^^^Yes, they do. Morphine is a natural opiate, as is codiene. Both are found in poppies. These and other chemicals found in poppies are used to make most of the semi-synthetic opiates, including herion (diacetlymorphine). However, seeds contain little morphine, and the tea tastes hideous. Pods on the other hand contain enough morphine that a couple shot glass full of finely ground pods, made into a tea, contain a dose equal to a strong opiate pill (this is a subjective measure, based on the experience, rather than quantitative analysis). This also tastes bad, but tolerably so.