Pet Drug Reports

Neomycin Sulfate: adverse event reports in all combinations

Active ingredient, alone and in combinations

Brand names with this ingredient: Neo-Cortef, Neo-Delta-Cortef with Tetracaine, Biosol, Panolog, Jenomycin, Neo-synalar, and 22 more.

The openFDA records give the value "MSK" for the brand name and for the manufacturer name of each drug. FDA says that MSK means "masked". So the site cannot count a report for a brand.

Read this first. FDA says this about the data:

An API dataset query result cannot be used to estimate the risk associated with the product or compare one drug or device product with another. When looking at the results, be aware that there is no certainty that the reported drug or device caused the adverse event. This dataset should not be the sole source of information for clinical decision-making or other assumptions about the safety or effectiveness of a product. The adverse event may have been related to an underlying disease, other drugs used at the same time or other non-drug related sources.

FDA Center for Veterinary Medicine publishes these words. Source: Adverse Event Reports for Animal Drugs and Devices, read on . The data have the reports that FDA received through .

This page is not veterinary advice. For an animal that is ill, speak to a veterinarian.

Contacting a veterinarianHow to report to FDA

FDA reports received through . Counts include this ingredient alone and in combinations. Why brand names have no separate count.

From September 1988 to June 2026, FDA received 2,653 adverse event reports that name a drug with neomycin sulfate, alone or in a combination. 8 sets of active ingredients with neomycin sulfate have a drug page.

Of the 2,653 reports, 1,435 (54.1%) are about dogs. 813 reports are about cats (30.6%). In January to March 2026, FDA received 112 reports that name neomycin sulfate, alone or in a combination. The signs that appear in the largest number of the 2,653 reports are "Deafness", "Lethargy" and "Vomiting". A report is not proof that a drug caused a sign.

Reports that name this ingredient rose by 31.5% in the 12 months to June 2026, compared with the 12 months before. Reports for all animal drugs fell by 4.6% in the same periods. The newest months can get more reports in a later update. Reports about cats are 30.6% of the reports that name this ingredient, and 11% of all reports.

Reports in the latest closed quarter

Reports that name neomycin sulfate, by the quarter in which FDA received them
SpeciesJan to Mar 2026Oct to Dec 2025Jan to Mar 2025
All species11211357
Dog375227
Cat495323
Horse000
Other or not given2687

January to March 2026 is the latest closed quarter in the data.

All updatesFeed of updates (RSS)

Drug pages with neomycin sulfate

A report names a drug by its set of active ingredients. Each set with neomycin sulfate that has a drug page is in the table, in order of name. The table has 8 sets.

Drug pages with neomycin sulfate, in order of name, with the reports of each page
Active ingredientsReports, all yearsReports, latest 12 months
Dexamethasone + Neomycin Sulfate + Polymyxin B Sulfate327
Dexamethasone + Neomycin Sulfate + Thiabendazole1,137174
Isoflupredone Acetate + Neomycin Sulfate + Tetracaine Hydrochloride1268
Neomycin Sulfate341
Neomycin Sulfate + Nystatin1000
Neomycin Sulfate + Nystatin + Thiostrepton631
Neomycin Sulfate + Nystatin + Thiostrepton + Triamcinolone Acetonide997150
Neomycin Sulfate + Tetracaine Hydrochloride11121

A report can name more than one set, so the counts of the sets can add to more than the count of the page.

An API dataset query result cannot be used to estimate the risk associated with the product or compare one drug or device product with another.

FDA Center for Veterinary Medicine. Source: Adverse Event Reports for Animal Drugs and Devices

Signs that the reports list

A sign is a coded term from the report. The words in brackets are a plain gloss of the term. The percentage is the share of the 2,653 reports that list the sign. One report can list more than one sign and more than one drug.

The sign that is in the largest number of the reports comes first.

  1. Deafness12.8%340 reports
  2. Lethargy[unusually tired or inactive]12.8%340 reports
  3. Vomiting9.6%255 reports
  4. Lack of efficacy - NOS[the product did not have the expected effect]5.7%150 reports
  5. Diarrhoea[diarrhea]4.8%127 reports
  6. Anorexia[not eating]4.6%122 reports
  7. Elevated alanine aminotransferase (ALT)[a liver enzyme above the normal range]4.4%118 reports
  8. Other abnormal test result NOS[abnormal laboratory result, type not specified]4.1%110 reports
  9. Not eating4.1%108 reports
  10. Loss of hearing4%105 reports
  11. Death by euthanasia[the animal was euthanized]3.8%101 reports
  12. Behavioural disorder NOS[behaviour change, type not specified]3.4%91 reports
  13. Weight loss3.4%90 reports
  14. Ataxia[unsteady, uncoordinated movement]3.2%86 reports
Show the next 16 signs
  1. Decreased appetite3%80 reports
  2. Death2.9%76 reports
  3. Polydipsia[drinking more than usual]2.8%75 reports
  4. Seizure NOS[seizure, type not specified]2.7%72 reports
  5. Polyuria[passing more urine than usual]2.5%67 reports
  6. Vials, Damaged[a product quality report, not a sign in an animal]2.5%67 reports
  7. Skin lesion NOS[NOS: not otherwise specified]2.5%65 reports
  8. Neutrophilia[high neutrophil count]2.3%60 reports
  9. Pruritus[itching]2.2%59 reports
  10. Fever2.2%58 reports
  11. Accidental exposure[exposure that was not intended]2.1%57 reports
  12. Emesis[vomiting]2.1%56 reports
  13. Temporary deafness2.1%56 reports
  14. Elevated serum alkaline phosphatase (SAP)[a liver and bone enzyme above the normal range]2%54 reports
  15. Elevated total bilirubin[bilirubin above the normal range]2%54 reports
  16. Hyperglycaemia[high blood sugar]1.9%50 reports

Download all signs (CSV)

Reports by species

Reports for each month, Jul 2021 to Jun 2026

Dog522 reports. Largest count in one month: 19 (Nov 2025)
Cat457 reports. Largest count in one month: 20 (Oct 2025)
Horse1 report

No chart: no month has 5 or more reports.

Other or not given165 reports. Largest count in one month: 12 (Jan 2026)

The month is the month in which FDA received the report. Each chart has its own scale. FDA says that a report can take 3 to 6 months to reach the public data. The newest months can get more reports in a later update.

Reports by year

  • Dog
  • Cat
  • Horse
  • Other or not given
Reports that name neomycin sulfate, by the year in which FDA received them and by species
YearDogCatHorseOther or not givenAll species
20267275035182
2025150141025316
202411592027234
20238057132170
20226368033164
20219361022176
202012151031203
20199063037190
20189951042192
20176735019121
20168324015122
201556170174
201435180457
201362180585
2012621511492
20112120528
20101020416
20092350230
2008730414
2007620311
200641049
2005520512
200460028
200360039
200240059
2001710816
2000600511
1999510915
1998900110
199770007
1996730010
1995930113
19941500015
19931510016
199260006
199160006
199020002
198910001
198801001

2026 has the reports that FDA received through Jun 2026. Download the years (CSV)

What the reports record

Outcome at the time of the report

  • Recovered/Normal16%425
  • Recovered with Sequela[recovered, with a lasting effect]2.7%71
  • Ongoing21.8%578
  • Died3.7%98
  • Euthanized3.7%97
  • Outcome Unknown31.4%832

An outcome in a report is not proof that the drug caused it. The person who sends the report gives the outcome. Each share is of the 2,653 reports that name neomycin sulfate.

Kind of report

  • Safety issue80.7%2,141
  • Lack of expected effectiveness3.2%86
  • Both safety and lack of expected effectiveness4.3%114
  • Manufacturing or product defect11.6%307
  • Other0.2%5

Age of the animal

  • Under 1 year7.8%207
  • 1 to 3 years14.1%373
  • 4 to 7 years16.7%443
  • 8 to 11 years21.5%571
  • 12 years and over21.6%574
  • Age not given18.3%485

Each share of kind and age is of the 2,653 reports that name neomycin sulfate.

Approved animal drugs with this active ingredient (FDA Green Book)

This section is reference data. It has no report count.

The openFDA records give the value "MSK" for the brand name and for the manufacturer name of each drug. FDA says that MSK means "masked". So the site cannot count a report for a brand.

Brand names

  • Neo-Cortef
  • Neo-Delta-Cortef with Tetracaine
  • Biosol
  • Panolog
  • Jenomycin
  • Neo-synalar
  • Neo-Predef with Tetracaine
  • Tritop
  • Neo-Darbazine Spansule
  • Neo
  • Anaprime
  • Tresaderm Dermatologic

The Green Book has 16 more brand names with this active ingredient. Brand names A to Z

What the Green Book records give

Applications with an approval in force
42
Approved species
Dogs, Cats, Cattle, Sheep, Swine, Goats, Turkeys, Chickens, Equids
Dose forms
Ointment, Liquid (Solution), Type A Medicated Article, Cream, Liquid, Liquid (Suspension), Powder for oral solution, Soluble Powder, Sustained Release Capsule, Powder, Powder for oral suspension, Solution, Tablet
Routes
Oral, Ophthalmic, Topical, Intramuscular, Intravenous
Sale
RX (prescription), VFD (veterinary feed directive), OTC (over the counter)
Earliest approval date in the records

The species, dose forms and routes are the words of the Green Book records for all the applications together. One product can have fewer. The label of a product gives its approved use.

Applications in the Green Book of 2 Nov 2026, pioneer applications (NADA) first
Brand nameActive ingredientsSponsorApproved speciesApplication
Neo-Cortef with TetracaineHydrocortisone Acetate, Neomycin Sulfate, Tetracaine HydrochlorideZoetis Inc.Dogs, CatsNADA 010-524
Neomix 325 Soluble Powder; Neomix AG 325 Soluble PowderNeomycin SulfatePhibro Animal Health Corp.Cattle, Swine, Turkeys, Sheep, GoatsNADA 011-315
Neo-Delta-Cortef with Tetracaine OintmentNeomycin Sulfate, Prednisolone Acetate, Tetracaine HydrochlorideZoetis Inc.Dogs, CatsNADA 011-703
Biosol Sterile Solution; Biosol Sterile Solution 50 mgNeomycin SulfateZoetis Inc.Dogs, CatsNADA 011-953
Panolog OintmentNeomycin Sulfate, Nystatin, Thiostrepton, Triamcinolone AcetonideZoetis Inc.Dogs, CatsNADA 012-258
Jenomycin TabletsAminopropazine Fumarate, Neomycin SulfateIntervet, Inc.DogsNADA 013-181
Neo-synalar CreamFluocinolone Acetonide, Neomycin SulfateBausch Health US, LLCDogs, CatsNADA 015-151
Neo-Predef with Tetracaine PowderIsoflupredone Acetate, Neomycin Sulfate, Tetracaine HydrochlorideZoetis Inc.Dogs, Cats, HorsesNADA 015-433
Neo-Predef with Tetracaine Top. Ointment; Tritop Topical OintmentIsoflupredone Acetate, Neomycin Sulfate, Tetracaine HydrochlorideZoetis Inc.Dogs, Cats, HorsesNADA 030-025
Neo-Darbazine Spansule Capsule No.1; Neo-Darbazine Spansule Capsule No.3Isopropamide Iodide, Neomycin Sulfate, Prochlorperazine DimaleateZoetis Inc.DogsNADA 031-914
Neo Predef Sterile OintmentIsoflupredone Acetate, Neomycin SulfateZoetis Inc.Dogs, Cats, Horses, CattleNADA 034-872
Anaprime Ophthalmic SolutionFlumethasone, Neomycin Sulfate, Polymyxin B SulfateZoetis Inc.Dogs, CatsNADA 038-801
Tresaderm Dermatologic SolutionDexamethasone, Neomycin Sulfate, ThiabendazoleBoehringer Ingelheim Animal Health USA, Inc.Dogs, CatsNADA 042-633
Anaprime Opthakote OphthalmicFlumethasone, Neomycin Sulfate, Polymyxin B SulfateZoetis Inc.DogsNADA 049-725
Optiprime Opthakote Ophthalmic SolutionNeomycin Sulfate, Polymyxin B SulfateZoetis Inc.DogsNADA 049-726
Bacitracin-Neomycin-Polymyxin with Hydrocortisone Acetate Ophthalmic Ointment; Vetropolycin HC Ophthalmic OintmentBacitracin Zinc, Hydrocortisone Acetate, Neomycin Sulfate, Polymyxin B SulfateDechra Veterinary Products LLCDogs, CatsNADA 065-015
Bac-Neo-Poly Ophthalmic Ointment; Vetropolycin Ophthalmic OintmentBacitracin Zinc, Neomycin Sulfate, Polymyxin B SulfateDechra Veterinary Products LLCDogs, CatsNADA 065-016
Mycitracin Sterile Ophthalmic OintmentBacitracin Zinc, Neomycin Sulfate, Polymyxin B SulfateZoetis Inc.Dogs, CatsNADA 065-114
Forte Topical OintmentHydrocortisone Acetate, Neomycin Sulfate, Penicillin G Procaine, Polymyxin B SulfateZoetis Inc.Dogs, CatsNADA 065-119
Cortisporin Veterinary Ophthalmic OintmentBacitracin Zinc, Hydrocortisone, Neomycin Sulfate, Polymyxin B SulfateIntervet, Inc.Dogs, CatsNADA 065-476
Neosporin Ophthalmic OintmentBacitracin Zinc, Neomycin Sulfate, Polymyxin B SulfateIntervet, Inc.Dogs, CatsNADA 065-485
Neo-Delta Cortef Sterile SolutionNeomycin Sulfate, Prednisolone AcetateZoetis Inc.Dogs, CatsNADA 091-534
Neo-Cortef Sterile OintmentHydrocortisone Acetate, Neomycin SulfateZoetis Inc.Dogs, CatsNADA 093-514
Neo-Terramycin 100/100; Neo-Terramycin 100/100D; Neo-Terramycin 50/50; Neo-Terramycin 50/50DNeomycin Sulfate, OxytetracyclinePhibro Animal Health Corp.Cattle, Swine, Chickens, Turkeys, SheepNADA 094-975
Panolog CreamNeomycin Sulfate, Nystatin, Thiostrepton, Triamcinolone AcetonideZoetis Inc.Dogs, CatsNADA 096-676
Neo-Oxy 100/100 MR; Neo-Oxy 50/50Neomycin Sulfate, Oxytetracycline HydrochloridePharmgate Inc.Cattle, Swine, Chickens, Turkeys, SheepNADA 138-939
Animax OintmentNeomycin Sulfate, Nystatin, Thiostrepton, Triamcinolone AcetonideFougera Pharmaceuticals, LLCDogs, CatsNADA 140-847
Derma 4 OintmentNeomycin Sulfate, Nystatin, Thiostrepton, Triamcinolone AcetonideZoetis Inc.Dogs, CatsNADA 140-879
Neomix Ag 325; Neomix 325Neomycin SulfatePhibro Animal Health Corp.Cattle, Swine, Sheep, GoatsNADA 140-976
Derm-Otic OintmentNeomycin Sulfate, Nystatin, Thiostrepton, Triamcinolone AcetonideZoetis Inc.Dogs, CatsNADA 141-003
Neomycin SulfateNeomycin SulfatePhibro Animal Health Corp.Cattle, Swine, Sheep, GoatsANADA 200-046
NeoMed Soluble PowderNeomycin SulfateBimeda Animal Health Ltd.Cattle, Swine, Turkeys, Sheep, GoatsANADA 200-050
Biosol LiquidNeomycin SulfateZoetis Inc.Cattle, Swine, Sheep, GoatsANADA 200-113
Neomycin Oral SolutionNeomycin SulfateHuvepharma EOODCattle, Swine, Sheep, GoatsANADA 200-118
Neo-Sol 50Neomycin SulfateHuvepharma EOODCattle, Swine, Turkeys, Sheep, GoatsANADA 200-130
Neo 200 Oral SolutionNeomycin SulfateHuvepharma EOODCattle, Swine, Sheep, GoatsANADA 200-153
Neosol Soluble PowderNeomycin SulfateDechra Veterinary Products LLCCattle, Swine, Sheep, GoatsANADA 200-235
Animax CreamNeomycin Sulfate, Nystatin, Thiostrepton, Triamcinolone AcetonideFougera Pharmaceuticals, LLCDogs, CatsANADA 200-330
Neomycin Sulfate 325Neomycin SulfateSparhawk Laboratories, Inc.Cattle, Swine, Turkeys, Sheep, GoatsANADA 200-378
Neomycin LiquidNeomycin SulfateSparhawk Laboratories, Inc.Cattle, Swine, Sheep, GoatsANADA 200-379
Neomycin and Polymyxin B Sulfates, and Bacitracin Zinc Ophthalmic OintmentBacitracin Zinc, Neomycin Sulfate, Polymyxin B SulfateDomes Pharma S.A.Dogs, CatsANADA 200-553
Thiabendazole, Dexamethasone, Neomycin Sulfate SolutionDexamethasone, Neomycin Sulfate, ThiabendazoleDechra Veterinary Products LLCDogs, CatsANADA 200-565
Hydeltrone Ointmentapproval withdrawnNeomycin Sulfate, Prednisolone Sodium PhosphateBoehringer Ingelheim Animal Health USA Inc.Dogs, CatsNADA 011-437
Neo-Aristovet Ointmentapproval withdrawnNeomycin Sulfate, Triamcinolone AcetonideBayer HealthCare LLC, Animal Health DivisionNot in the list of major speciesNADA 030-045
Tylan Plus Neomycin Eye Powderapproval withdrawnNeomycin Sulfate, TylosinElanco Animal Health, A Division of Eli Lilly & Co.Not in the list of major speciesNADA 031-962
Liquisone F with Cerumeneapproval withdrawnHexamethyltetracosane, Neomycin Sulfate, Prednisolone, TetracaineEvsco Pharmaceuticals, An Affiliate of IGI, Inc.Dogs, CatsNADA 032-322
Neomycane Ophthalmic Ointmentapproval withdrawnNeomycin SulfateEvsco Pharmaceuticals, An Affiliate of IGI, Inc.Dogs, CatsNADA 044-655
Optisoneapproval withdrawnNeomycin Sulfate, Prednisolone AcetateEvsco Pharmaceuticals, An Affiliate of IGI, Inc.Dogs, CatsNADA 045-288
DERMA-VET Ointmentapproval withdrawnNeomycin Sulfate, Nystatin, Thiostrepton, Triamcinolone AcetonideMed-Pharmex, Inc.Dogs, CatsNADA 140-810
Derm-Otic Ointmentapproval withdrawnNeomycin Sulfate, Nystatin, Thiostrepton, Triamcinolone AcetonideBiocraft Laboratories, Inc.Dogs, CatsNADA 140-889
Derma-Vet Creamapproval withdrawnNeomycin Sulfate, Nystatin, Thiostrepton, Triamcinolone AcetonideMed-Pharmex, Inc.Dogs, CatsANADA 200-245
Neosol-Oralapproval withdrawnNeomycin SulfateMed-Pharmex, Inc.Cattle, Swine, Turkeys, Sheep, GoatsANADA 200-289

FDA pages for this ingredient

The site checked these addresses on . The links open in a new tab.

Cite this page

Pet Drug Reports. Neomycin Sulfate, all combinations: adverse event reports that FDA received. https://petdrugreports.com/ingredient/neomycin-sulfate/ Source: FDA Center for Veterinary Medicine, openFDA Animal and Veterinary adverse event reports, export of . Reports received through .

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Where the data come from

The counts come from the openFDA Animal and Veterinary adverse event files, export of 30 Oct 2026. The files have the reports that the FDA Center for Veterinary Medicine received through 26 Jun 2026. The files mask brand and manufacturer names. The site counts a drug by the active ingredients that each record gives, and gives no count to a brand, an application or a company. Ingredient names and the lists of approved products follow the FDA Green Book of 2 Nov 2026. Ingredient names follow the Green Book, with salts and forms as FDA lists them.

The site does not publish report text, lot numbers or details of a reporter. FDA's record is the authority. See how the site counts reports, the data sources and the corrections page.

Questions about these reports

Which brand are these reports about?

The openFDA records give the value "MSK" for the brand name and for the manufacturer name of each drug. FDA says that MSK means "masked". So the site cannot count a report for a brand. The Green Book section of this page lists brand names with this active ingredient.

Do the reports show that the ingredient caused the signs?

No. A report can name more than one drug, and a drug can have more than one active ingredient. FDA states this about the data.

When looking at the results, be aware that there is no certainty that the reported drug or device caused the adverse event.

The adverse event may have been related to an underlying disease, other drugs used at the same time or other non-drug related sources.

FDA Center for Veterinary Medicine. Source: Adverse Event Reports for Animal Drugs and Devices

How many reports did FDA receive in the latest 12 months?

FDA received 359 reports in the 12 months to June 2026. It received 273 reports in the 12 months before. FDA says that a report can take 3 to 6 months to reach the public data. The newest months can get more reports in a later update.

What kinds of report are in the count?

Of the 2,653 reports received from September 1988 to June 2026, 80.7% are about a safety issue only. 7.5% are about a lack of expected effectiveness, alone or with a safety issue. 11.6% are about a defect of the product or its package.