Pet Safety / Compounds / Sertraline (Zoloft)

Is Sertraline (Zoloft) safe for dogs and cats?

Moderate risk for pets

Sertraline is not FDA-approved for veterinary use but is used off-label by veterinarians for canine anxiety disorders; accidental ingestion of human formulations is a common ASPCA APCC call. Veterinary dosing: 2.5–5 mg/kg/day for anxiety-related behaviors; combined with behavior modification. Serotonin syndrome: dogs metabolize sertraline primarily via CYP3A4 and CYP2B11; clinical toxicity threshold for serotonin syndrome signs approximately 10–20 mg/kg in dogs, though individual sensitivity varies. Signs: hyperthermia, tremors, ataxia, hyperesthesia, mydriasis, hypersalivation, vocalization; onset typically within 1–4 hours. Desmethylsertraline: the weakly active metabolite has a longer half-life and may contribute to prolonged clinical signs. Sertraline tablets: 25 mg, 50 mg, 100 mg; a large dog ingesting a full bottle represents a significant exposure. Treatment: gastric decontamination if early; cyproheptadine; methocarbamol; thermoregulation; IV fluid support. Concurrent medications: dogs on tramadol (frequently prescribed in veterinary medicine) are at elevated serotonin syndrome risk.

What is sertraline (zoloft)?

The IUPAC name is (1S,4S)-4-(3,4-dichlorophenyl)-N-methyl-1,2,3,4-tetrahydronaphthalen-1-amine.

Also known as: (1S,4S)-4-(3,4-dichlorophenyl)-N-methyl-1,2,3,4-tetrahydronaphthalen-1-amine, sertraline, (+)-Sertraline, Sertralina.

IUPAC name
(1S,4S)-4-(3,4-dichlorophenyl)-N-methyl-1,2,3,4-tetrahydronaphthalen-1-amine
CAS number
79617-96-2
Molecular formula
C17H17Cl2N
Molecular weight
306.2 g/mol
SMILES
CNC1CCC(C2=CC=CC=C12)C3=CC(=C(C=C3)Cl)Cl
PubChem CID
68617

Risk for dogs

Moderate risk

Sertraline is not FDA-approved for veterinary use but is used off-label by veterinarians for canine anxiety disorders; accidental ingestion of human formulations is a common ASPCA APCC call. Veterinary dosing: 2.5–5 mg/kg/day for anxiety-related behaviors; combined with behavior modification. Serotonin syndrome: dogs metabolize sertraline primarily via CYP3A4 and CYP2B11; clinical toxicity threshold for serotonin syndrome signs approximately 10–20 mg/kg in dogs, though individual sensitivity varies. Signs: hyperthermia, tremors, ataxia, hyperesthesia, mydriasis, hypersalivation, vocalization; onset typically within 1–4 hours. Desmethylsertraline: the weakly active metabolite has a longer half-life and may contribute to prolonged clinical signs. Sertraline tablets: 25 mg, 50 mg, 100 mg; a large dog ingesting a full bottle represents a significant exposure. Treatment: gastric decontamination if early; cyproheptadine; methocarbamol; thermoregulation; IV fluid support. Concurrent medications: dogs on tramadol (frequently prescribed in veterinary medicine) are at elevated serotonin syndrome risk.

Regulatory consensus

1 regulatory bodyhas classified Sertraline (Zoloft).

AgencyYearClassificationNotes
FDA—Approved for MDD, OCD, panic disorder, PTSD, social anxiety disorder (SAD), and PMDD

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 sertraline (zoloft)

  • Industrial Facilities — Manufacturing plants, Chemical storage areas, Waste treatment sites
  • Occupational Environments — Factories, Warehouses, Transportation vehicles

Safer alternatives

Lower-risk approaches that achieve a similar outcome to Sertraline (Zoloft):

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

Frequently asked questions

Is sertraline (zoloft) safe for pets?

Sertraline is not FDA-approved for veterinary use but is used off-label by veterinarians for canine anxiety disorders; accidental ingestion of human formulations is a common ASPCA APCC call. Veterinary dosing: 2.5–5 mg/kg/day for anxiety-related behaviors; combined with behavior modification. Serotonin syndrome: dogs metabolize sertraline primarily via CYP3A4 and CYP2B11; clinical toxicity threshold for serotonin syndrome signs approximately 10–20 mg/kg in dogs, though individual sensitivity varies. Signs: hyperthermia, tremors, ataxia, hyperesthesia, mydriasis, hypersalivation, vocalization; onset typically within 1–4 hours. Desmethylsertraline: the weakly active metabolite has a longer half-life and may contribute to prolonged clinical signs. Sertraline tablets: 25 mg, 50 mg, 100 mg; a large dog ingesting a full bottle represents a significant exposure. Treatment: gastric decontamination if early; cyproheptadine; methocarbamol; thermoregulation; IV fluid support. Concurrent medications: dogs on tramadol (frequently prescribed in veterinary medicine) are at elevated serotonin syndrome risk.

What products contain sertraline (zoloft)?

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

See Sertraline (Zoloft) in the pets app

Look up products containing sertraline (zoloft), compare to alternatives, and explore the full data record.

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Sources (2)
  1. FDA Prescribing Information: Sertraline (Zoloft) — MDD/OCD/panic/PTSD/SAD/PMDD; Black Box suicidality; CYP2D6 inhibitor; pimozide contraindication; discontinuation syndrome; pediatric OCD ≥6yr; overdose profile (2023) (2023) — regulatory
  2. ASPCA Animal Poison Control Center: SSRI/SNRI Toxicosis in Dogs and Cats — serotonin syndrome; cyproheptadine treatment; toxic dose thresholds; fluoxetine/sertraline/paroxetine/escitalopram comparison; clinical signs and management (2023) (2023) — veterinary

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 →