July 1998: adverse event reports received

530 reports in the openFDA release of 28 Sep 2026

Read this first · FDA's caveat, in its words

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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530reports received

397same month a year earlier+34%

501monthly average, preceding 12 months

52.3%concern dogscats 13%

FDA's database holds 530 adverse event reports received in July 1998, against 397 in the same month a year earlier and a monthly average of 501 over the preceding 12 months.

52.3% of the month's reports concern dogs, 13% cats and 10.4% horses; the rest concern other species, exposed people, or give no species.

By active ingredient, the drugs named most often were carprofen (128), moxidectin (63) and lufenuron (35), and the terms listed most often were death (85), accidental exposure (81) and depression (64). 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
Carprofen	128	24.2%
Moxidectin	63	11.9%
Lufenuron	35	6.6%
Lufenuron + Milbemycin Oxime	34	6.4%
Melarsomine Dihydrochloride	23	4.3%
Milbemycin Oxime	16	3%
Pyrantel Pamoate	15	2.8%
Enrofloxacin	14	2.6%
Tiletamine Hydrochloride + Zolazepam Hydrochloride	13	2.5%
Amoxicillin	11	2.1%
Ivermectin	11	2.1%
Tilmicosin Phosphate	10	1.9%
Doramectin	8	1.5%
Ketamine Hydrochloride	8	1.5%
Oxibendazole	7	1.3%

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

Death16%85
Accidental exposure[exposure that was not intended]15.3%81
Depression[dull, quiet or withdrawn]12.1%64
No sign[no clinical sign was reported]11.5%61
Vomiting11.1%59
Ataxia[unsteady, uncoordinated movement]6.6%35
Anorexia[not eating]6.4%34
Unclassifiable adverse event[event that fits no dictionary term]6.4%34
Death by euthanasia[the animal was euthanized]4.9%26
Injection site swelling[swelling where the injection was given]4.9%26
Diarrhoea[diarrhea]4.3%23
Recumbency[lying down and unable or unwilling to rise]3.6%19
Elevated serum alkaline phosphatase (SAP)[a liver and bone enzyme above the normal range]3.4%18
Convulsion[seizure]3.2%17
Fever3.2%17

Single ingredients, pooled

Carprofen24.2%128

Lufenuron13%69

Moxidectin11.9%63

Milbemycin Oxime9.4%50

Melarsomine Dihydrochloride4.3%23

Pyrantel Pamoate4%21

Ivermectin3%16

Enrofloxacin2.6%14

Tiletamine Hydrochloride2.5%13

Zolazepam Hydrochloride2.5%13

Amoxicillin2.1%11

Tilmicosin Phosphate1.9%10

Species

Dog52.3%277

Cat13%69

Horse10.4%55

Other or not given24.3%129

Questions about July 1998

How many animal drug adverse event reports did FDA receive in July 1998?

530 reports are in the openFDA release of 28 Sep 2026. The same month a year earlier has 397.

Which drugs were named most often?

By active ingredient: carprofen (128), moxidectin (63), lufenuron (35), lufenuron + milbemycin oxime (34) and melarsomine dihydrochloride (23). Brands are masked in the public data.

Which signs were listed most often?

death (85), accidental exposure (81), depression (64), no sign (61) and vomiting (59).

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 30 Sep 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.