An authorized generic of Coly-Mycin M was sold before, but it isn’t sold now. Ask your pharmacist whether a regular generic (colistimethate sodium) is available.
Source: FDA, updated October 30, 2026
How to pay the least
Ask for the cash price
Generic colistimethate
No pharmacy we check posts a price for it.
- Ask your pharmacy for the cash price of generic colistimethate.Find pharmacies near you
- Ask one or two other pharmacies too. Cash prices for the same generic can differ a lot from store to store.
A regular generic has the same active ingredient as Coly-Mycin M, and the FDA requires it to work the same way.
Compare every option
Question
Brand nameColy-Mycin M
Authorized genericcolistimethate
Regular genericcolistimethate
What you’d pay
Cash priceAsk the pharmacyUsually the highest price
Not soldNo longer sold
Cash priceAsk the pharmacyUsually the lowest
Same as Coly-Mycin M?
The original
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Same active ingredientFillers and dyes can differ
Details for each option
Details for
Brand nameNo maker’s card
We didn’t find a savings card or cash price from Coly-Mycin M’s maker. Ask the pharmacy for Coly-Mycin M’s cash price. With insurance, ask what your plan charges.
Authorized genericNot sold now
Regular genericWho makes it
4 companies sell a generic of Coly-Mycin M that the FDA rates a substitute. A pharmacy fills whichever one it stocks. To get a certain maker, ask for it by name; most pharmacies can order it in a day or two.
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Avet Pharmaceuticals150 mg/4 mL
Product page on avetpharma.com
How it looks, what’s in it, NDCs
150 mg/4 mL
Package NDC Carton of 4 mL 23155-193-31 Carton of 48 mL 23155-193-41 Inactive ingredients: water
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Fresenius Kabi150 mg/2 mL
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Hikma Pharmaceuticals150 mg
Made by Xellia Pharmaceuticals Aps
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Xellia Pharmaceuticals150 mg
Packages and NDCs
150 mg
Package NDC Carton of 1 70594-023-09 150 mg
Package NDC Vial of 1 70594-023-01 Carton of 12 70594-023-04
Who sells it: FDA and Medicaid records, updated weekly. Each maker’s page, card and program is from its own site.
What it’s used for
What the FDA label says
Coly-Mycin M Parenteral is indicated for the treatment of acute or chronic infections due to sensitive strains of certain gram-negative bacilli. It is particularly indicated when the infection is caused by sensitive strains of Pseudomonas aeruginosa. This antibiotic is not indicated for infections due to Proteus or Neisseria. Coly-Mycin M Parenteral has proven clinically effective in treatment of infections due to the following gram-negative organisms: Enterobacter aerogenes, Escherichia coli, Klebsiella pneumoniae and Pseudomonas aeruginosa.
Coly-Mycin M Parenteral may be used to initiate therapy in serious infections that are suspected to be due to gram-negative organisms and in the treatment of infections due to susceptible gram-negative pathogenic bacilli.
To reduce the development of drug-resistant bacteria and maintain the effectiveness of Coly-Mycin M and other antibacterial drugs, Coly-Mycin M should be used only to treat or prevent infections that are proven or strongly suspected to be caused by susceptible bacteria. When culture and susceptibility information are available, they should be considered in selecting or modifying antibacterial therapy. In the absence of such data, local epidemiology and susceptibility patterns may contribute to the empiric selection of therapy.
Source: the FDA label for Coly-Mycin M (Par Health USA, LLC), June 8, 2026. Full label on DailyMed
Prices change: confirm with the pharmacy before you fill. drugalt.com/drug/coly-mycin-m/