these? They do have the Pharmacia/UpJohn logo, but i do not know if they were bought out since then. I do know that Steris did not start production back up, but they could be an old run. If they were bought out that would account for the different packaging. I would be veery leary with these, but only way to tell is to send sample to lab.