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Central nervous system effects secondary to ciprofloxacin treatment are uncommon and usually consist only of minor dizziness or mild headache , although rare occurrences of seizures and hallucinations have been reported .
 hallucinations, ciprofloxacin; mild headache, ciprofloxacin; minor dizziness, ciprofloxacin; seizures, ciprofloxacin
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:
 hallucinations, ciprofloxacin; mild headache, ciprofloxacin; minor dizziness, ciprofloxacin; seizures, ciprofloxacin