Dog · Canis lupus familiaris · typical adult weight 2.00–80.00 kg
Dichlorvos is dosed at 26.4–33 mg/kg PO once in dogs, per Verified against Papich/Saunders Handbook of Veterinary Drugs, 4th Ed, p.260 (2026-08-01).. Dichlorvos is used in dogs for GI nematodes (obsolete). Routes documented in dogs: PO. A typical adult dog weighs 2.00–80.00 kg. ExoticRx lists 1 cited dose rule for Dichlorvos in dogs, drawn from published veterinary references. Verify against current literature before clinical use.
US trade names: Vapona, Task
| Route | Dose | Frequency | Duration | Indication | Evidence | Source |
|---|---|---|---|---|---|---|
| PO | 26.4–33 mg/kg | once | Single dose | GI nematodes (obsolete) | Weak | Verified against Papich/Saunders Handbook of Veterinary Drugs, 4th Ed, p.260 (2026-08-01). |
Need the exact dose for your patient?
These ranges are per kg. Enter your dog's weight to get the precise dose and draw-up volume — unit and concentration math done for you.
Irreversible acetylcholinesterase inhibitor causing accumulation of acetylcholine at parasitic neuromuscular junctions.
Organophosphate toxicity risk. Do not combine with other cholinesterase inhibitors. Antidote: atropine + pralidoxime. Largely replaced by safer alternatives.
Species-specific contraindications and adverse-reaction reports for dogs may differ from canine / feline reference data — consult the primary citations listed with each rule.
Dichlorvos dose range in dogs, with cited source references: PO 26.4–33 mg/kg once. Reference ranges from cited sources — verify against current literature before clinical use.
Documented routes for Dichlorvos in dogs: PO.
Cited course lengths for Dichlorvos in dogs include: Single dose. Duration depends on the indication — match it to the specific dose rule in the table above.
Dichlorvos is indicated in dogs for: GI nematodes (obsolete).
These are general warnings for Dichlorvos across species; consult the dog dosing table above for species-specific guidance. Organophosphate toxicity risk. Do not combine with other cholinesterase inhibitors. Antidote: atropine + pralidoxime. Largely replaced by safer alternatives.
Why a species-specific page? Dichlorvos pharmacokinetics differ across species: dose ranges, intervals, and route preferences are not interchangeable. Cross-extrapolation from canine doses is unsafe in dogs — the rules above are the citations specific to this species, not generic recommendations.
Sourced from published veterinary references; awaiting credentialed clinical reviewer. See our editorial process. Reference only — not veterinary advice.