MenQuadfi is a vaccine that helps protect you or your child against meningococcal disease caused by four types (A, C, W, and Y) of Neisseria meningitidis bacteria.
MENQUADFI is listed under Health Canada DIN 02507161. The product record and monograph below describe this formulation; the dose schedule comes from the Canadian Immunization Guide.
At a glance
Brand
MENQUADFI
DIN
02507161
Vaccine
Meningococcal A, C, W, Y polysaccharide conjugate
Presentation
0.5 mL · solution · intramuscular · 12 months and older
Live vaccine
No
Age and suitability depend on the product, the person and the reason for vaccination. Use the planner for a starting point and confirm with a healthcare professional.
Official sources
Use the DIN to confirm this exact product in Health Canada's Drug Product Database.
A listed product may not be stocked or publicly funded.
Before and after your vaccination
Bring your immunization record if you have one, so earlier doses can be checked.
Tell the healthcare professional about a serious reaction to a previous vaccine or an ingredient, and mention any health conditions or medicines that could affect your vaccination.
After the dose, stay where you can be observed for at least 15 minutes. Tell someone right away if you feel faint or develop symptoms of an allergic reaction.
Keep a record of the vaccine name, date and dose you received.
The details below are adapted from a Pharmasist patient handout linked to the same product monograph. The current Canadian Immunization Guide determines the dose schedules shown later.
What this vaccine helps prevent
MenQuadfi is a vaccine that helps protect you or your child against meningococcal disease caused by four types (A, C, W, and Y) of Neisseria meningitidis bacteria.
This bacteria can cause serious, sometimes life-threatening infections such as meningitis (infection of the lining around the brain and spinal cord) and blood infections.
MenQuadfi does not protect against meningococcal type B, so your healthcare professional may recommend a separate vaccine for that type.
The vaccine works by causing your body to make its own protection (antibodies) before you are exposed to the bacteria.
What to mention before a dose
Tell your healthcare professional about any allergic reaction you or your child have had to a previous vaccine, especially one containing tetanus toxoid.
Tell your healthcare professional if you or your child has ever been diagnosed with Guillain-Barré syndrome, a nerve condition.
Tell your healthcare professional if you or your child has a bleeding problem, such as hemophilia, or takes blood thinners.
Tell your healthcare professional if you or your child has a weakened immune system, a complement deficiency, or takes a medicine such as eculizumab, since extra protection against meningococcal disease may still be needed even after vaccination.
Tell your healthcare professional if you or your child has a fever or is not feeling well; vaccination may need to wait. A mild cold is usually not a reason to delay.
How it is given
MenQuadfi is given as a shot into the muscle, usually in the upper arm or the outer thigh, depending on age.
A nurse, doctor, or healthcare professional gives the injection; you do not give this vaccine yourself at home.
Babies usually need more than one shot to build full protection, with the final shot given after their first birthday; older children, teens, and adults usually need only one shot.
If you have had a meningococcal vaccine before and remain at ongoing risk, your healthcare professional may recommend a booster shot after enough time has passed.
Important things to know
Severe allergic reactions are rare but can happen with any vaccine. Your healthcare professional will have treatment ready in case this happens.
Some people faint around the time of the injection. You or your child will be watched for a short time after the shot.
This vaccine contains tetanus toxoid but does not replace your regular tetanus vaccinations; keep those up to date separately.
Effects you may notice
Pain, redness, or swelling where the shot was given.
Muscle aches.
Headache.
A general feeling of being unwell.
Mild fever.
In babies and toddlers: fussiness, sleepiness, and reduced appetite.
Chills and tiredness, especially in older adults.
When to contact a healthcare professional
Contact your healthcare professional if a side effect is bothersome, does not go away, or interferes with daily activities.
Contact your healthcare professional if you are not sure whether a reaction after the shot is expected or needs attention.
When to get emergency help
Get emergency help right away for signs of a severe allergic reaction, such as swelling of the face, lips, or throat, hives all over the body, trouble breathing, or fainting.
Get help right away if you or your child has a seizure (fit) after vaccination.
Get help right away for sudden weakness, tingling, or trouble moving that spreads over hours or days, which could be a sign of a rare nerve problem.
Other medicines and vaccines
Tell your healthcare professional about all medicines you or your child take, including vitamins and natural health products.
This vaccine can usually be given at the same time as other routine vaccines, but at a different injection site.
Food and drink do not affect this vaccine, since it is given as an injection, not swallowed.
Key points to remember
Bring your immunization record, or your child's, to every vaccination visit.
No vaccine gives complete protection, but MenQuadfi greatly lowers the risk of serious illness from four common meningococcal types.
These are Canadian Immunization Guide schedules associated with this DIN. The right schedule depends on age, health, prior doses and reason for vaccination. Public health recommendations may differ from a product monograph's authorized schedule.
Meningococcal ACYW — toddler dose at 12 to 23 months
1 dose
One dose of quadrivalent (Men-C-ACYW) conjugate vaccine at 12 to 23 months.
NACI (May 2026): all children 12 to 23 months of age should receive one dose of quadrivalent meningococcal conjugate (Men-C-ACYW) vaccine, replacing the Men-C-C toddler dose. A child who already had Men-C-C at 12 to 23 months is not revaccinated. MENQUADFI is authorized from 12 months, NIMENRIX from 6 weeks, MENVEO from 2 months.
Meningococcal ACYW — routine adolescent or adult, one dose
1 dose
One dose of Men-C-ACYW conjugate vaccine, routinely given at about 12 years of age.
Routine single adolescent dose regardless of infant or toddler history; also for adults with travel, occupational or outbreak indications.
Meningococcal ACYW — high-risk conditions, two doses
2 doses
Two doses 8 weeks apart for asplenia, complement deficiency, HIV and other high-risk conditions.
For people 12 months and older with no spleen or a spleen that does not work, complement or properdin deficiency (including eculizumab or ravulizumab treatment), HIV, or other high-risk conditions. Two doses at least 8 weeks apart (4 weeks if accelerated). A booster every 5 years while risk continues (every 3 years if first immunized under 7 years of age).
General information only. A suggested date is not an appointment or a prescription; a healthcare professional confirms what you need. Clinical rules reviewed on 2026-09-27.