3277
Increasing the brain serotonin levels by the administration of 5 - hydroxytryptophan ( 80 - 160 mg / kg ) in combination with a peripheral decarboxylase inhibitor resulted in an inhibition of the muscimol effect .
 Chemical: serotonin; Chemical: 5 - hydroxytryptophan; Chemical: muscimol
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 Chemical: serotonin; Chemical: 5 - hydroxytryptophan; Chemical: muscimol