How long is Children's liquid pain reliever (acetaminophen or ibuprofen suspension) good for?
Updated 2026-08-10 · Source: FDA / label general guidance · Free · No sign-up
Go by the expiration date printed on the package. For most OTC medicines, opening the container doesn't start a shorter countdown — storage is what actually shortens a medicine's life.
Printed date
No countdown to draw — Children's liquid pain reliever (acetaminophen or ibuprofen suspension) goes by the date on the package, not by when you opened it.
Source: FDA / label general guidance · Category: Medicine
Storage
Store at: Room temperature 68–77°F (20–25°C), tightly capped, upright, away from heat and light — do not freeze
Refrigerate after opening: No — keep it at room temperature
Tip: Use by the expiration date printed on the carton or bottle, and shake well before every dose. Don't refrigerate unless the label says to. An OTC suspension is not the same as a pharmacist-mixed antibiotic — those DO carry a short after-mixing date (often 10–14 days) printed on the pharmacy label, so always read that label. Not medical advice — dosing for children is weight-based; follow the label and ask your pharmacist or paediatrician.
Scope: These label quotes are from the Children's TYLENOL (acetaminophen) oral suspension label. If you have an ibuprofen suspension (Children's Motrin or a store brand), read its own carton — that figure is not taken from it. The FDA lines are general guidance for medicines.
Published storage guidance, quoted from Children's TYLENOL (acetaminophen) oral suspension label, via DailyMed (NIH/NLM) and U.S. Food and Drug Administration:
Not the bathroom cabinet — damp and heat degrade medicine“Improper storage – such as a damp bathroom cabinet – can contribute to decreased effectiveness in medicines that have not reached their posted expiration date.” — U.S. Food and Drug Administration
A cool, dry place: a drawer, closet shelf, or kitchen cabinet“For most medicines, to help ensure the proper shelf life of your medicine, it is better to store medicine in a cool, dry place such as a dresser drawer, storage box, closet shelf, or kitchen cabinet.” — U.S. Food and Drug Administration
Go by the printed expiration date on the label or carton“The expiration date can be found printed on the label or stamped onto the bottle or carton, sometimes following “EXP.” It is important to know and stick to the expiration date on your medicine.” — U.S. Food and Drug Administration
How to tell if Children's liquid pain reliever (acetaminophen or ibuprofen suspension) has gone bad
Separation or settling that won't shake back in
Colour change
Crystals or grittiness
Past the printed expiration date
General guidance for medicines — not medical advice. Follow the label and ask a pharmacist; never take a medicine that's expired or has changed.
Air and warmth are what shorten an opened item's life — the right container buys back the days the packaging gives up once the seal's broken.
Does Children's liquid pain reliever (acetaminophen or ibuprofen suspension) expire?
Yes — Children's liquid pain reliever (acetaminophen or ibuprofen suspension) carries a printed expiration date and that's the date to go by. Use by the expiration date printed on the carton or bottle, and shake well before every dose. Don't refrigerate unless the label says to. An OTC suspension is not the same as a pharmacist-mixed antibiotic — those DO carry a short after-mixing date (often 10–14 days) printed on the pharmacy label, so always read that label. Not medical advice — dosing for children is weight-based; follow the label and ask your pharmacist or paediatrician.
How should Children's liquid pain reliever (acetaminophen or ibuprofen suspension) be stored?
Room temperature 68–77°F (20–25°C), tightly capped, upright, away from heat and light — do not freeze. Heat and humidity shorten a medicine's real life faster than the printed date suggests, which is why a bathroom cabinet is the worst place for it. Published guidance, by source: Children's TYLENOL (acetaminophen) oral suspension label, via DailyMed (NIH/NLM) — Store between 68–77°F (20–25°C); Do not use if the safety seal or bottle wrap is broken or missing. U.S. Food and Drug Administration — Not the bathroom cabinet — damp and heat degrade medicine; A cool, dry place: a drawer, closet shelf, or kitchen cabinet; Go by the printed expiration date on the label or carton. These label quotes are from the Children's TYLENOL (acetaminophen) oral suspension label. If you have an ibuprofen suspension (Children's Motrin or a store brand), read its own carton — that figure is not taken from it. The FDA lines are general guidance for medicines. Check the printed date and ask a pharmacist.
When should you throw out Children's liquid pain reliever (acetaminophen or ibuprofen suspension)?
Throw it out if you notice: Separation or settling that won't shake back in; Colour change; Crystals or grittiness; Past the printed expiration date. Not medical advice — ask a pharmacist if you're unsure.