19254
The study objective was to investigate the potential of a beverage containing silymarin and l - arginine to alter basic physiological and urodynamic parameters in 22 normal healthy men aged 38 - 59years .
 Chemical: l - arginine
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: l - arginine