Medicines & Supplements A to Z > Meropenem


Last updated on 02/07/2021.

Overview   |   Dosage   |    Side Effects   |   Precautions  |   Tips  |   Where To Buy  




DRUG CLASS: Antibiotics

SUB CLASS: Carbapenem

USED FOR: Lower respiratory tract infections, bacterial infections, bacterial meningitis, intra-abdominal infections, skin and soft tissue infections

– 500 mg, 1 g (injections/infusions)

What is Meropenem for?

Meropenem belongs to a class of medications called carbapenem antibiotics. It works by killing bacteria that cause infections and is used to treat various bacterial infections, including bacterial meningitis (infection of the membranes that surround the brain and spinal cord). It is also used to treat exacerbations of chronic lower respiratory tract infections in patients with cystic fibrosis. Meropenem does not work for virus or fungus infections.

How to use it?

Kanamycin is injected through a needle into a vein as directed by your doctor. Your doctor will advise you on the dosage and frequency depending on your infection.

Exacerbation of lower respiratory tract infections
2 g every 8 hours.
Child above 3 months
Body weight <50 kg: 40 mg/kg every 8 hours.
Body weight >50 kg: 2 g every 8 hours.

Bacterial infections
In severe infections and complicated infections, use 0.5-1 g every 8 hours.
Child above 3 months
Body weight <50 kg: 10-20 mg/kg every 8 hours.
Body weight >50 kg: Same as adult dose.

Bacterial meningitis
2 g every 8 hours.
Child under 3 months
Body weight <50 kg: 40 mg/kg every 8 hours.
Body weight >50 kg: 2 g every 8 hours.

What are the side effects of Meropenem?

Common side effects of Meropenem include seizure, headache, nausea and vomiting, abdominal pain, diarrhoea, inflammation, anaemia, and injection site reactions.

Who should not take Meropenem?

– People allergic to Meropenem or any component of the formulation.
– People who are allergic to carbapenems.
– People who are allergic to beta-lactams, e.g. Penicillins and Cephalosporins.

Pharmacist Tips:

– This medication can make you dizzy. Avoid driving or operating machinery until you know how you respond to Meropenem.
– Report to your doctor immediately if you experience severe diarrhoea when you use this medication.
– Drink plenty of water to replace any lost fluids due to diarrhoea.

Common dosing schedule:
Meropenem should be administered every 8 hours.

This schedule is for reference only, adjustments may be made according to individual needs.

Some common medications Meropenem may interact with:
– Anticonvulsants, e.g. Phenobarbital, Phenytoin, Sodium Valproate

Please notify your doctor or pharmacist if you are taking the above medication, dosage adjustments might be needed.

Where to buy Meropenem in Hong Kong?

In Hong Kong, Meropenem is a prescription only medicine, and requires a prescription from a doctor to be purchased in a pharmacy. It can also be obtained from doctors. To find a pharmacy near you, refer to the list of pharmacies (“Authorized Sellers of Poisons”) from the Hong Kong Department of Health.  

For more information about drug names and ingredients, you can visit Hong Kong’s Drug Office at

Need more information?

For detailed information about the use of Meropenem in children, pregnancy and breastfeeding, and for questions about drug interactions, please check with your pharmacist or doctor.

Disclaimer: our goal is to provide you with the most relevant drug information and common dosage for Hong Kong. This information does not constitute medical advice. For specific treatment recommendations and advice, always discuss with your doctor or pharmacist, and follow the instructions included with your specific medicine.