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CAYSTON vs COACTIN

Independent side-by-side comparison.

Rated against independent regulatory sources·Last updated August 23, 2026·How we rate

Possible drug interaction. CAYSTON and COACTIN are different prescription medicines. Combining or switching between them can cause interactions — talk to a pharmacist or prescriber before making changes. This page is not medical advice.

Rating

70/100
New

Pharmacy pays

Type

RX
RX

Active ingredient

AZTREONAM
AMDINOCILLIN

Dosage forms

Kit
Injectable

Drug class

Boxed warning

None
None

Treats

Cellulitis, Endometritis, Pseudomonas Infections
Bacterial Infections, Escherichia Coli Infections, Klebsiella Infections

Get caystonhigher-rated option

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Frequently asked questions

What is the difference between Cayston and Coactin?

Cayston contains Aztreonam, while Coactin contains Amdinocillin — they have different active ingredients.

Ratings are based on FDA regulatory (recall-safety) data. This comparison is for general reference only — not medical advice. Always consult a licensed professional before choosing or switching a medication.