This leaflet is about the use of rectal paralydehyde to stop seizures. (Seizures may also be called convulsions or fits).
This leaflet has been written specifically about the use of this medicine in children. The information may differ from that provided by the manufacturer. Please read this leaflet carefully. Keep it somewhere safe so that you can read it again.
Do not give paraldehyde if the liquid is brownish in colour or if it has a vinegar-like smell.
Paraldehyde
Paraldehyde is used to stop a seizure.
Make sure the mixture you have is paraldehyde mixed with oil. You must never use neat paraldehyde. If you are not sure, ask your pharmacist.
You should give rectal paraldehyde if your child’s seizure lasts more than 5 minutes. Follow these steps.
(If you have been given paraldehyde to use in case buccal midazolam doesn’t help, follow your doctor’s advice for when to give it.)

Do not give your child another dose of paraldehyde.
Your doctor will work out the amount of paraldehyde (the dose) that is right for your child. This amount will be shown on the medicine label.
You must check what volume of the mixture to use, especially if you have a new prescription, because different mixtures may contain different amounts of paraldehyde.
It is important that you follow your doctor’sinstructions about how much to give.
Paraldehyde is given rectally (into the back passage). Your epilepsy nurse should have given you all the things you need. They should be kept together, somewhere close to hand. You will need:
Although it can be upsetting to see your child having a seizure, it is important that you stay calm and follow the instructions.
Prepare the paraldehyde
Give the paraldehyde
You do not need to give your child another dose of paraldehyde, as it will still work.
If you do not give the paraldehyde, or you do not give the right dose, your child’s seizure may not stop. This could be dangerous, and your child will need to go to hospital.
If you think you may have given your child too much paraldehyde, contact your doctor or NHS Direct (0845 4647 in England and Wales; 08454 24 24 24 in Scotland) or take your child to hospital.
Take the medicine container or packet with you, even if it is empty. This will be useful to the doctor. Have the packet with you if you telephone for advice.
We use medicines to make our children better, but sometimes they have other effects that we don’t want (side-effects).
Paraldehyde does not usually cause any side-effects.
You must keep the paraldehyde solution in the container it came in. Do not store it in rubber or plastic containers (i.e. syringes).
Once you have drawn the liquid up into the syringe, it must be used within 15 minutes. If the mixture has been in the syringe for longer than this, throw away the syringe and solution and start again with a fresh syringe.
Paraldehyde solutions are made specially by the pharmacist. When you get a new prescription, check how much you should use (a volume in mL), as this may be different from the previous supply.
If you get any paraldehyde in your eyes or on your skin, wash the area with cold water immediately. If irritation continues, go to your local Emergency department.
If you think someone else may have taken the medicine by accident, contact your doctor straight away.
Your child’s doctor, pharmacist or epilepsy nurse will be able to give you more information about paraldehyde and about other medicines used to treat seizures.
9/12/2011
Version 1.2, March 2011 (November 2011). © NPPG, RCPCH and WellChild 2011, all rights reserved. Reviewed by: March 2013.
The primary source for the information in this leaflet is the British National Formulary for Children. For details on any other sources used for this leaflet, please contact us through our website, www.medicinesforchildren.org.uk
We take great care to make sure that the information in this leaflet is correct and up-to-date. However, medicines can be used in different ways for different patients. It is important that you ask the advice of your doctor or pharmacist if you are not sure about something. This leaflet is about the use of these medicines in the UK, and may not apply to other countries. The Royal College of Paediatrics and Child Health (RCPCH), the Neonatal and Paediatric Pharmacists Group (NPPG), WellChild and the contributors and editors cannot be held responsible for the accuracy of information, omissions of information, or any actions that may be taken as a consequence of reading this leaflet.