Narcotoline

Narcotoline is an opiate alkaloid chemically related to noscapine. It binds to the same receptors in the brain as noscapine to act as an antitussive^[1], and has also been used in tissue culture media.^[2] It can be obtained from the opium poppy Papaver somniferum. It is present at much higher levels in strains used for culinary purposes (poppyseed production) than in high-morphine strains used for opium production.^[3]