Compare Medicines
Compare two medicines side-by-side: halal status, inactive ingredients that differ, and pharmacist questions — free, cited, and private.
Prevacid 30 mg Capsule (lansoprazole)
- Form
- Delayed-release capsule (gelatin) · 30 mg
- Market
- US
- Confidence
- Medium
- Sucrose Looks Halal
- Starch (Maize/Potato) Looks Halal
- Magnesium Carbonate Looks Halal
- Microcrystalline Cellulose Looks Halal
- Hypromellose (HPMC) Looks Halal
- Polysorbate 80 Uncertain
- Talc Looks Halal
- Titanium Dioxide Looks Halal
- Iron Oxide (colorant) Looks Halal
- Gelatin Uncertain
- Methacrylic Acid Copolymer (Eudragit) Looks Halal
Tums Antacid (Calcium Carbonate 500 mg)
- Form
- Chewable tablet · 500 mg
- Market
- US
- Confidence
- Medium
- Sucrose Looks Halal
- Starch (Maize/Potato) Looks Halal
- Talc Looks Halal
- Magnesium Stearate Uncertain
Comparison summary
Prevacid 30 mg Capsule (lansoprazole) is Uncertain with Medium confidence. Tums Antacid (Calcium Carbonate 500 mg) is Uncertain with Medium confidence. They share 3 inactive ingredients in our database and differ on 9 others.
Cleaner halal profile in this pair: Tums Antacid (Calcium Carbonate 500 mg) (uncertain) — confirm equivalence and dosing with your clinician before switching.
Inactive ingredient differences
3 shared · 8 only in Prevacid 30 mg Capsule (lansoprazole) · 1 only in Tums Antacid (Calcium Carbonate 500 mg)
Only in Prevacid 30 mg Capsule (lansoprazole)
Only in Tums Antacid (Calcium Carbonate 500 mg)
Shared ingredients (3) appear in both products — open each medicine report for the full list.
Questions about this comparison
- How do Prevacid 30 mg Capsule (lansoprazole) and Tums Antacid (Calcium Carbonate 500 mg) compare for halal status?
- Prevacid 30 mg Capsule (lansoprazole): Uncertain (Medium confidence). Tums Antacid (Calcium Carbonate 500 mg): Uncertain (Medium confidence). RxHalal does not issue religious rulings — use this to ask your pharmacist about sources.
- Which inactive ingredients differ between these two medicines?
- Only in Prevacid 30 mg Capsule (lansoprazole): Magnesium Carbonate, Microcrystalline Cellulose, Hypromellose (HPMC), Polysorbate 80, Titanium Dioxide, Iron Oxide (colorant), Gelatin, Methacrylic Acid Copolymer (Eudragit). Only in Tums Antacid (Calcium Carbonate 500 mg): Magnesium Stearate. Shared: 3 ingredients.
- What should I ask my pharmacist when comparing these medicines?
- What is the source of the fatty acids? Is the gelatin in this capsule bovine, porcine, or fish-derived? Is a vegetarian (HPMC) capsule formulation available?
- Is Tums Antacid (Calcium Carbonate 500 mg) a halal-friendlier option than Prevacid 30 mg Capsule (lansoprazole)?
- In our database, Tums Antacid (Calcium Carbonate 500 mg) ranks cleaner (Fewer flagged excipients (1 vs 3).). Confirm equivalence and dosing with your clinician — not a fatwa.
Clinician-friendly share summary
A neutral 6–10 line summary you can paste into a message or print.