The medications are supposed to make you feel or perform better. If a new medication fails to do this, the doctor should be notified to either increase the dose or stop the drug. Many patients do not do this and simply keep taking medications that are not helping. It is also important to tell the doctor about uncomfortable side effects. If side effects occur, it is no one's fault, and the doctor should be notified.
Many patients stop their medicine without telling anyone because of side effects.
On the other hand, some patients experience problems caused by new medical problems and blame them on the PD or the PD medication. Therefore, it is important to have an honest relationship with your doctor.