sulfamethoxazole

[suhl-fuh-meth-ok-suh-zohl]

noun

Pharmacology.

1. an antimicrobial substance, C 1 0 H 1 1 N 3 O 3 S, used against a variety of susceptible Gram-positive and Gram-negative organisms, as in the treatment of certain urinary tract infections and skin infections.

Word History and Origins

Origin of sulfamethoxazole¹

1955–60; sulfa(nilamide) + meth(yl) + (is)oxazole; is-, ox-, azole

Example Sentences

Orthopedist No. 3 put me on sulfamethoxazole/trimethoprim and cephalexin, which seemed to work, or so I convinced myself.

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The drug, sulfamethoxazole, is an antibiotic that’s used to treat or prevent infections.

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This antibiotic is often prescribed in combination with sulfamethoxazole to treat common infections.

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Human and wildlife E. coli isolates also had similar levels of resistance to the same antibiotics—most commonly ampicillin, doxycycline, streptomycin, tetracycline, and trimethoprim/sulfamethoxazole.

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In the United States, most Shigella is already resistant to the antibiotics ampicillin and trimethoprim/sulfamethoxazole.

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