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VETERINARY TEAM REFERENCE · MEDICATION

Trazodone

A serotonin-modulating antidepressant identified in human labeling. Veterinary use requires a veterinarian-selected indication and regimen; the human depression label is not an animal treatment protocol.

Serotonin-modulating antidepressantProduct-specific clinical reference

Updated October 16, 2026 · Sources and review status below

For veterinarians and veterinary staff. Product-label information is distinct from extra-label clinical practice. This is not a complete prescribing formulary or an automated interaction screen. Verify the current label, exact formulation, patient and species-specific clinical reference before use. Independent veterinary/pharmacy review remains pending.

Prescribing overview

Human trazodone labeling does not establish an approved animal behavioral indication or regimen. Sedation alone does not demonstrate relief of distress.

Key prescribing checks

  • Screen the full medication list for other serotonergic drugs and monoamine oxidase inhibitors. The human label warns about serotonin syndrome and clinically important interactions.
  • Sedation and impaired coordination are relevant observations to document. Do not assume increased sleepiness proves that anxiety or distress is adequately controlled.
  • Review cardiac history and drugs affecting cardiac rhythm with the clinician; the human label describes arrhythmia and QT-related risks. Animal-specific decisions require veterinary references.

Uses by species

Approval and evidence apply to the named product, species, route and indication. An extra-label use requires its own prescribing assessment; a human indication is not an animal approval.

Veterinary patients: not established by reviewed label

Extra-label veterinary use; reviewed tablets are human-labeled

Veterinarian-selected behavioral or situational management

Human approval is for major depressive disorder, not an animal protocol.

Use / indication source ↗

Pharmacology & pharmacokinetics

Mechanism and clinical role

Inhibits serotonin reuptake and antagonizes 5-HT2 receptors; alpha-1 antagonism contributes to hypotension risk.

Absorption, distribution, metabolism and elimination

Reviewed human-label PK does not verify animal absorption, active-metabolite exposure or elimination intervals.

SAFETY REFERENCE · PRODUCT & SPECIES SPECIFIC

Contraindications & cautions

Contraindications identify circumstances where the source says a product should not be used. Precautions call for assessment or monitoring. Interactions identify combinations to review. They are distinct categories; this summary does not replace a full interaction check or the current product label.

Desyrel

Human tablet brand identity; Human product

Contraindications · when not to use

  • MAOI treatment or use within fourteen days, including linezolid or intravenous methylene blue.

Precautions & monitoring

  • Arrhythmia/QT prolongation, hypotension, sedation and hyponatremia require assessment.

Human labeling; this does not establish veterinary approval or animal-specific eligibility.

Desyrel is the brand identity; safety facts are drawn from current generic trazodone labeling.

Safety sources checked: . Selected label information; independent veterinary or veterinary-pharmacy review remains pending. A label for dogs, cats, horses or humans does not establish safety for another species.

Adverse effects

Human-label concerns include sedation, dizziness, hypotension, arrhythmia/QT prolongation, hyponatremia and serotonin syndrome; animal incidence is not established.

These are selected source-reported effects, not incidence estimates or an exhaustive list. Spontaneous postmarketing reports do not by themselves establish frequency or causality.

Dosing & administration

Verify the source before prescribing. The regimens below summarize selected veterinary product labels, not every accepted veterinary use. They are not automatic substitutions between brands or formulations. Renal/hepatic disease, concurrent therapy, age, indication and clinical response can require a different plan.

A verified veterinary dose has not been entered for this product. Human-label dosing must not be used as an animal regimen. Consult a current species-specific clinical source and the prescribing veterinarian.

A veterinary dose is not verified. Confirm release formulation and follow only the individual veterinarian's plan.

Extra-label prescribing and food-animal residue requirements are separate from labeled regimens. FDA extra-label-use guidance ↗

Drug & supplement interactions

This is a selected interaction reference, not an automated or comprehensive combination checker. Reconcile prescription drugs, nonprescription products, supplements and recent treatment changes.

Desyrel

Human tablet brand identity; Human product

  • Other serotonergic drugs increase serotonin-syndrome risk; CNS depressants increase sedation. Review CYP3A4 modifiers, QT-prolonging drugs and anticoagulant/NSAID combinations.
Interaction source ↗

Monitoring

Review cardiac history, coordination, excessive sedation and response; screen serotonergic medicines, MAOIs, CYP3A4 modifiers and CNS depressants.

Client counseling

Report collapse, agitation with tremor/fever, or profound sedation promptly. Avoid unsupervised combination with other behavioral medicines.

This section supports the veterinary team's discharge discussion; it does not replace the product’s Client Information Sheet where one is required.

Storage & handling

Keep the labeled product securely away from children and animals; follow its container storage instructions.

Brands, formulations & ingredient identity

Active ingredients

trazodone hydrochloride

Other searchable names: trazodone HCl

Desyrel is a brand identity associated with trazodone hydrochloride tablets. The cited manufacturer lists its generic tablets as the brand equivalent; this does not establish current brand availability.

Confirm immediate-release versus modified-release formulation when reconciling a prescription. A shared ingredient name does not resolve differences in release behavior or instructions.

The salt suffix hydrochloride describes the labeled ingredient, not a second medication.

Shared ingredients do not establish interchangeable concentrations, routes, release properties, species labeling or regional availability.

Desyrel

Formulation
Human tablet brand identity
Label / product scope
Human product

Brand synonym retained for lookup; current dispensing availability must be confirmed.

Product label / source ↗

References & review status

Clinical reference updated October 16, 2026. Independent veterinary or veterinary-pharmacy review not yet completed. Evidence gaps remain explicitly identified; this page does not claim equivalence to a comprehensive, professionally reviewed veterinary formulary.

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