Used for: Bacterial meningitis, Skin and soft tissue infections, Bacterial infections, Lower respiratory tract infections, Intra-abdominal infections, Prevention of surgical infections
Chinese name:

What is Tienam?

Tienam is a brand medication that contains Imipenem and Cilastatin, which belongs to a group of medicines called carbapenem antibiotics. Cilastatin helps to prevent the degradation of Imipenem and prolongs its antibacterial effect. It is used mainly in hospital settings for more severe cases of bacterial infections, including complicated abdomen infections, pneumonia, complicated urinary tract infections and complicated skin and soft tissue infections.

How to use it?

Tienam is only available as injections. The usual dose is 500/500mg every 6 hours. The dose varies depending on the severity of infections, and kidney and renal impairment, which is done by a specialist in a hospital setting.

What are the side effects of Tienam?

Common side effects of Tienam include nausea and vomiting, diarrhoea, swelling and redness along a vein, local skin redness and pain at the injection site. In rare cases, it can cause sensitivity skin rash which requires immediate medical attention.

Who should not take Tienam?

  • Anyone who is allergic to any component of Tienam.

Pharmacist Tips:

  • Complete the course of antibiotic treatment as directed to prevent the risk of re-infections and antibiotic resistance.

Common dosing schedule:

  • Tienam is commonly administered every 6-8 hours.

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


Some common medications Tienam may interact with:

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

Where to buy Tienam in Hong Kong?

In Hong Kong, Tienam 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 https://www.drugoffice.gov.hk

Need more information?

For detailed information about the use of Tienam 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.

Available dosage
  • 500mg/500mg (Injections)
Drug class
Sub class
Dehydropeptidase Inhibitors, Carbapenem
Generic Names
Other drugs in same class
Used for: Lower respiratory tract infections, Intra-abdominal infections, Skin and soft tissue infections, Bacterial meningitis, Bacterial infections
Chinese name:
Used for: Prevention of surgical infections, Community-acquired pneumonia, Skin and soft tissue infections
Chinese name: