 <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] iferol (vitamin D3) in this medication passes into breast milk. It is unknown if alendronate passes into breast milk. Consult your doctor before breast-feeding.The interactions of Alendronate-Cholecalciferol (Vitamin D3) 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. Vitamin D3 is very similar to calcitriol. Do not use medications containing calcitriol while using vitamin D3. Does Alendronate-Vitamin D3 Tablet interact with other drugs you are taking? Enter your medication into the WebMD interaction checker Check InteractionThe overdose of Alendronate-Cholecalciferol (Vitamin D3) Oral: If someone has overdosed and has serious symptoms such as passing out or trouble breathing, call 911. Otherwise, call a poison control center right away. US residents </s>