An elderly male with history of parkinsonism on treatment with levodopa visited your clinic complaining of tremors for which dopamine agonists ropinirole was added and slowly dose increased in subsequent visits but without much response and tremors persisted. What will be the appropriate next step in treatment?
Stop ropinirole and add another dopamine agonist Add MAO B inhibitors Add trihexyphenidyl Refer to neurosurgeon