 <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]  Canada, you may call the Vaccine Safety Section at Public Health Agency of Canada at 1-866-844-0018.The precautions of Havrix (PF) Intramuscular: Before getting hepatitis A vaccine, tell your health care professional if you are allergic to it; or if you have any other allergies. This product may contain inactive ingredients (such as neomycin, formalin, latex in some vials/prefilled syringes), which can cause allergic reactions or other problems. Talk to your health care professional for more details. Before receiving this vaccine, tell your health care professional your medical history, especially of: current illness with fever. If you have immune system disorders (such as due to HIV infection, certain cancers such as leukemia/lymphoma, cancer or radiation treatment), your body may not make enough antibodies to protect you from hepatitis A infection. Antibody levels should be checked after the vaccine series. During pregnancy, this vaccine should be used only when clearly needed. Discuss the risks and benefits with your health care professional. It is unknown if this vaccine passes into breast milk. Consult your health care professional before breast-feeding.The interactions of Havrix (PF) Intramuscular: Drug interactions may change how </s>