Suppositories for a Child's Fever: What They Are and How to Give Them
A suppository is a small dose of fever medicine inserted into the back passage, useful when your child is vomiting, refusing medicine by mouth, or asleep. Here's what they are, which medicines come this way, how to give one step by step, and what to do if it comes back out.
What is a suppository, and when does it make sense?
A suppository is a small, solid dose of medicine that is inserted into the back passage (rectum), where it dissolves and is absorbed into the bloodstream through the lining of the rectum. For fever, it is the same medicine as the syrup or tablet version, just given by a different route.
It is most useful when the usual route is not working: your child is vomiting and cannot keep oral medicine down, refuses to take medicine by mouth, or is asleep and you do not want to fully wake them for a dose. It is not a stronger or faster version of the medicine, just an alternative way to give it.
Which fever medicines come as suppositories
- Paracetamol suppositories, the most commonly used option, available in a range of strengths for different ages and weights.
- Ibuprofen suppositories, less commonly stocked but available.
- Diclofenac suppositories, an anti-inflammatory option usually reserved for higher fevers and not used in children under 1 year old.
Check the packaging for storage instructions. Many suppositories are kept at room temperature below a certain limit and can soften in Singapore's heat. If one feels too soft to handle, a few minutes in the fridge in its wrapper firms it up without affecting the dose.
How to give it, step by step
- Wash your hands, then unwrap the suppository.
- Lay your child on their side with their knees drawn up slightly toward their chest. For a baby, lying on their back with knees gently lifted also works.
- Gently push the suppository into the rectum, pointed end first, just past the muscle ring at the entrance.
- Hold your child still and keep their buttocks gently together for a minute or two, so the suppository stays in place while it begins to dissolve.
- Wash your hands again afterward.
Suppository and oral medicine: still the same total dose
If your child has had a paracetamol suppository, any paracetamol given by mouth afterward still counts toward the same daily limit and the same minimum gap between doses. The form changes, the active ingredient and the clock do not.
This matters most when one caregiver gives a suppository, often overnight, and a different caregiver gives oral medicine later without knowing a dose was already given. Note down, or log in an app, the time, medicine, and form of every dose so whoever is caring for your child next can see the full picture. If you think too much has been given across forms, see what to do about a possible overdose.
What if it comes back out
If your child passes the suppository within a few minutes and it still looks mostly whole, it likely was not absorbed. Even so, do not give a replacement straight away. Some of the dose may have been absorbed before it came out, and a second dose on top of that risks giving more than intended.
Call your pharmacist or GP to ask whether a replacement dose is appropriate, and mention what time the original suppository was given and roughly how long it stayed in.
→ Paracetamol dosage calculator
→ Fever at night: when should parents worry?
Frequently asked questions
Does a suppository work faster than medicine by mouth?+
Not necessarily. It works on a similar timeline to oral medicine, it is simply a different route into the body. The main reason to use one is that your child cannot take, keep down, or be woken for medicine by mouth, not because it acts faster.
Can I cut a suppository in half for a smaller dose?+
Do not do this without checking first. The medicine is not always evenly spread through a suppository, so cutting it can give an uneven or unpredictable dose. Ask your pharmacist if a smaller size is available instead.
My child passed it within a few minutes of insertion. Do I need to give another one?+
Not automatically. If it came out quickly and looks mostly whole, it likely was not absorbed, but giving a second one risks a double dose if some was absorbed after all. Call your pharmacist or GP to ask before giving a replacement.
Is it normal for my child to be upset during this?+
Yes. It is a brief, unfamiliar sensation and many children cry or wriggle. This does not mean anything is wrong. A calm voice, a cuddle afterward, and keeping the whole thing quick usually helps.
My child had an oral dose a few hours ago. Can I still give a suppository now?+
Only if it is the same active ingredient and enough time has passed since the last dose, based on the minimum interval for that medicine, not the form it was given in. A suppository and a syrup of the same medicine count toward the same total, not separate allowances.
Do suppositories need to be kept in the fridge?+
Check the packaging. Many fever suppositories are stored at room temperature below a certain limit, often around 25°C, and can soften or melt in Singapore's heat if left out. If yours feels very soft, a few minutes in the fridge in its wrapper can firm it up before use.