Efavirenz and Movement - unpredictable or jerky - a phase IV clinical study of FDA data

Summary:

Movement - unpredictable or jerky is reported as a side effect among people who take Efavirenz (efavirenz), especially for people who are female, 50-59 old, have been taking the drug for 6 - 12 months also take Genvoya, and have Myocardial ischaemia.

The phase IV clinical study analyzes which people have Movement - unpredictable or jerky when taking Efavirenz. It is created by eHealthMe based on reports of 15,449 people who have side effects when taking Efavirenz from the FDA, and is updated regularly.

What is Efavirenz?

Efavirenz has active ingredients of efavirenz. It is often used in hiv infection. eHealthMe is studying from 15,501 Efavirenz users. Check the latest studies of Efavirenz.

What is Movement - unpredictable or jerky?

Movement - unpredictable or jerky is found to be associated with 248 drugs and 731 conditions by eHealthMe. Check the latest studies of Movement - unpredictable or jerky.

eHealthMe: drug outcomes in the real world

eHealthMe runs one of the largest post-marketing drug safety studies in the world. We study millions of patients and 5,000 more each day. Our data-driven phase IV clinical trials have been referenced on 800+ peer-reviewed medical publications including The Lancet, Mayo Clinic Proceedings, and Nature. Tools to study our phase IV findings are available to the public, anonymous and free >>>.

On Aug, 08, 2026

15,449 people reported to have side effects when taking Efavirenz.
Among them, 16 people (0.1%) have Movement - unpredictable or jerky.

Could Efavirenz cause Movement - unpredictable or jerky?

Among these 16 people:

How long have people been on Efavirenz when they have Movement - unpredictable or jerky? *

What is the gender of people who have Movement - unpredictable or jerky when taking Efavirenz? *

female: 93.75 %
male: 6.25 %

What is the age of people who have Movement - unpredictable or jerky when taking Efavirenz? *

What are other drugs people take besides Efavirenz? *

Darunavir: 12 people, 75.00%
Genvoya: 12 people, 75.00%
Norvir: 4 people, 25.00%
Lamivudine And Zidovudine: 2 people, 12.50%
Atenolol: 2 people, 12.50%
Emtricitabine: 2 people, 12.50%
Lamivudine: 1 person, 6.25%
Aspirin: 1 person, 6.25%
Citalopram Hydrobromide: 1 person, 6.25%
Cobicistat: 1 person, 6.25%

What are other side effects people have besides Movement - unpredictable or jerky? *

Cerebellar Syndrome (impaired blood circulation to cerebellum due to lesion in artery): 15 people, 93.75%
Gait Disturbance: 14 people, 87.50%
Rhinitis (a medical term for irritation and inflammation of the mucous membrane inside the nose): 14 people, 87.50%
Pathogen Resistance: 14 people, 87.50%
Parainfluenzae Virus Infection: 14 people, 87.50%
Central Nervous System Inflammation (infection of brain or spinal cord): 14 people, 87.50%
Confusion: 14 people, 87.50%
Meningitis Viral (viral inflammation of the protective membranes covering the brain and spinal cord, known collectively as the meninges): 14 people, 87.50%
Confusional State: 14 people, 87.50%
Speech Impairment (Adult) (inability to speak (adult)): 14 people, 87.50%

What are the existing conditions these people have? *

Myocardial Ischaemia (the blood flow through one or more of the blood vessels that lead to heart (coronary arteries) is decreased): 4 people, 25.00%
Dyslipidaemia (abnormal amount of lipids): 3 people, 18.75%
Depression: 3 people, 18.75%
Hepatitis C: 1 person, 6.25%

* Approximation only. Some reports may have incomplete information.

Do you take Efavirenz and have Movement - unpredictable or jerky?

- Check whether Movement - unpredictable or jerky is associated with a drug or a condition
- Predict drug outcomes for up to one year with AI
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Related studies:

Effectiveness of, long term effects of, and alternative drugs to Efavirenz:

Efavirenz (15,501 reports)

Browse all side effects of Efavirenz:

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

Browse all the drugs that are associated with Movement - unpredictable or jerky:

Movement - unpredictable or jerky (248 drugs)

Browse all the conditions that are associated with Movement - unpredictable or jerky:

Movement - unpredictable or jerky (731 conditions)

How the study uses the data?

The study uses data from the FDA. It is based on efavirenz (the active ingredients of Efavirenz) and Efavirenz (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.

How to use the study?

DO NOT STOP MEDICATIONS without first consulting your doctor. If there are any serious or long term adverse effects discovered in the study, discuss the study with your doctor to ensure that proper medication management will be in place if applicable.

Who is eHealthMe?

With medical big data and proven AI/ML 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 800+ peer-reviewed 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, DISCLAIMER, USE FOR PUBLICATION

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 eHealthMe.com 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.