Does your mom see a psychiatrist? Who is prescribing the psych meds? My son's psychiatrist suggests a time. then if my son is sleepy or wired, either one, he will have him switch a med to see if that changes it. My son used to take prozac at night but finds morning better. My son has intrusive thoughts. They can be quite terrible. Not exactly audible hallucinations but he can't turn them off and they play over and over in his head. WE are fortunate though as he was diagnosed with Pure O ocd and knows this and accepts it. so, he can label this as OCD. Your mom is caught up in believing that the voices are real. THIS should most definitely be addressed with her psychiatrist.
My son took seroquel (quitipine). For him, it was not a match. He felt like a train rolled over him. It would hit his body and he would feel like he couldn't move and the whole day, he was groggy. He took it for 6 weeks. They do tend to start with a low dose that happens to have a huge sedation effect and to get real effect, they usually have to move up in dose. I don't know your mom's dose. It's supposed to work well and would hopefully work for auditory hallucinations. Does your mom have dementia? Or schizophrenia or just psychosis with her depression? We gave seroquel at night only.
The pharmacist's computer app should automatically tell him/her if there are any interactions between all the drugs one has prescribed. Can ask the pharmacist. (Or the doctor, who has the same app.)
Sorry about the audible hallucinations. I have a family member with that and she insists its real and thinks I'm just not paying attention or i would hear it too.
There also might be an app online that does the same thing of determining if there are any interactions between a set of medications.