“....Same thing for NSAID prescriptions,etc.......”
NSAIDs are used for asthma, among other ailments.
Does that mean anyone with an inhaler can’t own a gun??
They are also used for helping people to go to sleep.
Inability to sleep could be construed as resulting from stress, fatigue, personal problems, etc. Do you not think that the gun takers would take prescription use history to extremes?