Tums Calcium Carbonate Antacid Tablets
Tums are chewable calcium carbonate tablets designed to neutralize stomach acid for quick relief from heartburn, acid indigestion, and upset stomach. They are put up in measured doses in blister packs or bottles for retail sale, classifying under HTS 3004.90.92.53 as antacids primarily affecting the digestive system.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If imported in bulk powder form without retail packaging
Bulk calcium carbonate falls under inorganic chemicals, not medicaments in measured doses for retail sale.
If marketed primarily as a dietary supplement without therapeutic claims
Food supplements excluding medicaments are classified in Chapter 21, per Chapter 30 exclusion note (a).
If consisting of unmixed active ingredients in measured doses
Unmixed medicaments are under heading 3003, while this HTS requires mixed or unmixed but specifically for antacids in retail forms.
Not sure which classification is right?
Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.
Import Tips & Compliance
• Verify product labeling complies with FDA requirements for OTC antacids, including active ingredient declarations and dosage instructions
• Obtain NDC numbers and ensure certificates of analysis confirm stability and purity for customs clearance
• Avoid misclassification as food supplements by providing evidence of therapeutic claims and measured dosing
Related Products under HTS 3004.90.92.53
Rolaids Extra Strength Antacid Tablets
Rolaids Extra Strength tablets combine calcium carbonate and magnesium hydroxide to neutralize excess stomach acid, providing fast relief from heartburn and indigestion. Packaged in measured doses for retail sale, they qualify as antacids under HTS 3004.90.92.53 for digestive system medicaments.
Alka-Seltzer Lemon-Lime Effervescent Antacid Tablets
Alka-Seltzer effervescent tablets with aspirin, sodium bicarbonate, and citric acid dissolve in water to relieve heartburn, acid indigestion, and headaches. Sold in measured doses for retail, they are classified as antacids under HTS 3004.90.92.53.
Mylanta Maximum Strength Liquid Antacid
Mylanta Maximum Strength is a liquid suspension of aluminum hydroxide, magnesium hydroxide, and simethicone for relief from heartburn, gas, and bloating. Put up in measured doses (e.g., 10mL servings) in retail bottles, it falls under HTS 3004.90.92.53 as an antacid.
Gaviscon Extra Strength Antacid Chewable Tablets
Gaviscon Extra Strength chewables form a protective raft on stomach contents using alginic acid, sodium bicarbonate, and calcium carbonate to prevent acid reflux. Retail-packaged in measured doses, classified as antacids under HTS 3004.90.92.53.
Pepto-Bismol Original Liquid Bismuth Subsalicylate
Pepto-Bismol liquid coats the stomach and reduces inflammation with bismuth subsalicylate for diarrhea, heartburn, and nausea relief. Bottled in measured doses for retail sale, it qualifies as an antacid under HTS 3004.90.92.53.
Maalox Advanced Regular Strength Liquid Antacid
Maalox Advanced liquid antacid with aluminum hydroxide, magnesium hydroxide, and simethicone neutralizes acid and relieves gas pressure. Packaged for retail in measured doses, under HTS 3004.90.92.53.