Being unable to concentrate is a common symptom of depression, it’s certainly one I struggle with
Obviously I’m not a doctor, but I’d be surprised if all anti depressants and/or psychiatric meds are contraindicated with medication for fits. One drug I take (for pain and anxiety) is also used to treat epilepsy, for instance. However, many doctors prefer going down the talking therapy route first before trying ADs.
How did the phone call go?