Could oral calcium carbonate mitigate tartaric acid toxicity in dogs? A novel hypothesis.

Grape and raisin ingestion causes acute renal failure in dogs, recently attributed to tartaric acid toxicity. Standard treatments lack specific antidotes, creating a need for novel therapeutic strategies. Calcium carbonate (CaCO3 could theoretically neutralize tartaric acid in the gastrointestinal tract by forming insoluble calcium tartrate, potentially reducing systemic absorption. Although not yet clinically validated, analogous approaches for oxalate and fluoride poisonings suggest feasibility. This Viewpoint presented chemical and physiological rationales, stoichiometric calculations, practical clinical applications, and safety considerations. We propose the cautious clinical exploration of oral calcium carbonate as an adjunctive treatment in canine tartaric acid toxicosis.