... day for anxiety and panic disorder i have also been taking 10/325 norco every 4-6 hours due to i am set up for surgery my? ? Is my klonopin isn't working nonprescription i can take 6 mg at once and nothing still panicky does klonopin stop working after while IV been taking it about 3-4 months any suggestions would be great should i ask my doctor to switch benzos r all they all like that i mean even at high dose nothing. TX for any help