3864
However , in order to avoid neuropathic side effects , patients under thalidomide therapy should be monitored every 6 months with nerve conduction studies while taking the drug .
 neuropathic side effects, thalidomide
Please list all entity pairs containing a certain relationship in the given options.Output format is "word1, word2; word3, word4". 
Option: adverse effect 
Text: {0} 
Answer:
 neuropathic side effects, thalidomide