March 2002: adverse event reports received

886 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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886reports received

1,240same month a year earlier-29%

1,232monthly average, preceding 12 months

65.7%concern dogscats 9.9%

FDA's database holds 886 adverse event reports received in March 2002, against 1,240 in the same month a year earlier and a monthly average of 1,232 over the preceding 12 months.

65.7% of the month's reports concern dogs, 9.9% cats and 2.4% horses; the rest concern other species, exposed people, or give no species.

By active ingredient, the drugs named most often were carprofen (155), moxidectin (148) and selamectin (119), and the terms listed most often were vomiting (143), accidental exposure (140) and anorexia (96). 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	155	17.5%
Moxidectin	148	16.7%
Selamectin	119	13.4%
(S) - methoprene	38	4.3%
Ivermectin	34	3.8%
Milbemycin Oxime	32	3.6%
Ivermectin + Pyrantel Pamoate	28	3.2%
Etodolac	21	2.4%
Melarsomine Dihydrochloride	20	2.3%
Tilmicosin Phosphate	17	1.9%
Amoxicillin	16	1.8%
Doramectin	15	1.7%
Ketamine Hydrochloride	14	1.6%
Medetomidine	14	1.6%
Enrofloxacin	13	1.5%

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

Vomiting16.1%143
Accidental exposure[exposure that was not intended]15.8%140
Anorexia[not eating]10.8%96
Depression[dull, quiet or withdrawn]10.4%92
Death9.6%85
No sign[no clinical sign was reported]7.6%67
Unclassifiable adverse event[event that fits no dictionary term]7.3%65
Anaphylaxis[sudden severe allergic-type reaction]6.8%60
Ineffective, heartworm larvae[legacy FDA term: the product did not have the expected effect (heartworm larvae)]6.1%54
Diarrhoea[diarrhea]5.3%47
Elevated alanine aminotransferase (ALT)[a liver enzyme above the normal range]5.2%46
Elevated serum alkaline phosphatase (SAP)[a liver and bone enzyme above the normal range]4.7%42
Ataxia[unsteady, uncoordinated movement]4.6%41
Convulsion[seizure]4.6%41
Death by euthanasia[the animal was euthanized]4.1%36

Single ingredients, pooled

Carprofen17.5%155

Moxidectin16.7%148

Selamectin13.4%119

Ivermectin7%62

Milbemycin Oxime5.1%45

Pyrantel Pamoate4.3%38

(S) - methoprene4.3%38

Etodolac2.4%21

Melarsomine Dihydrochloride2.3%20

Lufenuron2%18

Tilmicosin Phosphate1.9%17

Amoxicillin1.8%16

Species

Dog65.7%582

Cat9.9%88

Horse2.4%21

Other or not given22%195

Questions about March 2002

How many animal drug adverse event reports did FDA receive in March 2002?

886 reports are in the openFDA release of 28 Sep 2026. The same month a year earlier has 1,240.

Which drugs were named most often?

By active ingredient: carprofen (155), moxidectin (148), selamectin (119), (s) - methoprene (38) and ivermectin (34). Brands are masked in the public data.

Which signs were listed most often?

vomiting (143), accidental exposure (140), anorexia (96), depression (92) and death (85).

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.