Snail Bait and Dogs: Why It Kills So Fast

Metaldehyde snail bait is bran-based and molasses-sweetened, which is a recipe designed to attract snails and works just as well on dogs. Unlike rat poison, it does not wait — signs usually appear within thirty minutes to three hours, and a dog can be seizing before you have finished looking for the packet.

What it looks like

Restlessness and anxiety first, then muscle tremors that owners often describe as shivering, then drooling, unsteadiness, vomiting and full seizures. Body temperature climbs dangerously because the muscles will not stop working. The old vet nickname is "shake and bake" and it is accurate.

What to do

• Go now. Phone from the car if someone else can drive. This is one of the few poisonings where minutes genuinely change the outcome.
• Take the packet or a photo of the pellets. Green or blue bran-like pellets are the classic look.
• Do not try to make the dog vomit if it is already tremoring or unsteady — it will inhale it.
• Keep the car cool and quiet. Noise and heat make tremors worse. Air conditioning on, radio off.

Treatment is muscle relaxants, anti-seizure medication, cooling and fluids, usually with a day or two of hospitalisation. Dogs that get there in time generally do well.

Protecting the garden without it

Iron phosphate based snail pellets are far safer around pets and are widely available in South Africa — read the active ingredient rather than trusting "pet friendly" on the front. Beyond that, beer traps sunk to soil level work, copper tape on pot rims works, and watering in the morning rather than the evening removes the damp night conditions snails need.

If a neighbour or gardener uses metaldehyde, ask that it be applied under upturned pots with a small gap — snails get in, dogs do not.