Patient Leaflet Updated 16-Dec-2024 | Martindale Pharma, an Ethypharm Group Company
Pethidine 50mg/ml & 100mg/2ml Solution for Injection
Pethidine 50mg/ml & 100mg/2ml Solution for Injection
Pethidine Hydrochloride
1. What Pethidine Injection is and what it is used for
2. Before you are given Pethidine Injection
3. How Pethidine Injection will be given
4. Possible side effects
5. How to store Pethidine Injection
6. Contents of the pack and other information
This medicine contains Pethidine Hydrochloride which is an opioid, which can cause addiction. You can get withdrawal symptoms if you stop taking it suddenly
Pethidine is a drug with powerful pain relieving properties.
This medicine has been prescribed for you for relief of moderate to severe pain and is used for pain relief during labour, it may also be used to stop you from feeling pain before and during an operation and to provide continuous pain relief if needed.
It contains Pethidine Hydrochloride which belongs to a class of medicines called opioids, which are ‘pain relievers’.
This medicine has been prescribed to you and should not be given to anyone else.
Opioids can cause addiction and you may get withdrawal symptoms if you stop taking it suddenly.
Your prescriber should have explained how long you will be taking it for and when it is appropriate to stop, how to do this safely.
Patients in a coma should not be given this medicine
Talk to your doctor or pharmacist before being given Pethidine Injection if you:
Taking this medicine regularly, particularly for a long time, can lead to addiction. Your prescriber should have explained how long you will be taking it for and when it is appropriate to stop, how to do this safely.
Rarely, increasing the dose of this medicine can make you more sensitive to pain. If this happens, you need to speak to your prescriber about your treatment.
Addiction can cause withdrawal symptoms when you stop taking this medicine. Withdrawal symptoms can include restlessness, difficulty sleeping, irritability, agitation, anxiety, feeling your heartbeat (palpitations), increased blood pressure, feeling or being sick, diarrhoea, loss of appetite, shaking, shivering or sweating. Your prescriber will discuss with you how to gradually reduce your dose before stopping the medicine. It is important that you do not stop taking the medicine suddenly as you will be more likely to experience withdrawal symptoms.
Opioids should only be used by those they are prescribed for. Do not give your medicine to anyone else. Taking higher doses or more frequent doses of opioid, may increase the risk of addiction. Overuse and misuse can lead to overdose and/or death.
If you are elderly or ill, or your baby or child is being given Pethidine Injection, special care will be taken.
If any of the above apply to you or your child, please tell your doctor before being given Pethidine Injection.
Tell your doctor, nurse or midwife if you are taking, have recently taken or might take any other medicines including medicines obtained without a prescription.
Pethidine Injection must not be used with drugs used to treat severe depression, such as rasagiline or moclobemide, or if you are within 2 weeks of discontinuing them.
These drugs are known as Monoamine Oxidase Inhibitors (MAOI’s),
Other medicines which may interact with Pethidine Injection include:
Concomitant use of Pethidine Injection and sedative medicines such as benzodiazepines or related drugs increases the risk of drowsiness, difficulties in breathing (respiratory depression), coma and may be life-threatening. Because of this, concomitant use should only be considered when other treatment options are not possible.
However, if your doctor does prescribe Pethidine together with sedative medicines the dose and duration of concomitant treatment should be limited by your doctor.
Please tell your doctor about all sedative medicines you are taking and follow your doctor’s dose recommendation closely. It could be helpful to inform friends or relatives to be aware of the signs and symptoms stated above. Contact your doctor when experiencing such symptoms.
If you are in any doubt please tell your doctor of any medication you are taking.
If you are pregnant or breast-feeding, think you may be pregnant or are planning to have a baby, ask your doctor or pharmacist for advice before using this medicine.
Pethidine can pass into your baby either through your blood (during pregnancy and labour) or through your breast milk. This can cause breathing problems in newborn babies. Your doctor will be aware of this and will correct the problem and discuss feeding with you.
This medicine can affect your ability to drive and operate machinery. Do not drive or operate machinery if you feel drowsy or cannot think clearly.
This medicine can affect your ability to drive and operate machinery as it may make you sleepy or dizzy.
Talk to your doctor or pharmacist if you are not sure whether it is safe for you to drive while taking this medicine.
You are advised not to drink alcohol during your treatment with this medicine.
Your doctor will give Pethidine Injection to you as an injection into a vein (intravenously), under the skin (subcutaneously) or into a muscle (intramuscularly). Your prescriber should have discussed with you, how long the course of Pethidine Injection will last.
They will arrange a plan for stopping treatment.
This will outline how to gradually reduce the dose and stop taking the medicine.
For the relief of moderate to severe pain:
The usual initial dose is 25-100mg either into a muscle or under the skin, or 25-50mg if given into a vein. The dose is given at a minimum of four hourly intervals if needed.
For pain relief during labour:
The usual dose is 50-100mg either into a muscle or under the skin every 1-3 hours during labour up to a maximum of 400mg in 24 hours.
For pain relief before and during an operation:
The usual dose is 50-100mg into a muscle one hour before the operation.
For continuous pain relief:
The usual dose is 10-25mg by slow injection into the vein as needed.
It is recommended that a reduced dose be used. The usual initial dose is up to a maximum of 25mg.
For the relief of moderate to severe pain:
The usual dose is 0.5-2mg per kilogram of body weight by intramuscular injection.
For pain relief before and during an operation: The usual dose is 1-2mg per kilogram of body weight into the muscle one hour before the operation.
The symptoms and signs of taking too much of this medicine include shallow breathing, drowsiness, incoordination, coma, seizures, blue skin and lips, eye closure (miosis), shaking, cold, clammy skin, drop in body temperature, slow heartbeat and low blood pressure.
This medicine will be given to you in hospital so it is unlikely you will receive too much. Your doctor has information on how to recognise and treat an overdose.
If you feel unwell after being given this medicine, or are at all concerned you have been given too much, tell your doctor or nurse.
Do not suddenly stop taking this medicine. If you want to stop taking this medicine, discuss this with your prescriber first. They will tell you how to do this, usually by reducing the dose gradually so that any unpleasant withdrawal effects are kept to a minimum. Withdrawal symptoms such as restlessness, difficulty sleeping, irritability, agitation, anxiety, feeling your heartbeat (palpitations), increased blood pressure, feeling or being sick, diarrhoea, shaking, shivering or sweating may occur if you suddenly stop taking this medicine.
Do not take Pethidine Injection if you are pregnant or think you might be pregnant unless you have discussed this with your prescriber and the benefits of treatment are considered to outweigh the potential harm to the baby.
If you use Pethidine Injection during pregnancy, your baby may become dependent and experience withdrawal symptoms after the birth which may need to be treated.
Do not take Pethidine Injection while you are breastfeeding as Pethidine Hydrochloride passes into breast milk and will affect your baby.
If you have any further questions on the use of this product, ask your doctor or nurse.
Like all medicines this medicine can cause side effects, although not everybody gets them.
If any of the following symptoms occur, contact your doctor or nearest accident and emergency department immediately. These are symptoms of a serious allergic reaction.
Not known (frequency cannot be estimated from the available data):
Other side effects that may occur include:
Not known (frequency cannot be estimated from the available data):
Drug Withdrawal
When you stop taking Pethidine Injection, you may experience drug withdrawal symptoms, which include restlessness, difficulty sleeping, irritability, agitation, anxiety, feeling your heartbeat (palpitations), increased blood pressure, feeling or being sick, diarrhoea, shaking, shivering or sweating.
If you notice any of the following signs whilst taking Pethidine Injection, it could be a sign that you have become addicted.
If you notice any of these signs, it is important you talk to your prescriber
If you get any side effects, talk to your doctor or pharmacist or nurse. This includes any possible side effects not listed in this leaflet. You can also report side effects directly via Yellow Card Scheme. Website: www.mhra.gov.uk/yellowcard or search for MHRA Yellow Card in the Google Play or Apple App Store. By reporting side effects you can help provide more information on the safety of this medicine.
Keep this medicine out of the sight and reach of children.
You should not be given Pethidine Injection after the expiry date which is stated on the ampoule and carton label. The expiry date refers to the last day of that month. The doctor or nurse will check that the product has not passed this date.
Do not store above 25°C.
Keep the ampoules in the outer carton. Protect from light.
What Pethidine Injection contains
Active Ingredient: Pethidine Hydrochloride 5%w/v Other Ingredients: sodium hydroxide and water for injections.
Pethidine Injection is a sterile solution, supplied in clear glass ampoules. Each ampoule contains 1ml or 2ml of the solution.
Product Licence Number:
PL 01883/6150R
This leaflet was last revised in: November 2024
D062790000
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