How to Treat Dogs for Onion Poisoning
Onion contains thiosulphate, which is highly toxic to dogs. While a small amount of onion in food is not immediately detrimental, it may build up in a dog's bloodstream and cause anemia. Ingesting 600 to 800 g of onion in a short time period can cause anemia (Reference 2). Exposing a dog to 150 g per day in a period of several days can cumulatively cause the same effect (Reference 2). There are several methods to treat onion poisoning based on the acuteness of the situation. If a dog has ingested a negligible amount, the poison will naturally be expelled and minimal action is needed. The instructions assume a dog has consumed a large dose.
Things You'll Need
- Hydrogen peroxide
- Milk of magnesia or milk
- 1 tbsp. dry mustard
- 1 cup water
- Muzzle
- Phone number of poison hot line or veterinarian
Instructions
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Large dose
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1
Determine if the dog has indeed ingested a large dose of onion. Evidence includes witnessing consumption or food remnants. Symptoms may include weakness, vomiting and blood in urine (Reference 2). Interest in food is diminished or nil. Do not wait for symptoms to appear if consumption is suspected.
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2
Dial her veterinarian's office number, or the toll-free number of the local pet poison control hot line. Do not leave the dog's side while doing so.
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3
If advised and if the dog has not already done so, induce vomiting. If directed, orally administer 1 tsp. of hydrogen peroxide per 10 pounds of the dog's weight. If hydrogen peroxide is not available, substitute 1 tbsp. of dry mustard to 1 cup of water. (Reference 1).
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4
Locate the dog's muzzle and secure it to avoid bites. The dog may be agitated or frightened because of your nervousness or the predicament (Reference 3).
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5
Rush the dog to her veterinarian, unless advised differently over the phone. Although the poison can be naturally expelled from her system, she may need a blood transfusion in the meantime (Reference 1).
Small Dose
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6
Determine if the dog has consumed onion. The remedy for a smaller dose is less drastic and will not harm the dog if incorrectly diagnosed.
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7
Contact the veterinarian or veterinary technician for guidance.
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8
Administer milk of magnesia if advised. If not on hand, administer dairy milk to the dog. This is not a cure, but will slow the effects of the poison.
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9
Watch for additional symptoms over the next few days. If a very small amount was ingested, symptoms will not appear, or will disappear when onion has been discontinued from his diet.
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10
Immediately take the dog to his veterinarian if symptoms of diarrhea, lethargy, blood in the urine or vomiting commence.
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1
Tips & Warnings
According to the American Society for the Prevention of Cruelty to Animals: "If you witness your pet consuming material that you suspect might be toxic, do not hesitate to seek emergency assistance, even if you do not notice any adverse effects. Sometimes, even if poisoned, an animal may appear normal for several hours or for days after the incident."
Professional guidance is critical. Some measures are included to educate the dog owner on what to expect, and are not intended to replace the instruction of a veterinarian or technician.
