 <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]  Intramuscular: Before receiving this vaccine, tell your health care professional if you are allergic to it; or to other vaccines (such as diphtheria, tetanus, Haemophilus influenzae); or if you have any other allergies. This product may contain inactive ingredients (such as latex or dry natural rubber that can be found in the product packaging), which can cause allergic reactions or other problems. Talk to your health care professional for more details. Before using this vaccine, tell your health care professional your medical history, especially of: vaccination/immunization history, recent illness/fever, immune system disorders (such as due to HIV infection, certain cancers such as leukemia/lymphoma, cancer or radiation treatment). 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 Prevnar 20 (PF) Intramuscular: 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 </s>