Penicillins (P, PCN or PEN) are a group of β-lactam antibiotics originally obtained from Penicillium moulds, principally P. chrysogenum and P. rubens.

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 …

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 …

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

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.

May 20, 2025 · Penicillin are among the earliest discovered and most widely used antibiotics. They belong to the beta-lactam class and are highly effective against various gram-positive and some …

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 …

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...

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 …

Sep 20, 2025 · Penicillin allergy happens when the immune system becomes overly sensitive to the antibiotic. The immune system reacts to the medicine as if it were a harmful substance, such as a …