coly-mycin s
Coly-Mycin S (Colistin Sulfate) is a medication supplied as a suspension and suspension/drops.
Colistin Sulfate · by Parke Davis
Key facts
- Active ingredient
- Colistin Sulfate
- Form
- Suspension, Drops
- Strength
- Colistin Sulfate EQ 25MG BASE/5ML
- Type
- Prescription (Rx)
- Brand or generic
- Brand-name
- Manufacturer
- Parke Davis
- FDA application
- NDA050355
- Availability
- Discontinued (per FDA)
Dosage forms
Suspension and Drops
The forms currently marketed in the U.S., per the FDA National Drug Code Directory.
Ways to save
Ask for the generic
Same active ingredient, far cheaper. Is there a generic? →
Request a 90-day supply
Bulk fills usually lower the per-dose price vs monthly refills.
Use copay cards
Manufacturer copay cards & patient-assistance programs — especially for brand drugs.
Compare alternatives
A same-class option may cost less. See alternatives →
Frequently asked questions
- Is there a coupon or discount for Coly-Mycin S?
- pharmaranks is an independent ratings site, not a pharmacy — we don't issue coupons or sell Coly-Mycin S. To pay less, ask your prescriber or pharmacist whether a generic equivalent exists, check the manufacturer's copay/savings card and patient-assistance program, and compare a pharmacy discount card against your insurance copay. Prices vary by pharmacy, insurance, and location, so always confirm at the counter. This is general reference, not medical or financial advice.
- Who makes Coly-Mycin S?
- Coly-Mycin S is marketed by Parke Davis. You can see Parke Davis's full profile, rating, and other products on pharmaranks.
- Is Coly-Mycin S a brand-name or generic drug?
- Coly-Mycin S is a brand-name product with the active ingredient Colistin Sulfate.
- Is Coly-Mycin S available over the counter?
- No. Coly-Mycin S is a prescription (Rx) medication in the US — you need a prescription from a licensed clinician (in person or via telehealth); it isn't sold over the counter. For some conditions there are OTC alternatives — ask your pharmacist.
- What forms does Coly-Mycin S come in?
- Coly-Mycin S is currently marketed as suspension and drops, per the FDA's National Drug Code Directory.
- Is Coly-Mycin S FDA-registered?
- Coly-Mycin S is on record with the U.S. FDA under application number NDA050355. You can verify this on its official FDA label.
Information is sourced from public FDA regulatory data. Provided for general reference only — not medical advice. Always consult a licensed professional and the current prescribing information.
What people report to the FDA about COLISTIN SULFATE
The FDA Adverse Event Reporting System (FAERS) collects reports from patients and clinicians. It holds 508 reports naming COLISTIN SULFATE — the active ingredient in Coly-Mycin S, and the FDA flagged 88% of those reports as serious. The effects reported most often — leaving out reports about overdose, misuse or the condition being treated, which dominate the raw list for common medicines:
- renal failure acute45 reports
- infection35 reports
- pyrexia26 reports
- sepsis26 reports
- blood creatinine increased21 reports
- septic shock20 reports
- cystic fibrosis19 reports
- infective pulmonary exacerbation of cystic fibrosis18 reports
Read these as a signal, not a rate. A report does not mean COLISTIN SULFATE caused the effect — anyone can file one, and many describe people taking several medicines for several conditions. Crucially there is no denominator: FAERS does not record how many people took the drug, so these counts cannot be turned into “X% of patients” — a bigger number often just means a more widely used or more talked-about drug. Duplicates exist, and publicity drives reporting. For what is actually established, read the FDA label.
Source: openFDA drug/event (FAERS), retrieved September 25, 2026.
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