October 1996: adverse event reports received

362 reports in the openFDA release of 28 Sep 2026

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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

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362reports received

158same month a year earlier+129%

248monthly average, preceding 12 months

46.1%concern dogscats 9.4%

FDA's database holds 362 adverse event reports received in October 1996, against 158 in the same month a year earlier and a monthly average of 248 over the preceding 12 months.

46.1% of the month's reports concern dogs, 9.4% cats and 9.1% horses; the rest concern other species, exposed people, or give no species.

By active ingredient, the drugs named most often were lufenuron (62), flunixin meglumine (36) and cyclosporine (22), and the terms listed most often were death (55), vomiting (44) and diarrhoea (28). Report volume has a seasonal shape, with more reports in the warmer months when parasite products are in heavier use.

The months around it

Drugs named most often, by active ingredient

Active ingredients recorded for the drug	Reports	Share of the month's reports
Lufenuron	62	17.1%
Flunixin Meglumine	36	9.9%
Cyclosporine	22	6.1%
Pyrantel Pamoate	20	5.5%
Tiletamine Hydrochloride + Zolazepam Hydrochloride	15	4.1%
Ketamine Hydrochloride	14	3.9%
Ormetoprim + Sulfadimethoxine	14	3.9%
Tilmicosin Phosphate	14	3.9%
Ivermectin	10	2.8%
Oxibendazole	10	2.8%
Ivermectin + Pyrantel Pamoate	6	1.7%
Morantel Tartrate	6	1.7%
Butorphanol Tartrate	5	1.4%
Milbemycin Oxime	5	1.4%
Altrenogest	4	1.1%

Ordered by report count, which follows how widely each drug was in use. FDA states that these data cannot be used to estimate risk or to compare one product with another. Brand and manufacturer names are masked by FDA in these records.

Signs listed most often

Death15.2%55
Vomiting12.2%44
Diarrhoea[diarrhea]7.7%28
Depression[dull, quiet or withdrawn]6.1%22
Unclassifiable adverse event[event that fits no dictionary term]6.1%22
Anorexia[not eating]5.2%19
Pruritus[itching]4.7%17
Ineffective, kcs[legacy FDA term: the product did not have the expected effect (kcs)]4.4%16
Accidental exposure[exposure that was not intended]4.1%15
Fever3.6%13
Injection site swelling[swelling where the injection was given]3.6%13
Ataxia[unsteady, uncoordinated movement]3.3%12
No sign[no clinical sign was reported]3.3%12
Injection site pain[pain where the injection was given]2.8%10
Abdominal pain2.5%9

Single ingredients, pooled

Lufenuron17.1%62

Flunixin Meglumine9.9%36

Pyrantel Pamoate7.5%27

Cyclosporine6.1%22

Ivermectin4.4%16

Tiletamine Hydrochloride4.1%15

Zolazepam Hydrochloride4.1%15

Ketamine Hydrochloride3.9%14

Ormetoprim3.9%14

Sulfadimethoxine3.9%14

Tilmicosin Phosphate3.9%14

Oxibendazole2.8%10

Species

Dog46.1%167

Cat9.4%34

Horse9.1%33

Other or not given35.4%128

Questions about October 1996

How many animal drug adverse event reports did FDA receive in October 1996?

362 reports are in the openFDA release of 28 Sep 2026. The same month a year earlier has 158.

Which drugs were named most often?

By active ingredient: lufenuron (62), flunixin meglumine (36), cyclosporine (22), pyrantel pamoate (20) and tiletamine hydrochloride + zolazepam hydrochloride (15). Brands are masked in the public data.

Which signs were listed most often?

death (55), vomiting (44), diarrhoea (28), depression (22) and unclassifiable adverse event (22).

Can the count for a month still change?

Yes. FDA posts reports quarterly with a delay of three to six months, so the newest months are incomplete and usually grow in later releases. Older months change little.

Does a busy month mean something went wrong that month?

Not by itself. The date is when FDA received the report, not when the event happened, and volume follows season, product launches and publicity. FDA states that "there is no certainty that the reported drug or device caused the adverse event" and that the event "may have been related to an underlying disease, other drugs used at the same time or other non-drug related sources."

Where this comes from. Counts are built from the openFDA Animal & Veterinary adverse event bulk files released 28 Sep 2026, which hold reports FDA's Center for Veterinary Medicine received through 31 Mar 2026. openFDA masks brand and manufacturer names in these files, so drugs are counted by the active ingredients each record discloses and no figure is attributed to a brand, application or company. Ingredient names, and the separate reference lists of approved products, follow the FDA Green Book as of 1 Oct 2026. The month is the date FDA first received the report, not the date of the event. No report text, lot numbers or reporter details are published. See the methodology and sources; FDA's record is authoritative, and corrections are handled within five working days.