Azithromycin — Macrolide antibiotic. Study the mechanism, listed uses and warnings from the US label on one sourced card.
Generic name
Azithromycin
Class
Macrolide antibiotic
Mechanism
Binds to the bacterial 50S ribosomal subunit and interrupts protein synthesis.
Used for
Community-acquired pneumonia caused by the specified susceptible bacteria in adults or children aged 6 months and older who are appropriate for oral treatment; Streptococcal pharyngitis or tonsillitis in adults or children aged 2 years and older who cannot use first-line therapy; Acute otitis media caused by the specified susceptible bacteria in children aged 6 months and older; Urethritis or cervicitis caused by the specified susceptible organisms in adults
Common side effects
Diarrhea; Nausea; Abdominal pain; Vomiting
Warnings
Serious allergic and skin reactions; Hepatotoxicity; QT prolongation / torsades de pointes
Interactions
Nelfinavir; Warfarin
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: 20260903 · 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.
Mechanism: Macrolide that inhibits bacterial protein synthesis without affecting nucleic acid synthesis.
Only on the Erythromycin (ophthalmic ointment) card: Used for — Superficial conjunctival or corneal infections caused by erythromycin-susceptible organisms; Ophthalmia neonatorum prophylaxis as listed in the selected label; topical prophylaxis alone is inadequate for infants of mothers with clinically apparent gonorrhea · Common side effects — Minor ocular irritation; Redness; Hypersensitivity reactions · Warnings — Hypersensitivity to erythromycin
Mechanism: Disrupts bacterial cell-wall synthesis, producing a bactericidal effect against susceptible organisms.
On both cards: Common side effects — Diarrhea; Nausea; Abdominal pain; Vomiting
Only on the Cephalexin card: 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 · Common side effects — Dyspepsia · Warnings — Serious hypersensitivity (anaphylactic) reactions; C. difficile-associated diarrhea; Seizure potential · Interactions — Metformin; Probenecid
Mechanism: Inhibits bacterial DNA gyrase (topoisomerase II) and topoisomerase IV, disrupting processes required for bacterial DNA replication and maintenance.
On both cards: Common side effects — Diarrhea; Nausea; Vomiting · Warnings — Hepatotoxicity
Only on the Ciprofloxacin card: Used for — UTIs due to specified susceptible bacteria in adults, and selected complicated UTI/pyelonephritis in children aged 1–17; acute uncomplicated cystitis use is reserved for patients without alternatives; Specified susceptible lower-respiratory infections in adults; acute chronic-bronchitis exacerbation use is reserved for patients without alternatives; Specified susceptible skin, bone and joint infections in adults; Post-exposure inhalational anthrax and source-specified plague treatment/prevention in adults and children · Common side effects — Abnormal liver function tests; Rash · Warnings — QT prolongation; C. difficile-associated diarrhea · Interactions — Tizanidine (contraindicated); Theophylline; Other CYP1A2 substrates
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