498
Prior to surgery , levodopa induced dyskinesia had improved ( < or = 50 % ) under treatment with amantadine ( 400 mg / day , po ) in all three patients .
 dyskinesia, levodopa
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:
 dyskinesia, levodopa