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

### input:
What are the side effects of NexitoForte and Risdone for a patient of 75 years . He was operated for NPH and VP Shunt was installed about 5 months back . One month after the operation suddenly he became very uneasy and started to roll over in the bed . This drug was then started by the Neurologist . But now we are witnessing deteriorating changes in his behavior. Is there any chance that these changes are due to the side effects of these drugs.?

### output:

Welcome to Chat Doctor! I have gone through your question, and it says that your father is on next forte and risperidone. You have not mentioned the dosage of any of them. Next forte is safe in this age, except when thee is severe liver dysfunction, it has the least interaction with other medicines, but, may cause reduction in sodium levels, especially in old age. This happens more when there is already existing liver or kidney problems. One needs to get sodium and other electrolytes checked to see if that is causing disorientation/ other deteriorating symptoms. You should have mentioned the deteriorating symptoms, this would rally have helped in telling the possible cause... Risperidone is also usually safe in low dose, and actually an effective medicine. In some patients it may cause disorientation, delirium, and rigidity (tightening of limbs), increase in salivation and slurring of speech... So, whatever it is, please talk to his doctor, after evaluation and looking at the patient one can tell what is happening. I know it is troublesome, but sometimes even the right medicine may cause distress in few patients.  These Chat Doctor.  His doctor may go for some other safe and low potency medicine or education the dosage of these only. I hope your father gets well sooner free to ask more questions