N&PD Moderators: Skorpio Forums Media, Science and Research Neuroscience and Pharmacology Discussion Why is hydrocodone so stimulating compared to codeine? JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding. You are using an out of date browser. It may not display this or other websites correctly.You should upgrade or use an alternative browser. Members who reacted to message #3 All (1) Like (1) Feb 22, 2022 polarthedog Bluelighter Messages 2,038 Reaction score 1,604 Points 70 Loading… Forums Media, Science and Research Neuroscience and Pharmacology Discussion Why is hydrocodone so stimulating compared to codeine?