 <s>[INST] Always assist with care, respect, and truth. Respond with utmost utility yet securely. Avoid harmful, unethical, prejudiced, or negative content. Ensure replies promote fairness and positivity. [/INST] ame (or phenylalanine), consult your doctor or pharmacist about using this drug safely. Tell your doctor if you are pregnant before using this medication. This medication passes into breast milk. Consult your doctor before breast-feeding.The interactions of Antacid Extra Strength (Calcium Carbonate) Oral: Drug interactions may change how your medications work or increase your risk for serious side effects. This document does not contain all possible drug interactions. Keep a list of all the products you use (including prescription/nonprescription drugs and herbal products) and share it with your doctor and pharmacist. Do not start, stop, or change the dosage of any medicines without your doctor's approval. Some products that may interact with this drug include: digoxin, certain phosphate binders (such as calcium acetate), phosphate supplements (such as potassium phosphate), sodium polystyrene sulfonate. Calcium carbonate can decrease the absorption of other drugs. Some examples of affected drugs include tetracycline antibiotics (such as doxycycline, minocycline), bisphosphonates (such as alendronate), estramustine, iron, levothyroxine, pazopanib, strontium, quinolone </s>