2335
It is increasingly observed that the majority of pharmaceutical drugs , even those believed to have minimal adverse effects , such as proton pump inhibitors and anti - hypertensives , in fact adversely affect immune development and functions and are most likely also deleterious to microbiota .
 None
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 None