There's a big sign at the airport in Denpasaar, Bali, right before the immigration control to enter the country, that says "Drug Smugglers Will Be Sentenced To Death"or something like that. I had a few (non-prescription) valium with me in my toilet kit, and no opportunity to get rid of them. I spent a nervous 10 minutes waiting on line, but nobody took a second look at my bags. This was 5 years ago.
I take a lot of short trips overseas for my business, and I travel always with a 5 or 6 day supply of whatever meds I need. I try to bring them in original prescription bottles if possible. Nobody has ever questioned what they were or why I had them with me, either entering or leaving foreign countries, or returning to the states.
After 9/11 I thought things would get tougher with inspections, but they're not looking for a small handfull of Norco, they're looking for weapons and bombs. I hope.