Simethicone 125 mg
Gas-X and its twins. Antigas. Active ingredients: Simethicone 125 mg.
19 options at Walmart, Amazon, Target, Kroger, Walgreens, CVS. Cheapest: 6.5¢ per pill; typical Gas-X: 34¢ per pill. Prices are estimates from Oct 2026.
Cheapest options
- Equate Extra Strength Gas Relief Softgels 125 mg — Walmart, 100 pills, $6.48 (6.5¢ per pill)
- Amazon Basic Care Gas Relief Softgels 125 mg — Amazon, 50 pills, $4.99 (10.0¢ per pill)
- up&up Extra Strength Gas Relief Softgels 125 mg — Target, 50 pills, $5.29 (11¢ per pill)
- Kroger Extra Strength Gas Relief Softgels 125 mg — Kroger, 50 pills, $5.99 (12¢ per pill)
- Walgreens Gas Relief Extra Strength Softgels 125 mg — Walgreens, 50 pills, $9.99 (20¢ per pill)
- CVS Health Extra Strength Gas Relief Softgels 125 mg — CVS, 50 pills, $10.99 (22¢ per pill)
- Gas-X Extra Strength Chewable Tablets, Simethicone 125 mg — Walmart, 48 pills, $10.97 (23¢ per pill)
- Gas-X Extra Strength Chewable Tablets, Simethicone 125 mg — Amazon, 48 pills, $11.49 (24¢ per pill)
Where to find it
Look for the “Digestive Health” aisle sign.
Good to know
- Gas-X Extra Strength chewables and softgels both contain simethicone 125 mg; Gas-X Ultra Strength (180 mg), Maximum Strength (250 mg) and Ultimate Strength (500 mg) contain more per pill.
- The FDA's NDC directory records simethicone products under the substance name "dimethicone"; the Drug Facts labels say simethicone.
- Gas-X Total Relief adds calcium carbonate (an antacid), so it is a different product.