I’m sorry you haven’t heard from the community as yet, I’m sure someone will chime in soon with their own advice. There has been a lot of conversation around rasagiline and many people have experienced side affects like your partner. You may find it useful to look at some of the threads that have explored this topic in the past and perhaps share your question on one of them - I’ve listed a few threads below:
Additionally, we also have listed some general information about side effects in our our information about individual Parkinson’s drugs which you can find here: Parkinson's drugs | Parkinson's UK
Lastly, please remember that you can give our confidential helpline a call on 0808 800 0303 and speak to one of our advisers about your partners situation and they’ll be able to offer you more support on this.