-Amphetamine
-Antibiotics
-Captopril
-Delavirdine
-Gabapentin
-Heart medications, such as digoxin
-Hyoscyamine
-Iron salts
-Isoniazid
-Medications for breathing problems, such as ipratropium or tiotropium
-Medications for diabetes
-Medications for fungal infections, such as itraconazole or ketoconazole
-Medications for osteoporosis, such as alendronate, etidronate, risedronate
-Medications for overactive bladder, such as oxybutynin or tolterodine
-Medications for seizures, such as phenytoin
-Methenamine
-Mycophenolate
-Pancrelipase
-Penicillamine
-Phenothiazines, such as chlorpromazine, mesoridazine, prochlorperazine, thioridazine
-Quinidine
-Rosuvastatin
-Sodium fluoride
-Sodium polystyrene sulfonate
-Sotalol
-Sucralfate
-Tacrolimus
-Thyroid hormones, such as levothyroxine
-Ursodiol
-Vitamin D
-Zalcitabine

They need to know if you have any of these conditions:
-Bowel, intestinal, or stomach disease
-Constipation
-Diarrhea
-Kidney disease
-Liver disease
-On a sodium (salt) restricted diet
-Stomach bleeding or obstruction
-An unusual or allergic reaction to aluminum hydroxide, magnesium hydroxide, simethicone, other medications, foods, dyes, or preservatives
-Pregnant or trying to get pregnant
-Breast-feeding

Tell your care team if your symptoms do not start to get better or if they get worse. Do not treat yourself for stomach problems with this medication for more than 2 weeks. See your care team if you have black tarry stools, rectal bleeding, or if you feel unusually tired. Do not change to another antacid product without advice.
If you are taking other medications, leave an interval of at least 2 hours before or after taking this medication.
To help reduce constipation, drink several glasses of water a day.

Keep out of the reach of children and pets.
Store at room temperature between 15 and 30 degrees C (59 and 86 degrees F). Protect from light and moisture. Throw away any unused medication after the expiration date.