Suspect poisoning? US: ASPCA Poison Control (888) 426-4435 · UK: 01202 509 000 · Severe symptoms → nearest emergency vet now.

My 7 kg terrier just licked a cane toad once and is now shaking his head and drooling — is this an emergency?

Dogs · Emergency guide

Last reviewed: 2026-09-05 · Reference ranges: ASPCA, Pet Poison Helpline & Merck Veterinary Manual

Short answer

Yes, this is an emergency. Even a single lick can transfer dangerous bufotoxins, which are absorbed rapidly through the gums. Head shaking and drooling are classic early signs of toad poisoning, which can quickly progress to wobbliness, seizures, or heart problems. Do not rinse his mouth with water, as this spreads the toxin. Instead, use a damp cloth to repeatedly wipe his gums and mouth for 10-15 minutes to remove the poison, then go straight to the vet or emergency clinic. For immediate advice, you can also call the ASPCA Animal Poison Control Center at 888-426-4435.

How head-shaking changes the risk for a 7kg terrier

When a dog shakes his head after toad contact, it distributes toxin from the tongue to cheeks and ear canals—areas owners often miss during cleaning. Your terrier's vigorous motion means thorough wiping must include these secondary exposure sites, not just the initial lick point.

Drooling combined with head-shaking suggests oral discomfort and early neurological irritation. At this weight, the toxin can quickly affect balance centers in the brain. Expect worsening incoordination if treatment is delayed—the shaking may progress to full-body tremors.

Why one lick equals big danger for mid-size dogs

A terrier's 7kg body lacks the mass to dilute absorbed toxins effectively. The tongue's rich blood supply delivers poison rapidly to the bloodstream—what seems like minor contact can cause disproportionate effects. Even if the lick was brief, the rough tongue surface holds more toxin than a smooth lick would suggest.

Watch for brick-red gums as an overlooked early sign; toxin affects blood vessel tone. Panting may increase as the body tries to compensate for cardiovascular changes. Don't be fooled if symptoms seem stable—cane toad poisoning often has sudden worsening phases.

Transport precautions for neurological symptoms

Head-shaking dogs need secure carriers or blankets to prevent injury during travel. Position him on his side to avoid choking on saliva—neurological effects can impair swallowing. Covering the carrier with a light cloth reduces visual stimuli that might trigger more shaking.

Record symptom timing: note when the lick occurred versus when shaking started. This progression timeline helps vets predict complication risks. Avoid using verbal commands—toxin exposure may temporarily impair your dog's ability to process familiar cues.

Post-exposure behavior changes to track

After treatment, some dogs develop transient light sensitivity or sound aversion. Your terrier might shy from bright rooms or avoid squeaky toys for a few days—this usually resolves as the nervous system recovers. Document any unusual sleep patterns or appetite fluctuations.

Recheck his mouth for lingering redness or swelling at the lick site. Some dogs develop temporary texture aversions—if he refuses hard kibble, try softening it briefly. Most importantly, monitor for recurring head tremors, which warrant immediate vet follow-up.

The step-by-step response, from the first minute to the vet visit, is in our Cane Toad & Toad Poisoning emergency guide.

Open the full emergency guide: Cane Toad & Toad Poisoning →