Ertapenem is injected into a muscle or into a vein through an IV. You may be shown how to use injections at home. Do not self-inject  ertapenem if you do not fully understand how to give the injection and properly dispose of used needles, syringes, IV tubing, and other items used to inject the medicine.
Ertapenem is a powder medicine that must be mixed with a liquid (diluent) before using it. If you are using the injections at home, be sure you understand how to properly mix and store the medicine. Shake the mixture well just before you measure a dose.
Use this medicine for the full prescribed length of time. Your symptoms may improve before the infection is completely cleared. Skipping doses may also increase your risk of further infection that is resistant to antibiotics. Ertapenem will not treat a viral infection such as the flu or a common cold.
Do not share this medicine with another person, even if they have the same symptoms you have.
Your doctor will need to check your progress while you are using ertapenem.
Store ertapenem powder at room temperature away from moisture and heat.
You may store the mixture for up to 6 hours at room temperature, or up to 24 hours in a refrigerator. Use the mixed medicine within 4 hours after removing it from a refrigerator. Do not freeze.
 Detailed Ertapenem dosage information
What happens if I miss a dose?
Use the missed dose as soon as you remember. Skip the missed dose if it is almost time for your next scheduled dose. Do not use extra medicine to make up the missed dose.
What happens if I overdose?
Seek emergency medical attention or call the Poison Help line at 1-800-222-1222.
