Prescribing overview
Reviewed single-ingredient human tablets do not establish a veterinary indication or dose. Confirm ingredients and release type before considering any animal prescription.
Key prescribing checks
- Check the full ingredient panel, especially when owners bring an over-the-counter cold/allergy product. Additional actives and extended-release formulations need separate review.
- The human labeling warns about drowsiness and interaction with sedatives or alcohol. Veterinary staff should reconcile other sedating medicines and refer patient-specific risk decisions to the prescriber.
- Human precautions include glaucoma, urinary difficulty and breathing disease. These are screening prompts for veterinary assessment, not species-specific treatment instructions. Document the exact product and formulation before adding it to the record.
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.
Humans; animal use not verified
Human OTC labeling; not a veterinary approvalTemporary upper-respiratory allergy symptom relief
No animal indication inferred.
Use / indication source ↗Pharmacology & pharmacokinetics
Mechanism and clinical role
The reviewed product identifies chlorpheniramine as an antihistamine.
Absorption, distribution, metabolism and elimination
Species-specific animal absorption and elimination are not established by this human Drug Facts label.
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.
Chlor-Trimeton
Historical human brand; reviewed current single-ingredient generic chlorpheniramine tablet Drug Facts, not every historical Chlor-Trimeton formulation.
Contraindications · when not to use
- Reviewed generic human label says not to use in children younger than six; this is not an animal age restriction.
Precautions & monitoring
- Human screening precautions include glaucoma, urinary difficulty from enlarged prostate and chronic breathing disease; pregnancy/breastfeeding needs review. Drowsiness or excitability may occur.
Confirm the exact historical brand, release type and ingredients; a current generic label does not verify all Chlor-Trimeton products.
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 labeling warns of drowsiness and possible excitability; these are not quantified animal adverse-event rates.
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
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.
Veterinary dose not verified; do not use human package directions for animals.
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.
Chlor-Trimeton
Historical human brand; reviewed current single-ingredient generic chlorpheniramine tablet Drug Facts, not every historical Chlor-Trimeton formulation.
- Alcohol, sedatives and tranquilizers can increase drowsiness.
Monitoring
Review other sedating medicines and the exact formulation with the veterinarian.
Client counseling
Do not substitute a multi-ingredient cold/allergy product for single-ingredient chlorpheniramine.
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 identified product out of children's reach and follow its package storage instructions.
Brands, formulations & ingredient identity
Active ingredients
Chlorpheniramine
Other searchable names: Chlorpheniramine maleate · Chlorphenamine
The maleate salt commonly appears on ingredient panels. Look for the active ingredient and release type, not only the familiar allergy-brand name.
Chlor-Trimeton-branded combination products have existed, including decongestant combinations. A product containing chlorpheniramine is not necessarily a single-ingredient product or an appropriate veterinary substitute.
Shared ingredients do not establish interchangeable concentrations, routes, release properties, species labeling or regional availability.
Chlor-Trimeton
- Formulation
- Human antihistamine brand; formulation must be checked
- Label / product scope
- Human product
Historical human brand; NIH lists it as no longer marketed. Verify ingredients and current generic presentation.
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.