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  1. Overview of Antibacterial Medications - The Merck Manuals

    Antibacterial medications are derived from bacteria or molds or are synthesized de novo. Technically, “antibiotic” refers only to antimicrobials derived from bacteria or molds but is often (including in THE …

  2. Antibiotic - Wikipedia

    An antibiotic is a type of antimicrobial substance active against bacteria. It is the most important type of antibacterial agent for fighting bacterial infections, and antibiotic medications are widely used in the …

  3. Antibiotics 101: List of Common Names, Types & Their Uses

    Dec 6, 2025 · Antibiotics specifically treat infections caused by bacteria, such as Staph., Strep., or E. coli., and either kill the bacteria (bactericidal) or keep it from reproducing and growing …

  4. Common Antibiotics: Names, Types, and When to Use Them

    Dec 16, 2025 · Antibiotics are medicines that are used to treat certain kinds of bacterial infections. They work to clear up infections either by killing bacteria or stopping their growth. Antibiotics typically have …

  5. Antibiotic | Definition, Types, Side Effects, Resistance ...

    Dec 28, 2025 · Antibiotics vary in their range of action. Some are highly specific. Others, such as the tetracyclines, act against a broad spectrum of different bacteria. These are particularly useful in …

  6. ANTIBACTERIAL Definition & Meaning - Merriam-Webster

    The meaning of ANTIBACTERIAL is directed or effective against bacteria. How to use antibacterial in a sentence.

  7. Antibiotics: How they work, uses, side effects and how to use

    Apr 17, 2025 · Antibiotics work by killing bacteria and preventing them from multiplying. Common antibiotics include penicillin and amoxicillin. Doctors may also use azithromycin and doxycycline for …

  8. Antibiotics: What To Know - Cleveland Clinic

    Antibiotics are powerful, lifesaving medications that treat bacterial infections like strep throat and urinary tract infections. But they’re not for every sickness, and they can cause side effects like diarrhea. …

  9. What is an Antibiotic? Definition, Types, Uses & How They Work

    Apr 14, 2025 · Beyond Pills: The Future of Antibacterial Defense While antibiotics remain essential, the future of infection control may include new tools. Scientists are studying antimicrobial peptides—tiny …

  10. Antibiotics - MedlinePlus

    Apr 17, 2023 · Antibiotics only treat certain bacterial infections, such as strep throat, urinary tract infections, and E. coli. You may not need to take antibiotics for some bacterial infections. For …