[maxerickson]

The active compounds are not concentrated in the seeds. The seeds are even in the way of extraction of the opioids from the rest of the plant.

Also, Opium is not really a compound, it's a mixture (which is maybe getting pedantic, but it's ~8th grade science).

[TenOhms]

Correct, the seeds themselves are inert, the latex surrounding the seeds is what contains the opium.