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What should I discuss with my health care provider before using naloxone (Narcan)?

You should not use this medication if you are allergic to naloxone.

If possible before you receive naloxone, tell your doctor if you have:

• heart disease;
• seizures;
• a history of head injury or brain tumor; or
• a history of drug or alcohol addiction.

FDA pregnancy category C. It is not known whether naloxone will harm an unborn baby. Tell your doctor if you are pregnant or plan to become pregnant while using this medication.

It is not known whether naloxone passes into breast milk or if it could harm a nursing baby. Do not use this medication without telling your doctor if you are breast-feeding a baby.

How should I use naloxone (Narcan)?

Naloxone is injected into a muscle or under the skin, or into a vein through an IV. You will receive this injection in a clinic or hospital setting.

Your breathing, blood pressure, oxygen levels, kidney function, and other vital signs will be watched closely while you are receiving naloxone. This will help your doctor determine how long to treat you with this medication.

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