A medication used to treat or suppress bacterial infections; often synonymous with antibiotic or antimicrobial agents.
風邪には抗生剤は効かないことが多い。
Antibiotics often do not work against the common cold.
医師が感染症のために抗生剤を処方した。
The doctor prescribed antibiotics for the infection.
抗生剤の不適切な使用は耐性菌の増加を招く。
Improper use of antibiotics leads to an increase in resistant bacteria.