Omeprazole

2,584 adverse event reports submitted to the FDA

Important: Adverse event reports do not establish that a drug caused or contributed to the event. Consult your veterinarian before making treatment decisions.

2,584

Total Reports

208

Deaths Reported

800.0%

Death Rate

Active Ingredients

Omeprazole

Administration Routes

OralUnknownTopicalIntravenousIntramuscularParenteralIntraocularOphthalmic

Species Affected

Horse 1,352

Dog 833

Unknown 328

Human 37

Cat 28

Pig 4

Cattle 1

Mule 1

Most Affected Breeds

Unknown 383

Quarter Horse 285

Horse (unknown) 235

Thoroughbred 232

Warmblood (unspecified) 159

Retriever - Labrador 126

Retriever - Golden 59

Arab 48

Paint 36

Shepherd Dog - German 34

Most Reported Reactions

Lack of efficacy - NOS 683

INEFFECTIVE, GASTRIC ULCER(S) 581

Vomiting 259

Partial lack of efficacy 209

Diarrhoea 184

Lethargy (see also Central nervous system depression in 'Neurological') 156

Anorexia 141

Death by euthanasia 140

Other abnormal test result NOS 131

Decreased appetite 105

Elevated alanine aminotransferase (ALT) 104

Lethargy (see also Central nervous system depression in Neurological) 97

Outcome Breakdown

Ongoing

798 (36.1%)

Outcome Unknown

717 (32.4%)

Recovered/Normal

475 (21.5%)

Euthanized

141 (6.4%)

Died

69 (3.1%)

Recovered with Sequela

12 (0.5%)

Source: FDA Center for Veterinary Medicine — Adverse Event Reports. Data reflects voluntary submissions and may not represent actual incidence rates.