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Two patients with signs of carbamazepine neurotoxicity after combined treatment with verapamil showed complete recovery after discontinuation of the calcium entry blocker .
 Chemical: carbamazepine; Disease: neurotoxicity; Chemical: verapamil; Chemical: calcium
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
 Entities: carbamazepine, neurotoxicity, verapamil, calcium 
Answer:
 Chemical: carbamazepine; Disease: neurotoxicity; Chemical: verapamil; Chemical: calcium