Vivitrol and Injection site anaesthesia - a phase IV clinical study of FDA data


Injection site anaesthesia is reported only by a few people who take Vivitrol.

The phase IV clinical study analyzes which people take Vivitrol and have Injection site anaesthesia. It is created by eHealthMe based on reports of 21,781 people who have side effects while taking Vivitrol from the FDA, and is updated regularly.

Phase IV trials are used to detect adverse drug outcomes and monitor drug effectiveness in the real world. With medical big data and AI algorithms, eHealthMe is running millions of phase IV trials and makes the results available to the public. Our original studies have been referenced on 600+ medical publications including The Lancet, Mayo Clinic Proceedings, and Nature.

On Mar, 26, 2023

21,781 people reported to have side effects when taking Vivitrol.
Among them, 3 people (0.01%) have Injection site anaesthesia.

What is Vivitrol?

Vivitrol has active ingredients of naltrexone. It is often used in alcoholism. eHealthMe is studying from 22,193 Vivitrol users for its effectiveness, alternative drugs and more.

What is Injection site anaesthesia?

Injection site anaesthesia is found to be associated with 251 drugs and 167 conditions by eHealthMe.

Number of Vivitrol and Injection site anaesthesia reports submitted per year:

Could Vivitrol cause Injection site anaesthesia?

Time on Vivitrol when people have Injection site anaesthesia *:

  • < 1 month: 100 %
  • 1 - 6 months: 0.0 %
  • 6 - 12 months: 0.0 %
  • 1 - 2 years: 0.0 %
  • 2 - 5 years: 0.0 %
  • 5 - 10 years: 0.0 %
  • 10+ years: 0.0 %

Gender of people who have Injection site anaesthesia when taking Vivitrol *:

  • female: 66.67 %
  • male: 33.33 %

Age of people who have Injection site anaesthesia when taking Vivitrol *:

  • 0-1: 0.0 %
  • 2-9: 0.0 %
  • 10-19: 0.0 %
  • 20-29: 0.0 %
  • 30-39: 0.0 %
  • 40-49: 66.67 %
  • 50-59: 0.0 %
  • 60+: 33.33 %

Common drugs people take besides Vivitrol *:

  1. Seroquel: 1 person, 33.33%
  2. Risperdal: 1 person, 33.33%
  3. Oxybutynin: 1 person, 33.33%
  4. Naproxen: 1 person, 33.33%
  5. Ibuprofen: 1 person, 33.33%
  6. Gabapentin: 1 person, 33.33%
  7. Fluoxetine: 1 person, 33.33%
  8. Diazepam: 1 person, 33.33%
  9. Asa: 1 person, 33.33%

Common side effects people have besides Injection site anaesthesia *:

  1. Injection Site Pain: 3 people, 100.00%
  2. Injection Site Reaction: 3 people, 100.00%
  3. Injection Site Induration: 2 people, 66.67%
  4. Injection Site Swelling: 2 people, 66.67%
  5. Injection Site Erythema (redness at injection site): 2 people, 66.67%
  6. Injection Site Mass: 2 people, 66.67%
  7. Weight Increased: 1 person, 33.33%
  8. Injection Site Cellulitis (injection site inflammation): 1 person, 33.33%
  9. Injection Site Haematoma (localized swelling filled with blood at injection site): 1 person, 33.33%
  10. Hypoaesthesia (reduced sense of touch or sensation): 1 person, 33.33%

Common conditions people have *:

  1. Drug Dependence: 1 person, 33.33%

* Approximation only. Some reports may have incomplete information.

Do you take Vivitrol and have Injection site anaesthesia?

Check whether Injection site anaesthesia is associated with a drug or a condition

How to use the study?

You can discuss the study with your doctor, to ensure that all drug risks and benefits are fully discussed and understood.

Related studies

How severe was Injection site anaesthesia and when was it recovered:

Expand to all the drugs that have ingredients of naltrexone:

Alternative drugs to, pros and cons of Vivitrol:

Common Vivitrol side effects:

Browse all side effects of Vivitrol:

a b c d e f g h i j k l m n o p q r s t u v w x y z

Injection site anaesthesia treatments and more:

COVID vaccines that are related to Injection site anaesthesia:

All the drugs that are associated with Injection site anaesthesia:

All the conditions that are associated with Injection site anaesthesia:

How the study uses the data?

The study uses data from the FDA. It is based on naltrexone (the active ingredients of Vivitrol) and Vivitrol (the brand name). Other drugs that have the same active ingredients (e.g. generic drugs) are not considered. Dosage of drugs is not considered in the study.

Who is eHealthMe?

With medical big data and proven AI algorithms, eHealthMe provides a platform for everyone to run phase IV clinical trials. We study millions of patients and 5,000 more each day. Results of our real-world drug study have been referenced on 600+ medical publications, including The Lancet, Mayo Clinic Proceedings, and Nature. Our analysis results are available to researchers, health care professionals, patients (testimonials), and software developers (open API).


WARNING: Please DO NOT STOP MEDICATIONS without first consulting a physician since doing so could be hazardous to your health.

DISCLAIMER: All material available on is for informational purposes only, and is not a substitute for medical advice, diagnosis, or treatment provided by a qualified healthcare provider. All information is observation-only. Our phase IV clinical studies alone cannot establish cause-effect relationship. Different individuals may respond to medication in different ways. Every effort has been made to ensure that all information is accurate, up-to-date, and complete, but no guarantee is made to that effect. The use of the eHealthMe site and its content is at your own risk.

If you use this eHealthMe study on publication, please acknowledge it with a citation: study title, URL, accessed date.

Recent studies on eHealthMe: