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, …

Dec 26, 2025 · Penicillin, antibiotic derived from Penicillium mold, one of the first antibiotics to be discovered.

Apr 11, 2023 · 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 …

Mar 14, 2024 · 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 …

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.

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 …

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 …