After going through the clinical history provided, I agree with the possible Parkinson
However, some movement disorder
can present like this.
If the medicines prescribed is working, it confirms the diagnosis of Parkinson.
If you have started the medication, as a caretaker you can provide a feedback to the doctor. If required dosage can be increased or decreased or medication may be changed based on your review
I can confirm you that all these drugs are prescribed in Parkinson disease.
Any further queries, happy to help again.
Dr. Prakash HM