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Vivitrol contains naltrexone base anhydrous and is an opioid antagonist with little or no opioid agonist activity. It is formulated as an extended-release injectable suspension and administered by deep intramuscular injection by a healthcare provider. Vivitrol is available in a dosage strength of 380 mg per vial. Key inactive ingredients include a biodegradable matrix of polylactide-co-glycolide, carboxymethylcellulose sodium, polysorbate 20, and sodium chloride.
How should I use this medication?
The medication is injected into a muscle. It is given by your care team in a hospital or clinic setting.
A special MedGuide will be given to you by the pharmacist with each prescription and refill. Be sure to read this information carefully each time.
Talk to your care team about the use of this medication in children. Special care may be needed.
Overdosage: If you think you have taken too much of this medicine contact a poison control center or emergency room at once.
NOTE: This medicine is only for you. Do not share this medicine with others.
What if I miss a dose?
It is important not to miss your dose. Call your care team if you are unable to keep an appointment.
Where should I keep my medication?
This medication is given in a hospital or clinic. It will not be stored at home.
NOTE: This sheet is a summary. It may not cover all possible information. If you have questions about this medicine, talk to your doctor, pharmacist, or health care provider.
What side effects may I notice from receiving this medication?
Side effects that you should report to your care team as soon as possible:
Side effects that usually do not require medical attention (report to your care team if they continue or are bothersome):
This list may not describe all possible side effects. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
What should I tell my care team before I take this medication?
They need to know if you have any of these conditions:
What may interact with this medication?
Do not take this medication with any of the following:
This medication may also interact with the following:
This list may not describe all possible interactions. Give your health care provider a list of all the medicines, herbs, non-prescription drugs, or dietary supplements you use. Also tell them if you smoke, drink alcohol, or use illegal drugs. Some items may interact with your medicine.
What should I watch for while using this medication?
Your condition will be monitored carefully while you are receiving this medication. Visit your care team for regular checks on your progress. Tell your care team if your symptoms do not start to get better or if they get worse.
You may be more sensitive to the effects of opioids after you take this medication. This can increase the risk of accidental overdose. Talk to your care team about obtaining an opioid reversal agent, such as naloxone or nalmefene. Know the symptoms of opioid overdose. These may include slow or shallow breathing, shortness of breath, confusion, feeling faint or dizzy, and trouble staying awake. Tell caregivers and close contacts where your reversal agent is stored. Make sure they know how to use it. After giving it, they should call emergency services right away. Reversal agents are a temporary treatment. Repeat doses may be needed.
This medication may affect your coordination, reaction time, or judgment. Do not drive or operate machinery until you know how this medication affects you. Sit up or stand slowly to reduce the risk of dizzy or fainting spells. Drinking alcohol with this medication can increase the risk of these side effects.
If you are going to need surgery or a procedure, tell your care team that you are taking this medication.
Wear a medical ID bracelet or chain. Carry a card that describes your condition. List the medications and doses you take on the card.
Source: This information is sourced from Elsevier Inc.
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Prescription medications affect individuals differently, and what works for one person may not work for another. Always consult your doctor, pharmacist, or other qualified healthcare provider to ensure the information displayed applies to your personal circumstances. Only a licensed healthcare provider can advise you on what is safe and effective for you.
Keep all medications out of the reach of children, never share your medicine with others, and use each medication only as prescribed. Your reliance on any information provided on this platform is at your own risk.
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