PlainMeds provides educational information only. This is not medical advice. Always consult your doctor or pharmacist.

amikacin vs ceftriaxone

Side-by-side comparison of amikacin and ceftriaxone Data from FDA drug databases (Orange Book, NDC Directory, recalls, shortages) covering 20,000+ approved drugs, plus CMS pricing; see our methodology.

Drug Class
amikacin Aminoglycoside Antibiotic
ceftriaxone Third-Generation Cephalosporin
Type
amikacin Prescription
ceftriaxone Prescription
Summary
amikacin

Amikacin is an antibiotic medicine. It fights serious infections caused by certain types of bacteria.

ceftriaxone

Ceftriaxone is an antibiotic medicine. It fights bacteria in your body to treat different kinds of infections.

What It Treats
amikacin

Amikacin treats serious infections caused by bacteria. This includes infections in the blood, lungs, bones, joints, brain, skin, and abdomen. It can also treat burns, post-surgery infections, and complicated urinary tract infections.

ceftriaxone

Ceftriaxone treats infections like pneumonia, ear infections, skin infections, and urinary tract infections. It can also treat gonorrhea and pelvic inflammatory disease. Your doctor will test to make sure the infection will respond to this medicine.

How It Works
amikacin

Amikacin belongs to a class of drugs called aminoglycosides. It works by stopping the growth of bacteria. This helps your body fight off the infection.

ceftriaxone

Ceftriaxone belongs to a class of drugs called cephalosporins. It works by stopping the growth of bacteria. This helps your body fight off the infection.

Common Side Effects
amikacin

No common side effects listed.

ceftriaxone
  • Pain, hardness, or tenderness where you got the shot
  • Rash
  • Increased eosinophils (a type of white blood cell)
  • Increased platelets (cells that help blood clot)
  • Decreased white blood cells
FAERS Reports
amikacin
  • Off Label Use 1,908
  • Drug Ineffective 1,673
  • Cough 1,620
  • Dyspnoea 1,556
  • Hospitalisation 1,360
ceftriaxone
  • Off Label Use 3,403
  • Drug Ineffective 3,010
  • Pyrexia 1,677
  • Acute Kidney Injury 1,533
  • Condition Aggravated 1,274
Serious Warnings
amikacin

Amikacin can potentially cause hearing loss and kidney damage. Tell your doctor if you have kidney problems or are taking other medicines that can affect your hearing or kidneys. Your doctor should closely monitor you for hearing and kidney problems during treatment. This drug can also cause muscle weakness or breathing problems, especially if you are also taking anesthesia or certain muscle relaxants.

ceftriaxone

Do not use ceftriaxone if you are allergic to it or other cephalosporin antibiotics. Newborns should not receive ceftriaxone if they are premature or have too much bilirubin in their blood. Ceftriaxone should not be mixed with IV solutions containing calcium, especially in newborns, due to the risk of serious complications.

Pregnancy
amikacin

Tell your doctor if you are pregnant or breastfeeding. Amikacin may harm your unborn baby. It is not known if amikacin passes into breast milk.

ceftriaxone

Tell your doctor if you are pregnant or breastfeeding. It is not known if ceftriaxone will harm your unborn baby. Talk to your doctor about the risks and benefits.

Also Compare — Nearby Drugs

How to Read This amikacin vs ceftriaxone Comparison

amikacin is classified in the Aminoglycoside Antibiotic drug class, while ceftriaxone sits within the Third-Generation Cephalosporin class. Drugs from different classes work through distinct mechanisms, so a head-to-head comparison illustrates trade-offs rather than equivalence. Both drugs are prescription-only, so a licensed provider must authorize use.

Adverse event totals above are pulled from the FDA's Adverse Event Reporting System (FAERS). For these top-ranked reactions alone, amikacin has 8,117 submissions while ceftriaxone has 10,897. Those figures reflect cumulative reporting volume — not per-patient risk — so older, widely dispensed drugs typically look worse on count alone. No direct interaction between these two drugs is listed in our FDA-derived dataset, though co-prescription still warrants pharmacist review. Serious warnings, pregnancy guidance, and contraindications can differ even when indications overlap.

A table cannot substitute for clinical judgment. Effectiveness, tolerability, drug-drug interactions with your other medications, kidney and liver function, pregnancy status, insurance formulary, and price all feed into a decision that only a licensed prescriber can make responsibly. Data here is sourced from FDA Structured Product Labels (SPL) and FAERS, both of which update as manufacturers and clinicians submit new information. This page is for educational purposes only, is not medical advice, and should not be used to self-switch between amikacin and ceftriaxone — always consult your physician or pharmacist first.

Important: This comparison is for informational purposes only. Drug effects vary between individuals. Always consult your doctor or pharmacist for personalized medical advice.