Pet Safety / Compounds / Ketamine

Is Ketamine safe for dogs and cats?

Moderate risk for pets

(Dogs-specific data is limited; this page draws from cat context.) Ketamine is one of the most widely used veterinary anesthetic agents for cats, commonly used in combination with medetomidine or acepromazine for injectable anesthesia. It is the standard injectable anesthetic used in high-volume spay-neuter programs. Cats metabolize ketamine primarily by hepatic N-demethylation; the metabolite norketamine is excreted renally. Cats with hepatic disease may have prolonged recovery. Ketamine maintains cardiovascular stimulation (tachycardia, hypertension) via sympathomimetic effects, making it less suitable for cats with hypertrophic cardiomyopathy. Accidental overdose in cats from incorrect dosing produces prolonged recovery and apnea at very high doses. Ketamine is classified as moderate risk for cats not because it is dangerous at therapeutic doses — it is remarkably safe in appropriate clinical use — but because the sympathomimetic cardiovascular effects require monitoring in cardiac patients.

What is ketamine?

The IUPAC name is 2-(2-chlorophenyl)-2-(methylamino)cyclohexan-1-one.

Also known as: 2-(2-chlorophenyl)-2-(methylamino)cyclohexan-1-one, dl-Ketamine, Ketaject, Special K.

IUPAC name
2-(2-chlorophenyl)-2-(methylamino)cyclohexan-1-one
CAS number
6740-88-1
Molecular formula
C13H16ClNO
Molecular weight
237.72 g/mol
SMILES
CNC1(CCCCC1=O)C2=CC=CC=C2Cl
PubChem CID
3821

Risk for dogs

Moderate risk

Ketamine is one of the most widely used veterinary anesthetic agents for cats, commonly used in combination with medetomidine or acepromazine for injectable anesthesia. It is the standard injectable anesthetic used in high-volume spay-neuter programs. Cats metabolize ketamine primarily by hepatic N-demethylation; the metabolite norketamine is excreted renally. Cats with hepatic disease may have prolonged recovery. Ketamine maintains cardiovascular stimulation (tachycardia, hypertension) via sympathomimetic effects, making it less suitable for cats with hypertrophic cardiomyopathy. Accidental overdose in cats from incorrect dosing produces prolonged recovery and apnea at very high doses. Ketamine is classified as moderate risk for cats not because it is dangerous at therapeutic doses — it is remarkably safe in appropriate clinical use — but because the sympathomimetic cardiovascular effects require monitoring in cardiac patients.

Risk for cats

Moderate risk

Ketamine is one of the most widely used veterinary anesthetic agents for cats, commonly used in combination with medetomidine or acepromazine for injectable anesthesia. It is the standard injectable anesthetic used in high-volume spay-neuter programs. Cats metabolize ketamine primarily by hepatic N-demethylation; the metabolite norketamine is excreted renally. Cats with hepatic disease may have prolonged recovery. Ketamine maintains cardiovascular stimulation (tachycardia, hypertension) via sympathomimetic effects, making it less suitable for cats with hypertrophic cardiomyopathy. Accidental overdose in cats from incorrect dosing produces prolonged recovery and apnea at very high doses. Ketamine is classified as moderate risk for cats not because it is dangerous at therapeutic doses — it is remarkably safe in appropriate clinical use — but because the sympathomimetic cardiovascular effects require monitoring in cardiac patients.

Regulatory consensus

1 regulatory bodyhas classified Ketamine.

AgencyYearClassificationNotes
DEASchedule IIIUnited States Drug Enforcement Administration scheduling

Regulators apply different standards of evidence — animal-data weighting, exposure-pattern assumptions, epidemiological power thresholds — which is why two scientific bodies can review the same data and reach different conclusions. The disagreement is the data.

Where pets encounter ketamine

  • Industrial FacilitiesManufacturing plants, Chemical storage areas, Waste treatment sites
  • Occupational EnvironmentsFactories, Warehouses, Transportation vehicles

Safer alternatives

Lower-risk approaches that achieve a similar outcome to Ketamine:

  • Therapeutic alternatives (consult prescriber)
    Trade-offs: Drug-specific. Cannot substitute without medical guidance.
    Relative cost: 1.2-2×

Frequently asked questions

What products contain ketamine?

Ketamine appears in: Manufacturing plants (Industrial facilities); Chemical storage areas (Industrial facilities); Factories (Occupational environments); Warehouses (Occupational environments).

See Ketamine in the pets app

Look up products containing ketamine, compare to alternatives, and explore the full data record.

Open in pets View raw API data

Sources (2)

  1. US DEA: Ketamine — Schedule III Controlled Substance, Veterinary and Medical Anesthesia Uses, Ketamine-Induced Uropathy Epidemiology, Recreational Misuse Trends, and Hepatotoxicity Reports (2022) (2022) — regulatory
  2. US FDA: Esketamine (Spravato) — Approval for Treatment-Resistant Depression (2019), Pediatric Brain Development Advisory (2016, General Anesthetic Agents in Children <3 Years), REMS Program, and Ketamine Compounding for Depression (2023) (2023) — regulatory

Reference data, not professional advice. Aggregates publicly available regulatory and scientific data; not a substitute for veterinary, medical, legal, or regulatory advice. Why we built ALETHEIA →