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In this Article

• What is naltrexone injection (Vivitrol)?
• What are the possible side effects of naltrexone injection (Vivitrol)?
• What is the most important information I should know about naltrexone injection (Vivitrol)?
• What should I discuss with my health care provider before receiving naltrexone injection (Vivitrol)?
• How is naltrexone injection used (Vivitrol)?
• What happens if I miss a dose (Vivitrol)?
• What happens if I overdose (Vivitrol)?
• What should I avoid while using naltrexone injection (Vivitrol)?
• What other drugs will affect naltrexone injection (Vivitrol)?
• Where can I get more information?

What happens if I miss a dose (Vivitrol)?

Call your doctor for instructions if you miss an appointment to receive your naltrexone injection.

What happens if I overdose (Vivitrol)?

Seek emergency medical attention if you think you have received too much of this medicine.

Overdose symptoms may include nausea, stomach pain, dizziness, or seizure (convulsions).

What should I avoid while using naltrexone injection (Vivitrol)?

Naltrexone injection can cause side effects that may impair your thinking or reactions. Be careful if you drive or do anything that requires you to be awake and alert.

Do not use narcotic drugs or alcohol while receiving naltrexone injection. Never try to overcome the effects of the medication by using large doses of narcotic drugs or alcohol. Doing so could result in dangerous effects, including coma and death. Ask your doctor before using any prescription or over-the-counter medicine to treat a cold, cough, diarrhea, or pain while you are being treated with naltrexone injection. These medicines may contain narcotics or alcohol.

What other drugs will affect naltrexone injection (Vivitrol)?

The pain-relieving effects of any narcotic pain medications you use will be blocked if you use them during your treatment with naltrexone injection. Harmful side effects could also occur.

Before receiving naltrexone injection, tell your doctor if you use any of the following drugs:

• buprenorphine (Buprenex, Subutex);
• butorphanol (Stadol);
• codeine (Tylenol with codeine);
• hydrocodone (Lortab, Vicodin);
• hydromorphone (Dilaudid);
• levorphanol (Levo-Dromoran);
• meperidine (Demerol);
• methadone (Dolophine, Methadose);
• morphine (Kadian, MS Contin, Roxanol);
• nalbuphine (Nubain);
• naloxone (Narcan);
• oxycodone (OxyContin, Roxicodone, Percocet);
• oxymorphone (Numorphan); or
• propoxyphene (Darvon, Darvocet).

This list is not complete and there may be other drugs that can interact with naltrexone injection. Tell your doctor about all the prescription and over-the-counter medications you use. This includes vitamins, minerals, herbal products, and drugs prescribed by other doctors. Do not start using a new medication without telling your doctor.

Where can I get more information?

Your doctor can provide more information about naltrexone injection.

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