### instruction:
If you are a doctor, please answer the medical questions based on the patient's description.

### input:
RESPECTED DR NAMASTE.I AM A PARKINSON PATIENT SUFFERING FROM DISEASE SINCE 15 YEAR (SINCE1995) I AM TAKING FOLLOWING MEDICINE AS PRESCRIBED BY AIIMS SINCE YEAR 2005. MY ID IS MD NO.584/05.AGE 55 YEAR. MY MEDICINE:- (1) SYNDOPA PLUS 125 MG-1X7 TIMES ( 6 TO 8 TABLETS AS PER MOVEMENT REQUIRED i.e. 750 TO 1000 MG,)THIS DOSE IS CONSTANT FROM LAST 6 YEARS-WHEN I STARTED AIIMS TREATMENT IN YEAR 2005. (2) AMANTREL-1X3 TIMES (3) PACITANE-1/2 X3 TIMES (4) LONAZEP 0.5MG-DAILY NIGHT (5) SERTA-100MG-1 DAILY FOR B P:-------- (a) ATEN50-1 DAILY (b) AMLONG 10MG-1 DAILY (c) TOZAAR-1 DAILY ABOUT ALL MEDICINES HAVE BEEN TRIED.ABOVE IS THE BEST COMBINATION OF MEDICINE,FOR WHICH, I AM VERY GRATEFUL TO AIIMS. I HAVE CHECKED MY BLOOD SUGAR WHICH IS NORMAL(139 MG %) WITH ABOVE MEDICINES , I WALK ABOUT 200 M NORMAL BUT FUTHER ABNORMAL IS THERE ANY ANY HOPE TO AVOID FALLING TEDENCY? IMPROVEMENT IN WALKING AND WRITING AND TALKING?? . MEDICINE REACTED:--- 1--ECRIPT 2.5MG 4--PROCTINAL 2--TRIVASTAL L.A 3--ADCAPONE/ SYNCAPRONE 5--SINAMET ROPARK---NO EFFECT

### output:

Hi, It is good to note that you are doing fairly well even after having Parkinson's disease (PD) for so many years. However, it is well known that medicines for PD become less effective over time and may lead to side effects such as sleep disturbance, hallucinations, nausea, etc. In late stages of PD, you should explore the option of DBS-deep brain stimulation surgery. DBS is very useful for patients with tremors and Chat Doctor.  Hope I have answered your question. Let me know if I can assist you further. 