Cephalexin — Cephalosporin antibacterial. Study the mechanism, listed uses and warnings from the US label on one sourced card.
Generic name
Cephalexin
Class
Cephalosporin antibacterial
Mechanism
Disrupts bacterial cell-wall synthesis, producing a bactericidal effect against susceptible organisms.
Used for
Respiratory infections caused by the specified susceptible bacteria; Otitis media caused by the specified susceptible bacteria; Skin and skin-structure infections caused by the specified susceptible bacteria; Bone or genitourinary infections caused by the specified susceptible bacteria
Serious hypersensitivity (anaphylactic) reactions; C. difficile-associated diarrhea; Seizure potential
Interactions
Metformin; Probenecid
Brand questions use only name pairings verified against the linked product source. Unverified pairings are withheld from these questions; the other study content remains available.
Label date: 20261008 · For learning, not clinical decisions. US label and brand information; always consult the current source.
Source snapshot checked: 2026-10-21. The source document and selected fields were compared. The complete card has not had an independent clinical review.
On both cards: Common side effects — Diarrhea; Nausea; Abdominal pain · Interactions — Probenecid
Only on the Cefdinir card: Used for — Mild-to-moderate community-acquired pneumonia due to specified susceptible bacteria in adults and adolescents; Acute exacerbations of chronic bronchitis due to specified susceptible bacteria in adults and adolescents; Acute maxillary sinusitis due to specified susceptible bacteria; pediatric use is addressed in the source-specific dosing section; Streptococcus pyogenes pharyngitis or tonsillitis in the adult/adolescent and pediatric populations specified by the label · Common side effects — Vaginal moniliasis; Headache · Warnings — Cephalosporin hypersensitivity is a contraindication; serious cross-allergic reactions can occur; C. difficile-associated diarrhea may progress to severe or fatal colitis · Interactions — Aluminum / magnesium antacids; Iron supplements
On both cards: Common side effects — Diarrhea · Warnings — C. difficile-associated diarrhea · Interactions — Probenecid
Only on the Cefuroxime card: Used for — Mild-to-moderate streptococcal pharyngitis/tonsillitis caused by susceptible strains in adults and children aged 13 years and older; Acute bacterial otitis media caused by labeled susceptible organisms in children able to swallow tablets whole; Mild-to-moderate acute bacterial maxillary sinusitis caused by susceptible pneumococci or non-beta-lactamase-producing H. influenzae in adults and children aged 13 years and older; Early Lyme disease (erythema migrans) from susceptible B. burgdorferi in adults and children aged 13 years and older · Common side effects — Nausea / vomiting; Jarisch-Herxheimer reaction; Vaginitis · Warnings — Anaphylaxis · Interactions — Drugs that reduce gastric acidity
Mechanism: Interferes with bacterial cell-wall formation, killing susceptible organisms while they are actively multiplying.
On both cards: Common side effects — Diarrhea; Nausea; Vomiting · Warnings — C. difficile-associated diarrhea · Interactions — Probenecid
Only on the Amoxicillin card: Used for — Ear, nose and throat infections caused by the specified susceptible beta-lactamase-negative bacteria; Genitourinary infections caused by the specified susceptible beta-lactamase-negative bacteria; Skin and skin-structure infections caused by the specified susceptible beta-lactamase-negative bacteria; Lower respiratory infections caused by the specified susceptible beta-lactamase-negative bacteria · Common side effects — Rash · Warnings — Anaphylactic reactions; Severe cutaneous adverse reactions · Interactions — Oral anticoagulants; Allopurinol
An item counts as shared only when both cards use the same wording. If a card does not list an item, that is not a statement that the effect never occurs.
Capsera