High-priority alert based on source significance and keyword relevance.
Context
What happened: South Korean visitors to Japan are bringing back illicit supplies of diabetes treatment Mounjaro, bought at about one-third of the price they would pay at home.
Key numbers: About one-third of the South Korean price. Customs seizures rose sharply this year.
Why it matters: The widening price gap is driving the illicit imports, and South Korea has seized illegal imports of weight loss drugs such as Mounjaro.