Written by the Fiveable Content Team • Last updated September 2025
Written by the Fiveable Content Team • Last updated September 2025
Definition
Amoxicillin is a broad-spectrum beta-lactam antibiotic that inhibits bacterial cell wall synthesis, leading to cell lysis and death. It is commonly used to treat various bacterial infections of the respiratory and digestive systems.
5 Must Know Facts For Your Next Test
Amoxicillin is effective against both Gram-positive and Gram-negative bacteria.
It belongs to the penicillin class of antibiotics and has a similar mechanism of action as penicillin but with a broader spectrum.
Amoxicillin is often used in combination with clavulanic acid to overcome resistance mediated by beta-lactamase-producing bacteria.
Common side effects include gastrointestinal issues such as nausea, vomiting, and diarrhea.
It is frequently prescribed for conditions like strep throat, pneumonia, urinary tract infections, and dental abscesses.