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Meropenem 1000 mg powder for injection or infusion – patient leaflet, side effects, dosage

Text from the MHRA, as of · About this document

Medicine status: Prescription only (POM) Details

Medicine strength:
1000 mg
Contains active substance:
ATC code:
Similar medicines:

Patient leaflet - Meropenem 1000 mg powder for injection or infusion

1. WHAT MEROPENEM IS AND WHAT IT IS USED FOR

Meropenem is used to treat the following in adults and children aged 3 months and older:

  • Lung and bronchial infections in patients suffering from cystic fibrosis
  • Complicated urinary tract infections
  • Complicated infections in the abdomen

suspected to be due to a bacterial infection.

Meropenem may be used to treat bacterial infection of the blood which might be

2. WHAT YOU NEED TO KNOW BEFORE YOU USE MEROPENEM

Do not use Meropenem if:

Warnings and precautions

before using Meropenem.

Other medicines and Meropenem

following medicines:

Pregnancy and breast-feeding

whether you should use Meropenem.

Meropenem while breast-feeding.

Driving and using machines operate machines.

side effect.

Meropenem contains sodium.

3. HOW TO USE MEROPENEM

Use in adults

you need.

Use in children and adolescents

How to use Meropenem doctor if you are not sure.

other medicines.

If you use more Meropenem than you should hospital straight away.

If you forget to use Meropenem

If you stop using Meropenem pharmacist or nurse.

The following information is intended for medical or healthcare professionals only: Instructions for giving Meropenem to yourself or someone else at home

Warning – You should only give this medicine to yourself or someone else at home after a doctor or nurse has trained you.

How to prepare this medicine

you how much of the diluent to use.

Allow the rubber stopper to dry.

Dose of Meropenem Amount of ‘Water for Injections’ needed for dilution

20 ml

1.5 g 30 ml

2 g 40 ml

Please note:

one syringe.

  1. 6.

    Put the needle of the syringe through the centre of the rubber stopper and

    Meropenem.

    alcohol wipe and allow the rubber stopper to dry.

The following information is intended for healthcare professionals only. For full prescribing information please refer to the SmPC.

Posology and method of administration

Posology

three times daily in children may be particularly appropriate when treating some types of

Enterobacteriaceae Pseudomonas aeruginosa Acinetobacter

Additional considerations for dosing are needed when treating patients with renal

Adults and Adolescents

Infection Dose to be administered

every 8 hours

associated pneumonia 500 mg or 1 g

Broncho-pulmonary infections in cystic fibrosis 2 g

Complicated urinary tract infections 500 mg or 1 g Complicated intra-abdominal infections 500 mg or 1 g

500 mg or 1 g 500 mg or 1 g Acute bacterial meningitis 2 g

Management of febrile neutropenic patients 1 g

Renal impairment

Creatinine clearance

(mL/min)

Dose (based on “unit” dose range of 500 mg or 1 g or 2 g, see table above) Frequency

26-50 one unit dose

10-25 half of one unit dose

< 10 half of one unit dose should be administered after completion of the haemodialysis cycle.

Hepatic impairment

Paediatric population

Children under 3 months of age

Tear Here

Tear Here

4. POSSIBLE SIDE EFFECTS

Severe allergic reactions

sudden onset of:

Damage to red blood cells (not known)

  • Red or brown urine.

    see a doctor straight away. Other possible side effects:

Common (may affect up to 1 in 10 people)

  • Headache.
  • Pain and inflammation.

Uncommon (may affect up to 1 in 100 people)

decreased numbers of other white cells and increased amounts of a substance called

Rare (may affect up to 1 in 1,000 people)

Reporting of side effects

5. HOW TO STORE MEROPENEM

Intravenous bolus injection administration:

6. CONTENTS OF THE PACK AND OTHER INFORMATION

What Meropenem contains

meropenem.

What Meropenem looks like and contents of the pack

Marketing Authorisation Holder

Olympia House

Unit 13, 2nd Floor, Armitage Road

London, NW11 8RQ

England

Manufacturer

Advice/medical education

Sometimes an infection caused by bacteria does not respond to a course of an antibiotic. One of the commonest reasons for this to occur is because the bacteria

Bacteria can become resistant to antibiotics for many reasons. Using antibiotics carefully can help to reduce the chance of bacteria becoming resistant to them.

and for the right number of days. Read the instructions on the label and if you do and you should use it only to treat the infection for which it was prescribed.

they had an infection that was similar to yours.

safe place.

Giving the injection

port or central line.

sharps bin.

dry. Open the cap on your cannula and connect the syringe.

minutes.

syringe and use a flush as recommended by your doctor or nurse.

  1. 5. Close the cap of your cannula and carefully throw the syringe away in your sharps bin.

Giving Meropenem through a port or central line

and allow it to dry.

recommended by your doctor or nurse.

  1. 4. Place a new clean cap on your central line and carefully throw the syringe away in your sharps bin.

Children from 3 months to 11 years of age and up to 50 kg body weight

Infection Dose to be administered

every 8 hours

associated pneumonia

Broncho-pulmonary infections in cystic fibrosis

Complicated urinary tract infections

Complicated intra-abdominal infections

Acute bacterial meningitis

Management of febrile neutropenic patients

Children over 50 kg body weight

Method of administration

section 6.6.

Incompatibilities

mentioned in section 6.6.

Shelf-life

Special precautions for storage

Special precautions for disposal and other handling

Injection

Infusion

and administration.

Intravenous infusion administration:

Chemical and physical in-use stability for a prepared solution for infusion using 0.9% sodium chloride solution or 5% glucose solution has been demonstrated for 1 hour at up to 25 °C or under refrigerated conditions (2-8 °C).

From a microbiological point of view, unless the method of opening/ reconstitution/ dilution precludes the risk of microbiological contamination, the product should be used immediately.

If not used immediately in-use storage times and conditions are the responsibility of the user.

Do not freeze the reconstituted solution.

Do not throw away any medicines via wastewater or household waste. Ask your pharmacist how to throw away medicines you no longer use. These measures will help to protect the environment.

Intravenous bolus injection administration

injection to a final concentration of 50 mg/mL. The reconstituted solutions for intravenous injection or infusion should be used immediately. The constituted solutions should not be frozen.

intravenous injection or infusion should be used immediately. The constituted solutions should not be frozen.

Intravenous infusion administration:

Chemical and physical in-use stability for a prepared solution for infusion using 0.9% sodium chloride solution or 5% glucose solution has been demonstrated for 1 hour at up to 25°C or under refrigerated conditions (2-8 °C).

From a microbiological point of view, unless the method of opening/ reconstitution/ dilution precludes the risk of microbiological contamination, the product should be used immediately.

If not used immediately in-use storage times and conditions are the responsibility of the user.

glucose

About this document

Source: MHRA - Medicines and Healthcare products Regulatory Agency (products.mhra.gov.uk) · Marketing authorisation: PL 57592/0028

MHRA data as of 13 October 2026

Found a mistake? Tell us on the contact page.

The information on this site does not replace the advice of a doctor or pharmacist.

Facts about Meropenem 1000 mg powder for injection or infusion

Prescription needed? Yes, prescription-only medicine (POM)
Active substance Meropenem
Strength 1000 mg
Pharmaceutical form Powder for solution for injection
How is it taken Intravenous
Is it available? Listed as available (NHS Dictionary of Medicines and Devices – not a record of current supplies)
Drug group (ATC)
  1. J Antiinfectives for systemic use
    1. J01 Antibacterials for systemic use
      1. J01D Other beta-lactam antibacterials
        1. J01DH Carbapenems
          1. J01DH02 meropenem
Marketing authorisation PL 57592/0028
Codes BNF 05010202

Sources: the MHRA product information (products.mhra.gov.uk) and the NHS Dictionary of Medicines and Devices (dm+d), release 10.2.0 of 19 October 2026, NHS Business Services Authority. Contains public sector information licensed under the Open Government Licence v3.0.