How three granules change the equation for a 7 kg dog
Each granule packs enough metaldehyde to threaten a small dog, and together they deliver a potentially lethal dose. Unlike a single pellet where some might pass undigested, multiple granules increase the chance of full absorption. Your terrier's size means even a few granules can overwhelm his nervous system rapidly.
The blue coloring helps track exposure but doesn't reduce toxicity. If granules were wet from dew or rain, metaldehyde may have started dissolving, making it easier for his stomach to absorb. Time is critical — effects progress faster with higher doses.
The 30-minute to 3-hour danger window
First symptoms often appear within half an hour: excessive drooling, dilated pupils, and uncoordinated movements. These can escalate to full-body tremors that look like seizures but are actually intense muscle contractions. At this stage, the dog's body temperature spikes dangerously — over 41°C (106°F) risks brain damage.
Veterinary teams prioritize cooling measures alongside anticonvulsants. Don't attempt ice baths at home; improper cooling can send the body into shock. Clinic-grade IV fluids and temperature probes allow precise control during this fragile phase.
Why terriers need extra vigilance
High-energy breeds often show earlier and more severe symptoms because their faster metabolisms distribute the toxin quicker. Your dog's curiosity (common in terriers) likely led to ingestion, but that same trait means he may hide early signs of distress. Watch for subtle changes like refusing treats or excessive licking of surfaces.
Even if he seems stable now, the granules may still be dissolving in his stomach. Emergency vets sometimes use endoscopy to remove remaining bait before it's fully absorbed, but this requires general anesthesia — another reason to act fast.
Transport tips when every minute counts
If symptoms appear while you're preparing to leave, wrap your dog in a towel to absorb drool and prevent slipping during tremors. Have someone call the clinic en route so staff meet you with a stretcher. Never place fingers near the mouth during seizures — jaw muscles contract with tremendous force.
Bring a sample of the granules or photos of the packaging. Some brands mix metaldehyde with attractants like molasses, which can complicate blood sugar regulation during treatment. The vet team may also check for secondary issues like cuts from thrashing or inhaled vomit.
For a dose worked out against your pet's weight, use the Slug Bait (Metaldehyde) Toxicity Calculator.