Will some medications for Dementia cause a person to get worse? Should I be calling the doctor?

Mom has had Dementia for about 7 years but recently her symptoms became worse. She had anger issues and OCD and it was just becoming too much to handle alone. During hospitalization they tried meds on her but she was hallucinating, climbing out of bed, chewing off her restraints, etc.

We got her an appt with a Gerontology Case Manager and he gave her two medications, which have helped greatly and we can now actually get sleep at night, which is a blessing.

The problem is that in the past two weeks of taking it, she believes we have two dogs and asks if they both have been fed. We only have one dog. She asked my daughter tonight is she had seen Grace and Mom, were they outside or where were they. Grace died 9 years ago and her mother in 1963. Last night she asked me where Raven sat at the dinner table and I said," Me Mom? I'm Raven." She said No I wasn't.

This type of confusion never occurred prior to her taking this medication. It doesn't happen continuously but it happens almost once a day. I know that medication that is meant to help one thing may cause something else to happen, but do you think these symptoms or signs should be acceptable or should I be calling the doctor telling him to change it?

Let me just say that prior to the medication I was ready to put her in a nursing home because I couldn't take the behavior and yelling and abusive language and not sleeping at night. The medication has made her behavior manageable but do I want it to cause something else?