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vancomycin
This term refers to a specific pharmaceutical agent and is used almost exclusively within medical, pharmacological, and clinical contexts. It carries a connotation of "last resort" or high-potency treatment, as it is typically reserved for severe, drug-resistant infections where other antibiotics have failed.
As a chemical substance and medication, the word is treated as an uncountable noun. It describes the drug as a mass entity rather than individual units; therefore, it does not have a plural form in standard medical usage.
Meanings
A powerful glycopeptide antibiotic used primarily to treat severe infections caused by Gram-positive bacteria, particularly those resistant to other antibiotics such as methicillin-resistant Staphylococcus aureus (MRSA).
The patient was administered vancomycin to treat a resistant staphylococcal infection.