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CA inhibitors ( CAIs ) such as acetazolamide , methazolamide , topiramate , zonisamide , and sulthiame can reduce seizures through perturbation of the CO2 equilibrium and / or the inhibition of ion channels .
 Chemical: acetazolamide; Chemical: methazolamide; Chemical: topiramate; Chemical: zonisamide; Chemical: sulthiame; Chemical: CO2
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: acetazolamide; Chemical: methazolamide; Chemical: topiramate; Chemical: zonisamide; Chemical: sulthiame; Chemical: CO2