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  1. Penicillin - Wikipedia

    Penicillins were among the first medications to be effective against many bacterial infections caused by staphylococci and streptococci. They are still widely used today for various bacterial infections, …

  2. List of Common Penicillins + Uses & Side Effects - Drugs.com

    Penicillins are a type of antibiotic derived from Penicillium fungi. An antibiotic is a type of medicine that inhibits the growth of, or kills, bacteria. Penicillin G (also called benzylpenicillin) was discovered by …

  3. Penicillin: Types, Uses & Side Effects - Cleveland Clinic

    Penicillin is a group of antibiotics (medications used to treat bacterial infections) that work in a specific way to destroy bacteria in your body. Types of penicillin and drugs closely related to them are called …

  4. Penicillin | Discovery, History, Uses, Types, Side Effects, & Facts ...

    Feb 2, 2026 · Penicillin, antibiotic derived from Penicillium mold, one of the first antibiotics to be discovered.

  5. What Is Penicillin Used For? - Verywell Health

    Oct 14, 2025 · Penicillin is a type of antibiotic that treats bacterial infections like pneumonia and strep throat. Some bacteria have become resistant to penicillin, making the drug less effective.

  6. Penicillin: Uses, Side Effects, Interactions, Pictures ... - WebMD

    Dec 15, 2024 · Overview: Penicillin is an antibiotic that is used to treat bacterial infections. It kills certain types of bacteria by blocking their ability to create their cell wall. The most common side...

  7. What Is Penicillin Used For? Antibiotic Types, Side ... - MedicineNet

    Penicillins are antibiotics used to treat bacterial infections that are derived from the antibiotic penicillin. Penicillin antibiotics stop bacteria from multiplying by preventing bacteria from forming the walls that …

  8. Penicillin - PubMed

    Feb 20, 2024 · Penicillin is effective against infections caused by gram-positive cocci, gram-positive rods, most anaerobes, and gram-negative cocci, and it stands as a cornerstone in the management …

  9. The Role of Penicillin Antibiotics in Fighting Bacterial Infections

    Dec 7, 2023 · Learn about penicillin antibiotics, their uses, side effects, and how they combat bacterial infections.

  10. Penicillins - Infections - MSD Manual Consumer Version

    Penicillins are used to treat infections caused by gram-positive bacteria (such as streptococcal infections) and some gram-negative bacteria (such as meningococcal infections). Most bacteria have …