Why a 5 kg body reacts differently
Three chive stems carry enough toxins to affect a tiny Maltese more than they would a larger dog. The compounds that damage red blood cells don't work instantly — they need time to circulate and interfere with oxygen transport. What seems like a harmless snack now could cause visible symptoms by tomorrow morning.
Small breeds also process toxins faster relative to their size. While a big dog might shrug off this amount, your Maltese's metabolism will concentrate the effects. Don't assume safety just because he's acting normal at the two-hour mark — the real test comes after his body starts breaking down the harmful chemicals.
The silent 12-hour window
Between now and tonight, you might notice only mild signs like extra napping or turning up his nose at treats. More concerning would be vomiting that contains green plant bits, or drooling that wasn't there before. These suggest his stomach is struggling with the irritants in the chives.
Set a phone alarm to check his gums every three hours — press gently on the pink part above his teeth; it should blanch white then spring back to pink within two seconds. Slower refill or a pale pink tint means his blood cells are already under stress. This check matters more than waiting for obvious illness.
When tomorrow's symptoms escalate
If he seems off at breakfast time — less energetic, refusing food, or breathing slightly faster — these could signal anemia is developing. Severe cases show orange or brown urine (from damaged blood cells exiting the body), but you shouldn't wait for that. A vet can spot blood cell changes hours before outward symptoms peak.
Keep him rested today and tomorrow; avoid walks or play that demand extra oxygen. Note any changes in his usual patterns: does he pause halfway up the stairs? Sleep more than usual? These subtle shifts help the vet decide whether he needs bloodwork or supportive care.
Why you shouldn't trust early calm
Many owners make the mistake of relaxing when their dog seems fine the first night. But the toxin's worst effects often hit 24-48 hours later, when damaged red blood cells can no longer carry enough oxygen. Your Maltese's small size means his reserves will deplete faster than a bigger dog's.
Even if he bounces back quickly, ask your vet about checking his packed cell volume (PCV) next week — this measures red blood cell percentage and confirms whether his body has fully recovered. Some dogs need iron supplements or special diets afterward to rebuild their blood supply.
The full verdict, portion guidance and serving notes are collected on the Leek & chives food facts page.