In the sentence extracted from biomedical literature, identify all the chemical entities. The required answer format is the same sentence with HTML <span> tags to mark up specific entities. 
### Entity Markup Guides:
Use <span class="chemical"> to denote a chemical.

### Input Text: One woman , however , developed worsened psychiatric symptoms while taking bromocriptine , and it was discontinued .
### Output Text:
One woman , however , developed worsened psychiatric symptoms while taking <span class="chemical">bromocriptine</span> , and it was discontinued . 