Components:
Medically reviewed by Kovalenko Svetlana Olegovna, PharmD. Last updated on 26.06.2023

Attention! Information on this page is intended only for medical professionals! Information is collected in open sources and may contain significant errors! Be careful and double-check all the information on this page!
Treating acid indigestion, heartburn, gas, and sour stomach. It may also be used for other conditions as determined by your doctor.
Magaldrate (Ph4)/Simethicone (Ph4) Suspension is an antacid and antiflatulent combination. The antacid works by neutralizing stomach acid and increasing the pH of the stomach. The antiflatulent works by breaking up gas bubbles, which makes gas easier to eliminate.
Treating acid indigestion, heartburn, gas, and sour stomach. It may also be used for other conditions as determined by your doctor.
Magaldrate (Ph4)/Simethicone (Ph4) suspension is an antacid and antiflatulent combination. The antacid works by neutralizing stomach acid and increasing the pH of the stomach. The antiflatulent works by breaking up gas bubbles, which makes gas easier to eliminate.
Applies to the following strengths: 540 mg-40 mg/5 mL; 480 mg-20 mg; 1080 mg-30 mg; 1080 mg-40 mg/5 mL
Usual Adult Dose for:
- Dyspepsia
- Flatulence
Additional dosage information:
- Renal Dose Adjustments
- Liver Dose Adjustments
- Precautions
- Dialysis
Usual Adult Dose for Dyspepsia
1 to 2 teaspoonfuls after meals and at bedtime.
Usual Adult Dose for Flatulence
1 to 2 teaspoonfuls after meals and at bedtime.
Renal Dose Adjustments
Data not available
Liver Dose Adjustments
Data not available
Precautions
Magaldrate (Ph4) should be used with caution in patients with renal impairment to avoid hypermagnesemia and toxicity.
Doses of Simethicone (Ph4) greater than 500 mg a day are generally not recommended.
Dialysis
Data not available
Further information
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.
Medical Disclaimer
More about Magaldrate (Ph4)/Simethicone (Ph4)
- Magaldrate (Ph4)/Simethicone (Ph4) Side Effects
- During Pregnancy
- Drug Interactions
- 2 Reviews
- Drug class: antacids
Consumer resources
- Magaldrate (Ph4) and Simethicone (Ph4)
Related treatment guides
- Gas
- Indigestion
See also:
What is the most important information I should know about Ph4?
Do NOT use Magaldrate (Ph4)/Simethicone (Ph4) Suspension if:
you are allergic to any ingredient in Magaldrate (Ph4)/Simethicone (Ph4) Suspension.
you have a history of kidney problems.
you are taking citrate salts (found in some calcium supplements, antacids, and laxatives).
Contact your doctor or health care provider right away if any of these apply to you.
Use Magaldrate (Ph4)/Simethicone (Ph4) suspension as directed by your doctor. Check the label on the medicine for exact dosing instructions.
- Magaldrate (Ph4)/Simethicone (Ph4) suspension may be taken with or without food.
- Shake well before using.
- If you miss a dose of Magaldrate (Ph4)/Simethicone (Ph4) suspension and you are taking it regularly, take it as soon as possible. If several hours have passed or if it is nearing time for the next dose, do not double the dose to catch up, unless advised by your health care provider. Do not take 2 doses at once.
Ask your health care provider any questions you may have about how to use Magaldrate (Ph4)/Simethicone (Ph4) suspension.
Some MEDICINES MAY INTERACT with Magaldrate (Ph4)/Simethicone (Ph4) Suspension. Tell your health care provider if you are taking any other medicines, especially any of the following:
Anticoagulants (eg, warfarin), citrate salts (found in some calcium supplements, antacids, and laxatives), or quinidine because their actions and side effects may be increased by Magaldrate (Ph4)/Simethicone (Ph4) Suspension
Bisphosphonates (eg, alendronic acid), cation exchange resins (eg, sodium polystyrene sulfonate), cephalosporins (eg, cefaclor), imidazoles (eg, fluconazole), mycophenolate, penicillamine, quinolones (eg, ciprofloxacin), tetracyclines (eg, doxycycline), or thyroid hormones because their effectiveness may be decreased by Magaldrate (Ph4)/Simethicone (Ph4) Suspension
This may not be a complete list of all interactions that may occur. Ask your health care provider if Magaldrate (Ph4)/Simethicone (Ph4) Suspension may interact with other medicines that you take. Check with your health care provider before you start, stop, or change the dose of any medicine.
See also:
What are the possible side effects of Ph4?
Applies to Magaldrate (Ph4) / Simethicone (Ph4): suspension
Check with your doctor if any of these most COMMON side effects persist or become bothersome:
Constipation; diarrhea; intestinal pain.
Seek medical attention right away if any of these SEVERE side effects occur while taking Magaldrate (Ph4) / Simethicone (Ph4):
Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); black, tarry stools; loss of appetite; muscle weakness; nausea; slow reflexes; vomiting; vomit that looks like coffee grounds.