There is a mental association I have with alcohol and weed dulling my senses from before I started taking that exact med a long time ago, apparently self medicating. I still use both socially since as well, but less frequently and only get urges when alone the meds wear off and my mind starts racing.
Pretty sure it is just memory of both working to dull senses from ADHD symptoms from before I was diagnosed. Don't get the urges while the medication is in my system.