Pet Drug Reports

Betamethasone Valerate + Gentamicin Sulfate (Gentocin, Topagen): adverse event reports that FDA received

Combination of 2 active ingredients

Also sold as: Gentocin, Topagen, GB.

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

From March 1987 to June 2026, FDA received 386 adverse event reports that name this drug. Its active ingredients are betamethasone valerate and gentamicin sulfate. Of the 386 reports, 239 (61.9%) are about dogs. 43 reports are about cats (11.1%).

In January to March 2026, FDA received no reports that name this drug. The signs that appear in the largest number of the 386 reports are "Vomiting", "Lethargy" and "Deafness". A report is not proof that a drug caused a sign.

Fewer than 20 reports named this drug in the 12 months before June 2026, so this page gives no change. Reports about dogs are 61.9% of the reports that name this drug, and 72.6% of all reports.

Search engines list a drug page with 500 reports or more in all years. The page also needs 30 reports or more in the 12 months to June 2026. This page is under one of these numbers. The site keeps the page and keeps it out of search engines.

Since the last update of the FDA data

The latest update of the FDA data, recorded on , changed no count of this page.

January to March 2026 is the latest closed quarter in the data. In that quarter FDA received 0 reports that name betamethasone valerate + gentamicin sulfate: 0 dog, 0 cat, 0 horse, 0 other or not given.

All updatesFeed of updates (RSS)

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 386 reports that list the sign. One report can list more than one sign.

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

  1. Vomiting7.8%30 reports
  2. Lethargy[unusually tired or inactive]7%27 reports
  3. Deafness6.7%26 reports
  4. Diarrhoea[diarrhea]5.7%22 reports
  5. Lack of efficacy - NOS[the product did not have the expected effect]5.7%22 reports
  6. Death by euthanasia[the animal was euthanized]4.7%18 reports
  7. Emesis[vomiting]4.1%16 reports
  8. Anorexia[not eating]3.9%15 reports
  9. Dispenser, Abnormal[a product quality report, not a sign in an animal]3.9%15 reports
  10. Other abnormal test result NOS[abnormal laboratory result, type not specified]3.9%15 reports
  11. Applicator, Abnormal[a product quality report, not a sign in an animal]3.6%14 reports
  12. Decreased appetite3.6%14 reports
  13. Ataxia[unsteady, uncoordinated movement]3.4%13 reports
  14. Behavioural disorder NOS[behaviour change, type not specified]3.4%13 reports
Show the next 16 signs
  1. Weight loss3.1%12 reports
  2. Containers, Damaged[a product quality report, not a sign in an animal]2.8%11 reports
  3. Depression[dull, quiet or withdrawn]2.8%11 reports
  4. Product Defect, General[a product quality report, not a sign in an animal]2.8%11 reports
  5. Pruritus[itching]2.8%11 reports
  6. Seizure NOS[seizure, type not specified]2.8%11 reports
  7. Containers, Leaking[a product quality report, not a sign in an animal]2.6%10 reports
  8. Defect Unknown/Not Specified[a product quality report, not a sign in an animal]2.6%10 reports
  9. Anaemia NOS[low red blood cell count]2.3%9 reports
  10. Not eating2.3%9 reports
  11. Polydipsia[drinking more than usual]2.3%9 reports
  12. Polyuria[passing more urine than usual]2.3%9 reports
  13. Accidental exposure[exposure that was not intended]2.1%8 reports
  14. Application site erythema[reddened skin where the product was applied]2.1%8 reports
  15. Bottles, Damaged[a product quality report, not a sign in an animal]2.1%8 reports
  16. Elevated blood urea nitrogen (BUN)[a kidney value above the normal range]2.1%8 reports

The list shows 30 of 506 coded signs. A report is not proof that a drug caused a sign. Download all signs (CSV)

Reports by species

  • Dog61.9%239
  • Cat11.1%43
  • Human exposure2.3%9
  • Horse0.3%1
  • Other0.3%1

The share is of all 386 reports that name betamethasone valerate + gentamicin sulfate. The other reports give a different species or no species.

Reports for each month, Jul 2021 to Jun 2026

Dog25 reports

No chart: no month has 5 or more reports.

Cat4 reports

No chart: no month has 5 or more reports.

Horse1 report

No chart: no month has 5 or more reports.

Other or not given45 reports. Largest count in one month: 5 (Sep 2021)

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 betamethasone valerate + gentamicin sulfate, by the year in which FDA received them and by species
YearDogCatHorseOther or not givenAll species
202602068
202570007
202431127
2023200810
20227001825
202110302033
20201230924
201913101024
20181420420
20171410318
20161820020
20151310014
20141200012
20132420026
20121320015
201120002
201011002
200910023
200810001
200710001
200610001
200510012
200430003
200360017
200220024
2001850316
200010401024
19991040216
199822004
199732016
199611002
199410001
199342006
199260006
199111002
199030003
198940004
198830014
198721003

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/Normal11.9%46
  • Recovered with Sequela[recovered, with a lasting effect]1.6%6
  • Ongoing17.9%69
  • Died3.6%14
  • Euthanized3.4%13
  • Outcome Unknown10.9%42

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 386 reports that name betamethasone valerate + gentamicin sulfate.

A report about more than one animal can have more than one outcome.

Kind of report

  • Safety issue67.9%262
  • Lack of expected effectiveness1.8%7
  • Both safety and lack of expected effectiveness4.7%18
  • Manufacturing or product defect25.4%98
  • Other0.3%1

184 reports say if the event was serious. 41.8% of them have the serious flag. The person who sends the report sets the flag.

Show age, weight, breed and route

Age of the animal

  • Under 1 year6%23
  • 1 to 3 years17.6%68
  • 4 to 7 years19.7%76
  • 8 to 11 years15.5%60
  • 12 years and over9.6%37
  • Age not given31.6%122

Weight of the animal

  • Under 5 kg (11 lb)10.6%41
  • 5 to 9.9 kg (11 to 22 lb)15.3%59
  • 10 to 24.9 kg (22 to 55 lb)13.5%52
  • 25 to 44.9 kg (55 to 99 lb)16.1%62
  • 45 kg and over (99 lb and over)4.7%18
  • Weight not given39.9%154

Breed, where the report gives one breed

A breed with many animals has many reports.

Route in the report

  • Topical45.9%177
  • Auricular (Otic)10.4%40
  • Ophthalmic7.5%29
  • Oral1.3%5
  • Intraocular0.5%2
  • Intraepidermal0.3%1

Each bar is on a scale of 0 to 100%.

Approved animal drugs with these active ingredients (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

  • Gentocin
  • Topagen
  • GB

What the Green Book records give

Applications with an approval in force
6
Approved species
Dogs, Cats
Dose forms
Spray, Liquid (Solution), Ointment
Routes
Topical
Sale
RX (prescription)
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
Gentocin Otic SolutionBetamethasone Valerate, Gentamicin SulfateIntervet, Inc.Dogs, CatsNADA 046-821
Topagen OintmentBetamethasone Valerate, Gentamicin SulfateIntervet, Inc.DogsNADA 113-231
Gentocin Topical SprayBetamethasone Valerate, Gentamicin SulfateIntervet, Inc.DogsNADA 132-338
GB Topical SprayBetamethasone Valerate, Gentamicin SulfateDechra Veterinary Products LLCDogsANADA 200-388
Gentamicin Sulfate Topical SprayBetamethasone Valerate, Gentamicin SulfateFirst Priority, Inc.DogsANADA 200-415
Gentamicin Topical SprayBetamethasone Valerate, Gentamicin SulfateSparhawk Laboratories, Inc.DogsANADA 200-416
VET BETA-GENapproval withdrawnBetamethasone Valerate, Gentamicin SulfateMed-Pharmex, Inc.Dogs, CatsANADA 200-183
Betagen Topical Sprayapproval withdrawnBetamethasone Valerate, Gentamicin SulfateMed-Pharmex, Inc.DogsANADA 200-188

Other pages with one of these ingredients

A report names a drug by its set of active ingredients. Each set has its own page. The list is in order of name.

Next in the A to Z list

All drugs by active ingredient. Brand names A to Z

FDA pages for this drug

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

Cite this page

Pet Drug Reports. Betamethasone Valerate + Gentamicin Sulfate: adverse event reports that FDA received. https://petdrugreports.com/drug/betamethasone-valerate-gentamicin-sulfate/ Source: FDA Center for Veterinary Medicine, openFDA Animal and Veterinary adverse event reports, export of . Reports received through .

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. The site does not use the application number that a record has.

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 the brand names with these active ingredients.

Do the reports show that the drug caused the signs?

No. 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 12 reports in the 12 months to June 2026. It received 6 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 386 reports received from March 1987 to June 2026, 67.9% are about a safety issue only. 6.5% are about a lack of expected effectiveness, alone or with a safety issue. 25.4% are about a defect of the product or its package.