Oklahoma State Senator Proposes Bill To Protect Gun Rights Of Medical Marijuana Users
This is very similar to how FAA licensed pilots can't hold a license if they test positive regardless of it being legal in their state -
Certain responsibilities come with obligations.
https://www.faa.gov/about/office_org/headquarters_offices/avs/offices/aam/drug_alcohol/policy/qa_sse/a3/
Q&As for Safety-Sensitive Employees
I tested positive for marijuana on a DOT/FAA drug test, but recreational use of marijuana is legal in my state. Will my test be cancelled? No, your test will not be cancelled. Although some states have passed laws that permit the recreational use of marijuana, the Medical Review Officer (MRO) who reviews your test results will not verify your drug test as negative based on recreational use.
https://www.nevadacarry.org/blog/is-it-illegal-to-be-on-prescription-drugs-and-carry-a-gun
https://www.unitedgungroup.com/news/2017/10/20/meds-can-cant-carry-concealed-firearm-taking-cbd-oil-medical-cannabis-narcotic-pain-meds/
Is it Illegal to be on Prescription Drugs and Carry a Gun?
I heard through the grapevine that a CCW instructor was telling people it was illegal for them to have a gun and prescription medication in their possession at the same time. I’ve heard others say...
https://www.faa.gov/about/office_org/headquarters_offices/avs/offices/aam/ame/guide/pharm/dni_dnf/
Guide for Aviation Medical Examiners
The lists of medications in this section are not meant to be all-inclusive or comprehensive, but rather address the most common concerns.