 <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]  12 unless directed by the doctor. Older adults may be more sensitive to the side effects of this drug, especially mental/mood changes (such as confusion), seizure, or unusual tiredness. During pregnancy, this medication should be used only when clearly needed. Discuss the risks and benefits with your doctor. Tell your doctor if you are pregnant before using this medication. This drug passes into breast milk. Consult your doctor before breast-feeding.The interactions of Pepcid Complete Oral: See also How To Use section. 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: bisphosphonates (such as alendronate), tetracycline antibiotics (such as doxycycline, minocycline), quinolone antibiotics (such as ciprofloxacin, levofloxacin), calcium channel blockers (such as diltiaz </s>