I've been ordering meds from Int'l sources for 20 years now, always from western states. I've found it depends 100% on how the vendor packages it and—less so—where you're ordering from.
If you're ordering from Thailand or the Philippines, those might get checked more often than if you're ordering from England or Germany. Having said that though, I've been ordering lately from a pharmacy in England that makes no effort whatsoever to package discretely and I've had more seizures from them than everyone else combined (I'm kinda thinking I won't be ordering from them much longer).
Over the years, I've ordered from England, South Africa, Thailand, the Philippines, Spain, the U.S., and some random African countries, and—until I started ordering from that place in England—I've only had maybe 4 or 5 seizures. If you find that you're getting lots of seizures, you can always look into a mail-forwarding service. And if you receive an order that hasn't been packaged well, just move on to the next vendor—there's quite a few decent ones out there.