I was curious as to the Dalmane in particular since it is such an unusual drug. If pulmonary edema is a common side effect, then a whole group of people can be ruled out as potential patients taking it.
I've seen it prescribed, but not that often at all. I was hoping maybe some info on it could give me an idea as to where it could have come from, since it is so rarely used. For instance, as someone pointed out, when it is seen in a med list, it's usually an elderly patient. Any type of "quirk" like that might tell us something.
Like Honey said (at least I think it was Honey), find out where the medication came from, and you'll find out what happened.
Was the medication stolen from somewhere? Was it prescribed to some other family member? Was it something available to an outsider? Was it something borrowed from a friend? If, for instance, Dalmane is something only seen given to elderly patients, then who has access to a nursing home or an elderly family member? If it's used to calm down panicky dogs, who has access to a vet? Same with the Flexeril; who had an injury, perhaps, being treated or access to someone with an injury. Who had been treated in the past with muscle relaxants? Did anyone in the group have chronic pain issues? Most of these questions will never get answered, but it doesn't hurt to look.