Before you begin using a medication, be sure to inform your doctor of any medical conditions or allergies you may have, any medications you are taking, whether you are pregnant or breast-feeding, and any other significant facts about your health. These factors may affect how you should use this medication.
Bleeding problems: There is a risk of increased bleeding or bruising when any intramuscular injection is given to a person who has a bleeding disorder or is taking medications to thin the blood. The safety and effectiveness of this vaccine have not
been established for people with thrombocytopenia (low platelets) or bleeding disorders. If you have these conditions, discuss the risks and benefits of this vaccine with your doctor.
Breathing problems: When given to very premature babies, there is the risk that the vaccine may cause problems breathing, such as the infant temporarily stopping breathing. There is a significant benefit to giving this vaccine to this group of infants.
Discuss the risks and benefits with your doctor and whether any special monitoring is needed.
Fever: A doctor may decide to delay this vaccine if the person receiving the vaccine has an acute infection or fever. Mild infections without fever, such as colds, usually do not require delay of the vaccine.
Immune problems: When used for people with impaired immune systems, meningococcal vaccines may not create enough of an antibody response to protect against infections caused by these bacteria. Also, this vaccine may not be effective for people receiving immunosuppressive therapy (e.g., some medications used to treat cancer or for transplant recipients).
Pre-medication: Your doctor may suggest that infants and children receive antifever medications (e.g., acetaminophen, ibuprofen) before or after receiving the vaccine. Follow the instructions given by your doctor.
Protection: This vaccine can only protect against the types of bacteria specific to this vaccine and, as with other vaccines, may not provide 100% protection for everyone who receives the vaccine.
Pregnancy: This vaccine should only be used during pregnancy if the benefits outweigh the risks. If you discover you were pregnant when you received this vaccine, contact your doctor as soon as possible.
Breast-feeding: It is not known if meningococcal vaccine (group C) passes into breast milk. If you are a breast-feeding mother and may be given this vaccine, it may affect your baby. Talk to your doctor about whether you should continue breast-feeding or
wait until you have stopped breast-feeding to receive the vaccine.
Seniors: The safety and effectiveness of this vaccine has not been established for adults 65 years or older.