Adult Dosing

Relief of symptoms associated with upset stomach

Gas-X Extra Strength with Maalox

• Chew 1-2 tabs [500 mg/125 mg to 1000 mg/250 mg] PO PRN
• Max: 4 tabs [2000 mg/500 mg]/day x 2 wks

Maalox Advanced Maximum Strength Chewable

• Chew 1-2 tabs [1000 mg/60 mg to 2000 mg/120 mg] PO PRN
• Max: 8 tabs [8000 mg/480 mg]/day x 2 wks

Rolaids Extra Strength Plus Gas Relief

• Chew 2-3 tabs [2354 mg/160 mg to 3531 mg/240 mg] PO q1hr PRN
• Max: 6 tabs [7062 mg/480 mg]/day

Pediatric Dosing

Relief of symptoms associated with upset stomach

Maalox Advanced Maximum Strength Chewable

• Children >12 yrs
• Chew 1-2 tabs [1000 mg/60 mg to 2000 mg/120 mg] PO PRN
• Max: 8 tabs [8000 mg/480 mg]/day x 2wks

Maalox Junior Relief

• Children 6-11 yrs
• Chew 2 tabs [800 mg/48 mg] PO PRN
• Max: 6 tabs [2400 mg/144 mg]/day x 2wks

• Relief of symptoms associated with upset stomach such as heartburn, acid indigestion, sour stomach and bloating, pressure, and discomfort commonly referred to as gas

• Hypersensitivity to any of the ingredients of the product
• GI obstruction
• Hypercalcemia
• Hypophosphatemia
• Intestinal perforation
• Nephrolithiasis

• N/A

Renal Dose Adjustment

• Renal impairment: Dose adjustments not defined

Hepatic Dose Adjustment

• Hepatic impairment: Dose adjustments not defined

See Supplemental Patient Information

• Antacids may increase/decrease the rate or degree of absorption of concomitantly administered oral drugs by changing GI transit time or by binding the drug
• Do not use more than the maximum recommended dose and for more than 2 weeks. If symptoms persist for more than 2 wks, discontinue therapy and further evaluate the patient

Cautions: Use cautiously in

• Kidney stones
• Calcium-restricted diet

Supplemental Patient Information

• Before initiating therapy, instruct patients to promptly inform their clinician if they are having kidney stones or if they are currently on calcium-restricted diet
• Advise patients to inform their physician if they are taking any prescribed drug

Pregnancy Category:C

Breastfeeding: Simethicone is not absorbed orally; hence, it cannot be transferred to breastmilk. It can be used safely in breastfed infants. No special precautions are required. This information is based upon Lactmed database (available at http://toxnet.nlm.nih.gov/cgi-bin/sis/htmlgen?LACT last accessed 12 July 2011).

• GI: Constipation

Calcium carbonate

• Antacid; acts by neutralizing hydrochloric acid in gastric secretions and also inhibits the action of pepsin by increasing the pH and via adsorption
• Metabolism: Unknown
• Absorbed from the GI tract in the presence of vitamin D
• Excretion: Primarily in feces (80%), minimally in urine (20%)
• Half-life: Unknown

Simethicone

• Antiflatulent; relieves flatulence by inducing dispersion and preventing formation of mucus-surrounded gas pockets in GI tract
• No systemic absorption
• Metabolism: Unknown
• Excreted unchanged in feces (100% unchanged)
• Half-life: Unknown

US Trade Name(s)

• Gas-X Extra Strength with Maalox
• Maalox Advanced Maximum Strength Chewable
• Maalox Junior Relief
• Rolaids Extra Strength Plus Gas Relief

US Availability

Gas-X Extra Strength with Maalox (calcium carbonate/simethicone)

• OTC CHEW TABS: 500 mg/125 mg

Maalox Advanced Maximum Strength Chewable (calcium carbonate/simethicone)

• OTC CHEW TABS: 1000 mg/60 mg

Maalox Junior Relief (calcium carbonate/simethicone)

• OTC CHEW TABS: 400 mg/24 mg

Rolaids Extra Strength Plus Gas Relief (calcium carbonate/simethicone)

• OTC CHEW TABS: 1177 mg/80 mg

Canadian Trade Name(s)

• Gastrocalm Comprimes
• Maalox Extra Strength with Antigas Chewable Tablets
• Rolaids Ultra Strength Plus Gas

Canadian Availability

Gastrocalm Comprimes (calcium carbonate/simethicone)

• OTC CHEW TABS: 400 mg/51.2 mg

Maalox Extra Strength with Antigas Chewable Tablets (calcium carbonate/simethicone)

• OTC CHEW TABS: 1000 mg/60 mg

Rolaids Ultra Strength Plus Gas (calcium carbonate/simethicone)

• OTC TABS: 1177 mg/80 mg

UK Trade Name(s)

• N/A

UK Availability

• N/A

Australian Trade Name(s)

• N/A

Australian Availability

• N/A

Gastrointestinal

Antacids