I am in Canada, so the US drug laws don't apply here, but good to know. My bottle doesn't have an expiry printed on it, maybe because it was a non-refillable prescription supposed to last a week. However, it does have my name on it, so with ID I would think it would be ok to prove it's mine. I'd assume the pills are fairly fresh, the pharmacy is right next door to my dental surgeon, who I'm sure prescibes lots of the stuff.