From the FDA Drug Label
Do not take more than 5 chewable tablets in a 24-hour period Do not exceed 5 chewable tablets in 24 hours. Children under 12 years consult a doctor.
The dangerous dosage of calcium carbonate for a toddler to accidentally consume is not explicitly stated in the drug labels. However, it is clear that:
- The maximum recommended dosage for adults and children 12 years and older is 5 chewable tablets in 24 hours.
- For children under 12 years, a doctor should be consulted, implying that the dosage may vary and should be determined by a physician. Since the labels do not provide a specific dosage for toddlers, and given the instruction to consult a doctor for children under 12 years, no conclusion can be drawn about a specific dangerous dosage for a toddler. 1 1
From the Research
I strongly recommend seeking immediate medical attention if a toddler consumes more than 5-10 grams of calcium carbonate, which is roughly equivalent to 10-20 standard 500 mg tablets, as it can cause severe hypercalcemia and potentially life-threatening complications. Calcium carbonate overdose can be dangerous for toddlers due to their small body size and developing organs. Symptoms of toxicity may include nausea, vomiting, constipation, confusion, and in severe cases, kidney problems or metabolic alkalosis 2. The exact dangerous dose varies based on the child's weight, age, and overall health. Even smaller amounts can cause digestive discomfort.
Key Considerations
- Hypercalcemia can be asymptomatic or cause mild symptoms such as fatigue and constipation, but severe cases can lead to nausea, vomiting, dehydration, confusion, somnolence, and coma 3.
- The treatment of hypercalcemia depends on the severity and underlying cause, and may include hydration, intravenous bisphosphonates, and discontinuation of any medications that may be contributing to the condition 4.
- It is essential to keep all medications, including over-the-counter supplements like calcium carbonate antacids, stored securely out of children's reach to prevent accidental ingestion.
Recommendations
- If you suspect your toddler has consumed any calcium carbonate, call Poison Control (1-800-222-1222) immediately for guidance specific to your situation.
- Do not induce vomiting unless directed by medical professionals.
- Seek immediate medical attention if your toddler shows any signs of hypercalcemia or calcium carbonate overdose.