Read the Patient Information Leaflet if available from your pharmacist before you start using ertapenem and each time you get a refill. If you have any questions, ask your doctor or pharmacist.

This medication is given by injection into a muscle or vein as directed by your doctor, usually once or twice daily. If you are using this medication to prevent an infection, it is given by injection into a vein by a health care professional. It is given as directed by your doctor, usually 1 hour before your surgery.

If this medication is given by injection into a muscle, follow the manufacturer's directions for mixing with lidocaine 1 percent solution. Do not use this solution for injection into a vein.

If you are using this medication at home, learn all preparation and usage instructions from your health care professional. Before using, check this product visually for particles or discoloration. If either is present, do not use the liquid. Learn how to store and discard medical supplies safely.

The dosage is based on your medical condition and response to treatment. In children, the dosage is also based on age and weight.

For the best effect, use this antibiotic at evenly spaced times. To help you remember, use this medication at the same time(s) every day.

Continue to use this medication until the full prescribed treatment period is finished, even if symptoms disappear after a few days. Stopping the medication too early may result in a return of the infection.

Tell your doctor if your condition lasts or gets worse.