Bactericidal

Definition

Bactericidal drugs are antibiotics that kill bacteria directly. They are used to treat infections by eliminating the bacterial pathogen.

5 Must Know Facts For Your Next Test

1. Bactericidal drugs work by disrupting vital processes in bacteria, such as cell wall synthesis or protein production.
2. Common examples include penicillins, cephalosporins, and aminoglycosides.
3. They are particularly useful in treating severe infections where rapid bacterial eradication is necessary.
4. Bactericidal action is often preferred over bacteriostatic action for immunocompromised patients.
5. Misuse or overuse of bactericidal drugs can lead to antibiotic resistance.

Review Questions

• What is the primary mechanism of action for bactericidal drugs?
• Name three examples of bactericidal antibiotics.
• Why might bactericidal antibiotics be preferred for immunocompromised patients?

Related terms

Bacteriostatic:

Drugs that inhibit the growth and reproduction of bacteria without killing them outright.

Antibiotic Resistance:

The ability of bacteria to resist the effects of an antibiotic they were once susceptible to.

Broad-Spectrum Antibiotics:

Antibiotics effective against a wide range of both Gram-positive and Gram-negative bacteria.