TL;DR: Eating an oxygen absorber is a medium-level emergency because the iron contents can be toxic and the packet itself can cause blockages. Contact your veterinarian immediately and monitor your pet for vomiting, lethargy, or diarrhea.
What exactly is an oxygen absorber packet found in food packaging?
Oxygen absorbers are the small, rectangular packets found inside beef jerky bags and other shelf-stable foods. Their purpose is to prevent spoilage by removing oxygen from the package. Most of these packets contain iron powder, which reacts with oxygen to create iron oxide (rust). While some packets may contain silica gel or charcoal, the iron-based versions are the most common in meat products.
Is it an emergency if my pet swallows an oxygen absorber?
- The urgency level for this situation is classified as Medium.
- While a single packet may not be fatal to large dogs, it can cause significant iron toxicity in smaller dogs or if multiple packets are consumed.
- Iron poisoning can damage the digestive tract and internal organs.
- The packet itself poses a choking hazard or can cause a physical blockage in the intestines.
- Monitor for symptoms like vomiting, bloody diarrhea, or lethargy and contact your veterinarian immediately.
Why is taking a photo of the oxygen absorber packet helpful for my veterinarian?
- Locate the remains of the packet or an identical one from the same brand to take a clear photo.
- A photo allows your veterinarian or a pet poison expert to identify the specific contents and brand.
- Identifying whether the packet contained iron powder versus silica gel significantly changes the treatment plan.
- Iron requires much more aggressive monitoring and potential decontamination than other materials.
Clinical Context (Merck Veterinary Manual)
For asymptomatic dogs with recent ingestion of more than 1-2 g/kg of an oxygen absorber, emesis should be induced, and activated charcoal may be beneficial with large ingestions. Fortunately, most symptomatic dogs recover without specific treatment; severely affected dogs may be given supportive treatment such as fluids, analgesics, or antipyretics. Multivitamin preparations may contain iron, which has direct caustic or irritant effects on the GI mucosa and can be a direct mitochondrial poison. Initial vomiting and diarrhea, with or without blood, may be followed by hypovolemic shock, depression, fever, acidosis, and liver failure 12-24 hours later.
Chapter: Toxicology, Nephrology
Source: The Merck Veterinary Manual, 11th Edition (Page 2968)