26954
To evaluate the role of calcium antagonism in MeHg toxicity in vivo , adult BALB / c mice were exposed chronically to 0 or 15ppm of Hg ( as MeHg ) via drinking water and to nimodipine , a dihydropryidine , L - type Ca ( 2 + ) channel blocker with action in the CNS .
 Chemical: calcium; Chemical: MeHg; Chemical: Hg; Chemical: MeHg; Chemical: nimodipine; Chemical: dihydropryidine; Chemical: Ca ( 2 + )
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: calcium; Chemical: MeHg; Chemical: Hg; Chemical: MeHg; Chemical: nimodipine; Chemical: dihydropryidine; Chemical: Ca ( 2 + )