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: The abolition of muscle fasciculations ( by 0 . 075mg / kg dose of Fazadinium ) did not influence the occurrence of scoline pain .
### Output Text:
The abolition of muscle fasciculations ( by 0 . 075mg / kg dose of <span class="chemical">Fazadinium</span> ) did not influence the occurrence of <span class="chemical">scoline</span> pain . 