Readers ask: Why Is It Better To Use A Narrow-spectrum Antibiotic Rather Than A Broad-spectrum Antibiotic?


Why is it better to use narrow spectrum antibiotics?

Advantages. Narrow – spectrum antibiotic allow to kill or inhibit only those bacteria species that are unwanted (i.e. causing disease). As such, it leaves most of the beneficial bacteria unaffected, hence minimizing the collateral damage on the microbiota. Low propensity for bacterial resistance development.

Are narrow or broad spectrum antibiotics better?

Narrow – spectrum antibiotics perform equally well or better than broad – spectrum ones, which can kill off more of the “ good ” bacteria in your body and cause other bacteria to become resistant to those antibiotics in the future.

What is the difference between broad spectrum and narrow spectrum antibiotics?

Narrow – spectrum antibiotics are active against a select group of bacterial types. Broad – spectrum antibiotics are active against a wider number of bacterial types and, thus, may be used to treat a variety of infectious diseases.

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What is a disadvantage of using broad spectrum antibiotics?

Broad – spectrum antibiotics can lead to a dangerous form of diarrhea, called “C. diff.” It can require removal of the bowel. It kills about 15,000 people in the U.S. each year. Antibiotics can also cause other side effects, such as vaginal infections, nausea, and vomiting.

What is the most broad-spectrum antibiotic?

Ciprofloxacin. Best use of this new broad – spectrum antibiotic.

What is a good broad-spectrum antibiotic?

Examples of broad – spectrum antibiotics

  • Doxycycline.
  • Minocycline.
  • Aminoglycosides (except for streptomycin)
  • Ampicillin.
  • Amoxicillin/clavulanic acid (Augmentin)
  • Azithromycin.
  • Carbapenems (e.g. imipenem)
  • Piperacillin/tazobactam.

Are broad spectrum antibiotics good or bad?

The problem with broad spectrum antibiotics is that they kill good bacteria along with the bad. But a new antibiotic, Debio 1452, which is narrowly targeted at Staphilococcal pathogens, caused almost no harm to the gut microbiome of mouse models, while conventional broad spectrum antibiotics caused major damage.

Is penicillin V broad or narrow-spectrum?

Penicillin V has antibiotic activity against gram-positive bacteria, but is less active against gram negative bacteria, and it is known to be one of the narrowest spectrum antibiotics in use.

Is amoxicillin a broad spectrum or narrow-spectrum antibiotic?

Amoxicillin is considered a broad – spectrum antibiotic, and is effective against the following organisms: b-lactamase-negative) strains of Streptococcus spp.

When do you give broad-spectrum antibiotics?

Because of increasing bacterial resistance, broad – spectrum antibiotics should be initiated when an infectious cause for SIRS is a concern but no specific infection is diagnosed.

What is meant by narrow spectrum antibiotics?

Medical Definition of narrow – spectrum: effective against only a limited range of organisms narrow – spectrum antibiotics effective only against gram-negative bacteria — compare broad – spectrum.

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Which of the following is narrow spectrum antibiotics?

Complete answer: Benzylpenicillin (Penicillin G) is a narrow spectrum antibiotic used for the treatment of susceptible bacterial infections. It is a natural antibiotic of penicillin, given intravenously or intramuscularly because of slow oral absorption.

Why do broad spectrum antibiotics cause resistance?

Antibiotic resistance is a consequence of evolution via natural selection. The antibiotic action is an environmental pressure; those bacteria which have a mutation allowing them to survive will live on to reproduce. They will then pass this trait to their offspring, which will be a fully resistant generation.

Is chloramphenicol a broad spectrum antibiotic?

Chloramphenicol is a synthetically manufactured broad – spectrum antibiotic. It was initially isolated from the bacteria Streptomyces venezuelae in 1948 and was the first bulk produced synthetic antibiotic.

Is streptomycin broad or narrow spectrum?

Streptomycin is a broad spectrum aminoglycoside antibiotic typically used for treatment of active tuberculosis, always in combination with other antituberculosis agents.

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