Tachycardia: in adverse event reports for animal drugs

Clinical sign, a VeDDRA term

In plain words: fast heart rate.

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 2 Oct 2026. The data have the reports that FDA received through 26 Jun 2026.

This page is not veterinary advice. For an animal that is ill, speak to a veterinarian.

Contacting a veterinarian How to report to FDA

From March 1987 to June 2026, FDA received 6,860 adverse event reports for animal drugs that list this sign. That is 0.5% of the 1,378,761 reports that FDA received from January 1987 to June 2026. In the 12 months to June 2026, FDA received 333 reports that list this sign.

Of the 6,860 reports, 75% are about dogs. A report can list more than one sign and more than one drug. A report is not proof that a drug caused a sign.

By number of reports in all years, this sign is number 94 of 1,149 clinical signs with a page. Reports that list this sign fell by 17.2% in the 12 months to June 2026, compared with the 12 months before. Reports for all animal drugs fell by 4.6% in the same periods. The newest months can get more reports in a later update. Reports about cats are 15.5% of the reports that list this sign, and 11% of all reports.

Drug pages with reports that list this sign

The table has every drug page with 20 or more reports that list this sign, in order of name. No count decides which drug is in the table. The table has 111 drug pages.

Show the 111 drug pages

Drug pages with 20 or more reports that list this sign, in order of name
Active ingredients	Reports that list the sign
(S) - methoprene	34
Acepromazine Maleate	89
Afoxolaner	176
Afoxolaner + Moxidectin + Pyrantel Pamoate	21
Alfaxalone	52
Amoxicillin	57
Amoxicillin + Clavulanate Potassium	29
Amoxicillin Trihydrate + Clavulanate Potassium	33
Atipamezole Hydrochloride	171
Atropine	54
Bedinvetmab	131
Bupivacaine	21
Buprenorphine	198
Butorphanol Tartrate	274
Capromorelin	32
Carprofen	511
Cefovecin sodium	159
Cefpodoxime proxetil	45
Ceftiofur Crystalline Free Acid	45
Cephalexin	21
Clindamycin	21
Clomipramine Hydrochloride	55
Cyclosporine	111
Deracoxib	305
Desoxycorticosterone Pivalate	26
Detomidine Hydrochloride	54
Dexamethasone	117
Dexamethasone Sodium Phosphate	50
Dexmedetomidine	76
Dexmedetomidine hydrochloride	172
Dextrose	29
Diazepam	46
Diphenhydramine	164
Doxycycline	72
Emodepside + Praziquantel	38
Enalapril Maleate	23
Enrofloxacin	96
Eprinomectin + Esafoxolaner + Praziquantel	22
Famotidine	93
Febantel + Praziquantel + Pyrantel Pamoate	23
Fenbendazole	22
Fentanyl	33
Firocoxib	115
Flunixin Meglumine	31
Fluoxetine hydrochloride	29
Fluralaner	200
Frunevetmab	41
Furosemide	61
Gabapentin	171
Grapiprant	35
Hydromorphone	76
Imidacloprid + Moxidectin	126
Insulin	30
Isoflurane	204
Ivermectin	130
Ivermectin + Praziquantel	42
Ivermectin + Praziquantel + Pyrantel Pamoate	32
Ivermectin + Pyrantel Pamoate	204
Ketamine Hydrochloride	139
Levothyroxine sodium	30
Lidocaine	40
Lotilaner	42
Lufenuron + Milbemycin Oxime	72
Maropitant	405
Medetomidine	64
Medetomidine hydrochloride + Vatinoxan hydrochloride	20
Melarsomine Dihydrochloride	385
Meloxicam	122
Methadone	32
Methimazole	20
Methylprednisolone Acetate	28
Metoclopramide	26
Metronidazole	61
Midazolam	110
Milbemycin Oxime	88
Milbemycin Oxime + Praziquantel	55
Milbemycin Oxime + Spinosad	211
Mirtazapine	35
Monensin	20
Moxidectin	657
Nitenpyram	130
Oclacitinib	183
Omeprazole	41
Ondansetron	59
Pimobendan	184
Polysulfated Glycosaminoglycan	34
Prednisolone	30
Prednisone	117
Propofol	190
Pyrantel Pamoate	48
Pyrantel Pamoate + Sarolaner	95
Robenacoxib	47
Ropinirole	27
Sarolaner	50
Sarolaner + Selamectin	26
Selamectin	209
Selegiline Hydrochloride	29
Sevoflurane	57
Sodium Chloride	20
Spinosad	144
Sucralfate	43
Tigilanol tiglate	33
Tiletamine Hydrochloride	24
Tiletamine Hydrochloride + Zolazepam Hydrochloride	48
Tilmicosin Phosphate	130
Tramadol	77
Trazodone	41
Triamcinolone Acetonide	20
Trilostane	59
Vitamin E	21
Xylazine	24

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. A report can name more than one drug.

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.
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

Ingredients, all combinations

The list has every active ingredient with 20 or more reports that list this sign, in order of name. It has 109 ingredients.

Show the 109 ingredients

Reports by species

Dog75%5,143
Cat15.5%1,064
Horse5.5%378
Human exposure2.7%182
Cattle0.7%49
Sheep0.1%8

The share is of the 6,860 reports that list this sign. The sign is in 0.5% of all reports about the species dog. The sign is in 0.7% of all reports about the species cat.

Reports by month and by year

Reports for each month, Jul 2021 to Jun 2026. The month is the month in which FDA received the report.

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 that list Tachycardia, by the year in which FDA received them
Year	Reports
2026	179
2025	363
2024	372
2023	246
2022	195
2021	246
2020	264
2019	275
2018	242
2017	295
2016	241
2015	323
2014	322
2013	306
2012	280
2011	316
2010	300
2009	283
2008	243
2007	235
2006	195
2005	166
2004	203
2003	143
2002	103
2001	91
2000	99
1999	61
1998	85
1997	38
1996	27
1995	14
1994	24
1993	10
1992	11
1991	9
1990	8
1989	19
1988	19
1987	9

What these reports record

Outcome at the time of the report

Reports with this sign
All reports

Recovered/Normal19.4%1,329, All reports: 20.7%
Recovered with Sequela[recovered, with a lasting effect]0.8%56, All reports: 2.3%
Ongoing16.7%1,143, All reports: 17.4%
Died17.4%1,196, All reports: 4.9%
Euthanized8%548, All reports: 1.5%
Outcome Unknown9.9%677, All reports: 22.7%

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 6,860 reports that list this sign.

Age of the animal

Reports with this sign
All reports

Under 1 year11.3%778, All reports: 9.5%
1 to 3 years23.7%1,626, All reports: 23.9%
4 to 7 years22.4%1,540, All reports: 20.2%
8 to 11 years21.1%1,448, All reports: 15.4%
12 years and over16.3%1,118, All reports: 10.7%
Age not given5.1%350, All reports: 20.3%

The outcome is for the full report, not for this sign only.

Next in the A to Z list of signs

Syncope
Syringe, Abnormal[a product quality report, not a sign in an animal]
Systemic disorder NOS[NOS: not otherwise specified]
Tablets, Abnormal[a product quality report, not a sign in an animal]
Tachypnoea[fast breathing]
Tarry or black stool
Temporary blindness
Temporary deafness

All clinical signs

Cite this page

Pet Drug Reports. Tachycardia: adverse event reports for animal drugs. https://petdrugreports.com/reaction/tachycardia/ Source: FDA Center for Veterinary Medicine, openFDA Animal and Veterinary adverse event reports, export of 30 Oct 2026. Reports received through 26 Jun 2026.

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 counts the different spellings of one VeDDRA term together.

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 this sign

What does this term mean in a report?: In plain words: fast heart rate. It is a term from VeDDRA, the list of terms that FDA and drug companies use to code a report. The person who coded the report selected the term.
How does the count of the latest 12 months compare with the 12 months before?: FDA received 333 reports in the 12 months to June 2026. It received 402 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.
How many of these reports have a serious flag?: Of the 4,029 reports that say if the event was serious, 78.8% have the serious flag. The person who sends a report sets the flag.
Does a drug in the table cause this sign?: The reports do not show that. A report can name more than one drug. 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