Do not take this medication with any of the following:
-Ammonium chloride
-Methenamine
This medication may also interact with the following:
-Antibiotics like ciprofloxacin, tetracycline
-Captopril
-Delavirdine
-Gabapentin
-Iron supplements
-Medications for fungal infections like ketoconazole and itraconazole
-Medications for seizures like ethotoin and phenytoin
-Mycophenolate
-Quinidine
-Rosuvastatin
-Sucralfate
-Thyroid medication

They need to know if you have any of these conditions:
-Constipation
-Dehydration
-High blood calcium levels
-Kidney disease
-Stomach bleeding, obstruction, or ulcer
-An unusual or allergic reaction to calcium carbonate, 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). Throw away any unused medication after the expiration date.