Maximum Frequency of Tums (500 mg Calcium Carbonate) Per Day
According to the FDA drug label, adults and children 12 years and older should not take more than 5 tablets of Tums (500 mg calcium carbonate) in a 24-hour period, unless under the supervision of a physician. 1
Dosing Guidelines
- Standard dosing: Chew and swallow 1-2 tablets every 2-4 hours as needed
- Maximum daily dose: 5 tablets in 24 hours
- Maximum duration: Do not use the maximum dosage for more than 2 weeks without physician supervision 1
Clinical Considerations
Efficacy
- Calcium carbonate antacids work by rapidly neutralizing esophageal acid
- Research shows they may also improve esophageal motor function in heartburn sufferers by:
- Increasing proximal esophageal contractile amplitude
- Decreasing distal onset velocity
- Improving acid clearance 2
Safety Concerns
- Constipation: May occur with regular use 1
- Long-term use: Heavy antacid use (defined as >6 doses per week) should be evaluated by a healthcare provider, as it may indicate underlying conditions like reflux esophagitis 3
Special Populations
- Children under 12: Should consult a doctor before use 1
- Pregnancy: Antacids have been used for pregnancy-related reflux, but specific dosing should be discussed with a healthcare provider 4
When to Seek Medical Attention
You should consult a healthcare provider if:
- You need to use the maximum dosage for more than 2 weeks
- You find yourself using antacids frequently (>6 doses per week)
- Your symptoms don't improve with antacid use
- You develop new or worsening symptoms
Practical Tips
- Take antacids at least 1 hour after meals for optimal effect in treating acid-related disorders 4
- Avoid taking other medications within 2 hours of antacids, as they may interfere with absorption (though studies show ibuprofen absorption is not significantly affected) 5
- For persistent symptoms requiring regular antacid use, discuss with your healthcare provider as more effective treatment options may be available 4