August 1997: adverse event reports received

325 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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325reports received

427same month a year earlier-24%

326monthly average, preceding 12 months

42.5%concern dogscats 8.9%

FDA's database holds 325 adverse event reports received in August 1997, against 427 in the same month a year earlier and a monthly average of 326 over the preceding 12 months.

42.5% of the month's reports concern dogs, 8.9% cats and 3.7% horses; the rest concern other species, exposed people, or give no species.

By active ingredient, the drugs named most often were betamethasone valerate + clotrimazole + gentamicin sulfate (76), doramectin (42) and lufenuron (26), and the terms listed most often were deafness (67), death (36) and pruritus (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
Betamethasone Valerate + Clotrimazole + Gentamicin Sulfate	76	23.4%
Doramectin	42	12.9%
Lufenuron	26	8%
Ivermectin	22	6.8%
Penicillin G Procaine	14	4.3%
Tiletamine Hydrochloride + Zolazepam Hydrochloride	11	3.4%
Amoxicillin	10	3.1%
Sulfadimethoxine	10	3.1%
Melarsomine Dihydrochloride	7	2.2%
Monensin	7	2.2%
Tilmicosin Phosphate	7	2.2%
Cefadroxil	5	1.5%
Cephapirin Benzathine	5	1.5%
Famphur	4	1.2%
Milbemycin Oxime	4	1.2%

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

Deafness20.6%67
Death11.1%36
Pruritus[itching]8.6%28
Depression[dull, quiet or withdrawn]8.3%27
Anorexia[not eating]5.2%17
Ataxia[unsteady, uncoordinated movement]4.9%16
Ineffective, lice biting[legacy FDA term: the product did not have the expected effect (lice biting)]4.6%15
Vomiting4%13
Alteration of milk quality3.7%12
Fever3.7%12
Alopecia NOS[hair loss, type not specified]3.4%11
Accidental exposure[exposure that was not intended]3.1%10
Convulsion[seizure]3.1%10
Containers, Damaged[a product quality report, not a sign in an animal]2.8%9
Injection site swelling[swelling where the injection was given]2.8%9

Single ingredients, pooled

Betamethasone Valerate23.4%76

Clotrimazole23.4%76

Gentamicin Sulfate23.4%76

Doramectin12.9%42

Lufenuron8%26

Ivermectin7.4%24

Penicillin G Procaine4.3%14

Tiletamine Hydrochloride3.4%11

Zolazepam Hydrochloride3.4%11

Amoxicillin3.1%10

Sulfadimethoxine3.1%10

Melarsomine Dihydrochloride2.2%7

Species

Dog42.5%138

Cat8.9%29

Horse3.7%12

Other or not given44.9%146

Questions about August 1997

How many animal drug adverse event reports did FDA receive in August 1997?

325 reports are in the openFDA release of 28 Sep 2026. The same month a year earlier has 427.

Which drugs were named most often?

By active ingredient: betamethasone valerate + clotrimazole + gentamicin sulfate (76), doramectin (42), lufenuron (26), ivermectin (22) and penicillin g procaine (14). Brands are masked in the public data.

Which signs were listed most often?

deafness (67), death (36), pruritus (28), depression (27) and anorexia (17).

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.