Acetaminophen Suppository Directions by Age: What the Box Covers

FeverAll makes three strengths and each carton is labeled for a different age band: 80 mg infant, 120 mg children's, 325 mg junior. This page maps which carton is which, because Amazon's listing titles do not, and then stops. How many and how often are printed on the box you buy, and the box is the only correct source for them. Prices verified via the Amazon Creators API on September 5, 2026.

By The Pharmacy Desk2026-09-05~9 min read Ranked on verified label facts, never box claimsHow we research

Acetaminophen suppositories come in three strengths and each carton is labeled for a different age band: 80 mg is the infant strength, 120 mg is the children's, and 325 mg is the junior. That is the map, and it is the useful part of this page, because the milligram number is the thing your pediatrician will name and the thing you have to match when you buy. FeverAll Infant 80 mg was $12.73 for 6 on September 5, 2026 (verified via the Amazon Creators API), the 120 mg carton $15.09, and the 325 mg carton $9.40.

What this page will not do is tell you how many to give or how often. Those directions are printed on the carton you buy, along with the weight guidance the box carries, and they are deliberately the only place we will send you. Acetaminophen is a genuinely useful medicine with a genuinely real ceiling, and a number typed on a website by someone who has not seen your carton or your child is the wrong kind of help. Read the Drug Facts panel, follow it exactly, and call the pediatrician when the panel tells you to.

One instruction outranks every carton on this page: any fever in an infant under 3 months is a call to the doctor before any medicine is given at all. After that, the label's own lines apply: fever lasting more than 3 days is a call, symptoms getting worse is a call, and you never give two acetaminophen products at once because the amounts add together. We read Drug Facts panels and verify live listings; we are not clinicians, nothing here is medical advice, and if you buy through a link we may earn an Amazon commission at no cost to you.

The short version

  • Three strengths, three age bands: 80 mg infant, 120 mg children's, 325 mg junior, each printed on its own carton.
  • Amazon's listing titles do not follow that ladder. The 120 mg listing carries the word Infant and the 325 mg listing carries the word Children, while both print the correct milligram figure.
  • How many and how often, and any weight guidance, are printed on the carton. This page prints none of them, on purpose.
  • Any fever in an infant under 3 months is a call to the doctor before medicine of any kind.
  • Never give an acetaminophen suppository alongside an oral acetaminophen product. Same drug, amounts add.

Our top-rated suppositories

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Pedia-Lax Liquid Glycerin, Kids

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FeverAll Infant 80 mg

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FeverAll Infant 80 mg

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What you'll need

The six things that go in the same cart as a suppository: the pharmacy-standard glycerin, a daily stool softener, an enema for the nights nothing else works, witch hazel wipes, sitz salts, and a barrier ointment. Prices are approximate at time of writing.

The three strengths, and what each carton is labeled for

FeverAll is effectively the whole acetaminophen suppository shelf in the United States, and it makes three strengths. Each carton prints the age band it is labeled for on its Drug Facts panel, and the table below is the map most parents are looking for when they land here.

CartonStrengthLabeled forCountPrice (9/5/26)
FeverAll Infant80 mgInfants, 6 to 36 months per the carton, with under 6 months sent to a doctor6$12.73
FeverAll Children's120 mgChildren, 3 to 6 years per the carton6$15.09
FeverAll Junior325 mgJuniors, 6 to 12 years per the carton6$9.40

Two things to hold onto. First, the age bands above are what the cartons are labeled for, and the carton you actually receive is the authority: check it when it arrives rather than when you need it. Second, the table stops at age bands on purpose. It does not carry a column for how many, how often, or a maximum, because those belong to the box and vary with the weight guidance printed there.

Where the bands overlap, the pediatrician decides. Six years sits at the boundary between the children's and junior cartons, and a child's weight matters as well as their age. That is exactly the sort of judgement a label hands to a clinician, and it is why the useful instruction from a pediatrician is a milligram number rather than a brand name.

Why Amazon's titles cannot be trusted here

This is the single most practical warning on the page. FeverAll's strength ladder runs 80 mg infant, 120 mg children's, 325 mg junior. Amazon's listing titles do not track it.

  • The 120 mg listing carries the word Infant in its Amazon title.
  • The 325 mg listing carries the word Children in its Amazon title.

Both listings print their correct milligram figure, which is the saving grace: the number is reliable even where the descriptive word is not. That is why every page on this site tells you to buy the number rather than the word, and why we ask readers to do a three-way check before ordering: the number your pediatrician named, the number in the listing title, and the number in the Drug Facts panel photograph on the listing page.

Where a listing publishes no strength at all, as the paraben free version at $22.00 and the pack of 4 at $35.74 do not, choose a listing that does. There is no version of this shelf where guessing at the strength is acceptable.

What the box tells you that this page will not

Every Drug Facts panel on this shelf carries four things we deliberately leave to it, and it is worth knowing exactly what you are looking for when the carton is in your hand.

  • How many. The number of suppositories per dose, printed by age and, on these cartons, alongside weight guidance.
  • How often. The interval between doses.
  • The daily ceiling. The maximum in 24 hours.
  • The weight guidance. The infant carton in particular carries weight information beside its age band, and weight can matter more than age at the edges.
Why we hold this line: a dosing number is only correct in the context of a specific carton, a specific strength and a specific child. Publishing one on a web page strips all three of those away, and acetaminophen is the household medicine where that error does the most harm. The panel costs you thirty seconds to read and it is written for exactly this purpose.

If the panel is unclear, or if the carton you have does not match what your pediatrician described, a pharmacist can read it with you in under a minute. That is a better use of a phone than a search engine.

The call lines that come before any dose

These are the label's own instructions and the American Academy of Pediatrics guidance parents are most often given, and they outrank everything on the carton.

  • Any fever in an infant under 3 months is a call to the doctor before any medicine is given at all. Not a smaller dose, not a gentler route. A call.
  • Fever lasting more than 3 days, or a fever that resolves and then returns, is a call.
  • A child getting worse rather than better, unusually drowsy, refusing fluids, or developing new symptoms, is a call regardless of the thermometer.
  • Never combine acetaminophen products. A suppository and an oral syrup are the same drug and the amounts add. Check every other medicine in the house, including combination cold products, where acetaminophen appears under several names.

A fever reducer treats a number and buys comfort. It does not treat what caused the fever, and a child who seems unwell in a way the thermometer does not explain still needs the call. For the decision about whether the rectal route is the right one at all, read when to use a fever suppository.

Age bands are not the only variable

Parents often arrive looking for a chart that turns an age into a number, and the labels resist that for good reasons. Weight matters, particularly at the edges of a band: two six year olds can differ substantially, and the carton's own weight guidance exists because of it. The reason for the fever matters, which is a clinical question. And whether a fever needs treating at all is a judgement rather than a reflex, because a comfortable child with a modest temperature may need nothing.

What a parent can control precisely is the purchase. Buy the strength you were told to buy, confirm it three ways before ordering, and check the carton against that number when it arrives. Then the panel in your hand is the right panel, and following it is simple.

One carton, one strength, one child. Do not keep several strengths of the same product in the same drawer if you can avoid it, and if you must, keep them clearly separated. Reaching into a drawer at 2 a.m. is not the moment to distinguish between two nearly identical cartons.

Cutting, splitting and improvising: no

The most common workaround people consider on this shelf is cutting a suppository to make a smaller amount. No label on this shelf supports it. Acetaminophen suppositories are manufactured at fixed strengths and their panels print no partial dose, so splitting one means guessing at how much of the drug is in a piece, with no way to check.

The strengths exist as separate products precisely so nobody has to guess. If the strength you need is not the carton you have, the answer is to buy the correct carton rather than to modify the wrong one, and in the meantime to ask a pharmacist or the pediatrician what to do tonight. Our category-wide page on the subject is can you cut a suppository.

The same applies in reverse: do not give two smaller suppositories to approximate a larger one. That is a dosing decision, it belongs to a clinician, and the carton does not authorise it.

Storage, expiry and the practical details

A suppository that has softened is difficult to insert and easy to waste, which is a bad discovery at 3 a.m. Follow the storage line on your carton; as a category these products keep best cool, and many labels say to refrigerate if they soften. Keep the foil strip inside its carton so the strength stays visible, and keep it well out of a child's reach.

Check the expiry date when the carton arrives rather than when you need it, and note that a household with a small child may keep one of these cartons for a long time without opening it. That is the correct outcome. More on both points in how to store suppositories, do suppositories expire, and what to do when a suppository melts.

How to give a child a rectal acetaminophen suppository

  1. 1

    Confirm the carton first

    Check that the milligram strength on the carton matches what your pediatrician named. Then read the Drug Facts directions on that carton for how many and how often. Those numbers come from the box, never from a website.

  2. 2

    Wash your hands

    Wash and dry your hands before and after. If you prefer, wear a clean disposable glove for the process.

  3. 3

    Keep the suppository firm

    Leave it in its wrapper until the moment you use it. If it has softened in a warm room, chill it briefly in its wrapper until it is firm again rather than trying to use a soft one.

  4. 4

    Position the child

    Lay the child on their side with the upper knee drawn toward the chest, or on their back with the knees raised for a small baby. Have everything you need within reach so you are not leaving them halfway through.

  5. 5

    Unwrap and insert gently

    Unwrap the suppository and insert it gently, rounded end first, only as far as the directions on your carton describe. Never force it, and stop if there is resistance.

  6. 6

    Hold the buttocks together briefly

    Hold gently together for a short moment so the suppository stays in place, then let the child settle. Keeping them lying down for a few minutes helps.

  7. 7

    Wash your hands and note the time

    Wash your hands again and write down the time and the strength you gave. That note is what stops a second dose or a second acetaminophen product being given too soon by someone else in the house.

  8. 8

    Watch, and call when the label says to

    Any fever in an infant under 3 months, fever lasting more than 3 days, or a child getting worse is a call to the doctor. So is any uncertainty about how much was given.

Ready to buy? Start with our top picks

Whatever this guide steered you toward, here's where most readers land, ranked on verified label facts and value. Live price check on each.

Fleet Glycerin, Adult 50 ct

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Dulcolax Bisacodyl 10 mg

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Preparation H Suppositories

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pH-D Boric Acid 600 mg

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Pedia-Lax Liquid Glycerin, Kids

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FeverAll Infant 80 mg

Best Fever

FeverAll Infant 80 mg

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As an Amazon Associate we earn from qualifying purchases, at no cost to you.

Key terms

Drug Facts panel
The standardised label on every over-the-counter medicine, listing the active ingredient and strength, uses, warnings, directions by age, and storage. On this shelf it is the only correct source for how many and how often, which is why this page reports age bands and stops.
Strength ladder
FeverAll's three cartons: 80 mg infant, 120 mg children's, 325 mg junior. The milligram number is what a pediatrician names and what you must match when buying, since Amazon's descriptive title words do not reliably track the ladder.
Rectal route
Delivery of a medicine through the rectal lining rather than the stomach. It exists for children who cannot keep an oral product down. It is not stronger or gentler than oral, it is simply available when oral is not.
Doubling up
Giving two products containing the same active ingredient in the same window, so the amounts add together. With acetaminophen this is the commonest cause of accidental overshoot in a household, because the drug appears in many combination products under several names.
The under-3-months rule
Any fever in an infant younger than 3 months is a call to the doctor before any medicine is given. It is the instruction that outranks every carton on this page and it is not a cautious hedge.

Questions, answered

What age is each FeverAll strength for?

The cartons are labeled by band: 80 mg is the infant strength, covering 6 to 36 months on the carton with babies under 6 months sent to a doctor; 120 mg is the children's strength, covering 3 to 6 years; and 325 mg is the junior strength, covering 6 to 12 years. Check the carton you receive, because it is the authority. What the carton also prints, and this page does not, is how many and how often, along with weight guidance.

How much acetaminophen suppository should I give my child?

Read the Drug Facts panel on the carton you bought, and follow it exactly. We do not publish a number of suppositories, an interval, or a daily maximum on this site, because those are only correct in the context of a specific strength, a specific carton, and a specific child, and acetaminophen has a real ceiling. If the panel is unclear or the carton does not match what you were told, a pharmacist can read it with you in a minute.

Can I give a suppository based on my child's weight?

The carton carries weight guidance alongside its age band, particularly the infant carton, and that guidance on your own box is what to follow. We do not print weight-based amounts here, because a figure lifted from a website cannot account for which strength you are holding. If your pediatrician has given you a weight-based instruction for your child, that instruction is theirs and it is the one to follow.

Which FeverAll should I buy if my child is 6 years old?

Six sits at the boundary between the children's and junior cartons, so it is exactly the case where a pediatrician should name the milligram number rather than a parent choosing from a chart. Weight matters as well as age at a boundary like that. Once you have the number, buy it carefully: the 120 mg listing carries the word Infant on Amazon and the 325 mg listing carries the word Children, so match the figure and not the word.

How often can I give an acetaminophen suppository?

The interval is printed on the carton and it is the only correct source. What we will say plainly is the rule around it: never give a second product containing acetaminophen in the same window, by any route, because the amounts add together. If a dose seems to have been lost, for example a syrup that came straight back up, that is a question for a pediatrician or a pharmacist rather than a guess.

Can I cut a suppository in half for a smaller child?

No, and no label on this shelf permits it. These are manufactured at fixed strengths with no partial dose printed on the panel, so splitting one means guessing at how much drug is in a piece with no way to verify. The three strengths exist as separate products precisely to remove that guess. Buy the correct strength instead, and ask a pharmacist what to do in the meantime if you are caught short.

When should I call the doctor instead of giving a suppository?

Any fever in an infant under 3 months is a call before any medicine at all. Beyond that: fever lasting more than 3 days, a fever that resolves and returns, or a child who is getting worse, unusually drowsy, refusing fluids or developing new symptoms. A fever reducer moves a number and buys comfort; it does not treat the cause, so a child who seems unwell in a way the thermometer does not explain still needs the call.

Do acetaminophen suppositories work as well as oral?

Both are the same active ingredient labeled as a pain reliever and fever reducer, and the rectal route exists because a child who is vomiting or refusing cannot use the oral one. It is not a stronger or a gentler version. The practical differences are cost, since a bottle of oral suspension holds many more doses than a six count carton, and measurement, since a suppository is a fixed amount. Our suppository vs oral acetaminophen page compares them properly.