Antibiotics have either cidal (killing) effect or a static (inhibitory) effect on microbes. Which of these are Bacteriostatic antibiotics ?

1.Penicillin
2.Erythromycin
3.Aminoglycosides
4.Chloramphenicol

Select the correct answer using the codes below.

A few examples of the two types of antibiotics are as follows:
Bactericidal are Penicillin, Aminoglycosides, Ofloxacin. Bacteriostatic are Erythromycin, Tetracycline and Chloramphenicol.
Learning: The range of bacteria or other microorganisms that are affected by a certain antibiotic is expressed as its spectrum of action.
Antibiotics which kill or inhibit a wide range of Gram-positive and Gram-negative bacteria are said to be broad spectrum antibiotics.
Those effective mainly against Gram-positive or Gram-negative bacteria are narrow spectrum antibiotics. If effective against a single organism or disease, they are referred to as limited spectrum antibiotics.
Penicillin G has a narrow spectrum. Ampicillin and Amoxycillin are synthetic modifications of penicillins. These have broad spectrum.

By: kamaljeet kaur