anti-diarrhoeal       
 adjective [ before noun ] UK (also antidiarrhoeal); (US antidiarrheal, anti-diarrheal) uk/ˌæn.ti.daɪ.əˈriː.əl/ us/ˌæn.taɪ.daɪ.əˈriː.əl/
 止泻药
used to treat diarrhoea (= an illness in which the body's solid waste is more liquid than usual and comes out of the body more often)
  over-the counter anti-diarrhoeal medication 非处方止泻药 
 a medication known for its antidiarrhoeal and analgesic properties  一种以止泻和镇痛特性而闻名的药物 
 - More examples
 - Exercise caution with anti-diarrhoeal medications and laxatives.
 - The leaves are said to have antispasmodic and antidiarrhoeal benefits.
 - oral antidiarrhoeal agents
 
anti-diarrhoeal       
noun [ C ] UK (also antidiarrhoeal); (US antidiarrheal, anti-diarrheal) uk/ˌæn.ti.daɪ.əˈriː.əl/ us/ˌæn.taɪ.daɪ.əˈriː.əl/
 止泻药
a drug or substance that is used to treat diarrhoea (= an illness in which the body's solid waste is more liquid than usual and comes out of the body more often)
  Treatment consisted mostly of anti-diarrhoeals. 治疗主要包括止泻药。 
 These plants are used as antidiarrhoeals in traditional medicine.  这些植物在传统医学中用作止泻药。 
 - More examples
 - the use of over-the-counter anti-diarrhoeals