You need to check with your school of nursing's policy on the use of prescribed controlled substances. You can also check with your state BON.
For my school, we were not permitted to disclose any medications or prescriptions at the time of drug screen. If the drug screen came back positive (depending on the medication), then prescription information was required. Depending on the type of medication, medical clearance may be required before proceeding with the admission.
Were you required to have a physical prior to entrance indicating whether or not you were clear to practice without restrictions? (Some schools
require physicals after you clear the drugs screen & background check, others at the same point in time.) If you have back pain severe enough to require narcotic pain relievers and muscle relaxants (if it is not an acute injury) you may not be able to be medically cleared for nursing school
. For my school, there was a list of requirements such as the ability to lift 50lbs without restriction, standing for long periods of time. If your primary physician could not clear you to perform these tasks without restriction you were required to delay admission until you were medically cleared. Again medical clearance would be at the discretion of your own physician.
For example. when I worked as a tech I had an on-the-job injury bad enough to require narcotic pain relievers. I was not permitted to return to full duty until I was medically cleared and no longer on narcotic pain medications.
As far as your anxiety medication, does your prescribing physician know of your desire to enter nursing school? You can make an appointment to discuss with your physician whether he feels this medication would permit you to successfully practice as a nurse or whether other medication might be a better choice. Again this is a discussion between you and your physician