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

My 9 kg dog ate a macadamia-nut treat from a pet store package yesterday and is now slightly wobbly on his hind legs — is this an emergency?

Dogs · Toxicity calculator

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

Short answer

This needs attention now. Macadamia nut toxicity typically begins within 12 hours of ingestion, and wobbliness in the hind legs is one of the classic signs. Your 9 kg dog may have consumed a significant amount depending on the treat size, and the weakness could progress to tremors or fever. Keep him warm, quiet, and resting — do not try to induce vomiting without veterinary instruction. Call your vet immediately or reach the ASPCA Poison Control line at 888-426-4435 for guidance. Supportive care usually leads to full recovery within 12 to 48 hours.

How a 9 kg body reacts to processed macadamia

Store-bought treats often contain concentrated nut pastes or oils, making the toxin more bioavailable than whole nuts. Your dog's wobbliness suggests the compounds are already affecting his nervous system. Smaller dogs show symptoms faster and more intensely — at 9 kg, even a treat the size of a thumbnail could trigger this reaction.

The hind leg weakness typically appears first because the toxins temporarily disrupt signals to larger muscle groups. Watch for progression to front legs, which would make walking nearly impossible. Some dogs develop a low-grade fever (over 39°C) that makes them pant excessively. Keep him in a cool, dim room with water within crawling distance if needed.

The critical next six hours

Since symptoms appeared yesterday, the toxins have fully entered his system. The wobbliness may plateau or worsen slightly over the next few hours before gradually improving. Time matters less now than symptom severity — if he can't rise at all or starts vomiting, he needs intravenous fluids to prevent dehydration from panting and inability to drink properly.

Check his gum color by lifting his lip; pale or tacky gums indicate circulation issues. Feel his ears and paws — unusual warmth suggests rising body temperature. Offer ice cubes if he's alert enough to lick them, but don't force water if he's too uncoordinated. Pad his resting area with towels in case he loses bladder control temporarily.

Why you shouldn't wait until morning

Neurological symptoms can evolve unpredictably, especially in smaller dogs. What starts as mild wobbliness could progress to full-body tremors or painful muscle stiffness. Vets can provide supportive care like anti-nausea medication and warming blankets if his temperature drops. Waiting risks dehydration if he's too weak to maintain normal water intake overnight.

His size works against him here — a 9 kg dog has less reserve than larger breeds. Subtle changes like faster breathing or dilated pupils are easier to miss in dim evening light. If you're debating whether to go in, describe his symptoms to the emergency clinic over the phone. They'll likely recommend bringing him in if the wobbliness is affecting his ability to stand unaided.

Recovery expectations for small dogs

Most dogs improve within 24-48 hours, but smaller breeds sometimes take longer to regain full coordination. Don't be alarmed if he walks like he's on a boat for another day or two. Avoid stairs and slippery surfaces during recovery — his confidence will return before his balance does. Appetite usually comes back first, often ravenously, but reintroduce food slowly.

Future exposures could cause worse reactions as his system becomes sensitized. Check all treat labels for 'macadamia oil' or 'nut flour' — these appear in surprising products like grain-free biscuits. When in doubt about an ingredient, assume it's unsafe. One episode of weakness is enough to justify permanent avoidance of all macadamia-containing products.

For a dose worked out against your pet's weight, use the Macadamia Nut Toxicity Calculator.

Open the full calculator: Macadamia Nut Toxicity Calculator →