Adderall and Joint lock - a phase IV clinical study of FDA data

Summary:

Joint lock is reported as a side effect among people who take Adderall (amphetamine aspartate; amphetamine sulfate; dextroamphetamine saccharate; dextroamphetamine sulfate), especially for people who are female, 20-29 old, also take Ampyra, and have Multiple sclerosis.

The phase IV clinical study analyzes which people have Joint lock when taking Adderall. It is created by eHealthMe based on reports of 50,493 people who have side effects when taking Adderall from the FDA, and is updated regularly.

What is Adderall?

Adderall has active ingredients of amphetamine aspartate; amphetamine sulfate; dextroamphetamine saccharate; dextroamphetamine sulfate. It is often used in attention deficit hyperactivity disorder. eHealthMe is studying from 64,224 Adderall users. Check the latest studies of Adderall.

What is Joint lock?

Joint lock is found to be associated with 300 drugs and 491 conditions by eHealthMe. Check the latest studies of Joint lock.

On Jul, 19, 2026

50,493 people reported to have side effects when taking Adderall.
Among them, 19 people (0.04%) have Joint lock.

Among these 19 people:

What is the gender of people who have Joint lock when taking Adderall? *

female: 55.56 %
male: 44.44 %

What is the age of people who have Joint lock when taking Adderall? *

What are other drugs people take besides Adderall? *

What are other side effects people have besides Joint lock? *

Pain In Extremity: 14 people, 73.68%
Joint Stiffness: 11 people, 57.89%
Joint Swelling: 10 people, 52.63%
Haemarthrosis (haemarthrosis is where blood is able to enter the joint capsule): 9 people, 47.37%
Fatigue (feeling of tiredness): 5 people, 26.32%
Arthropathy: 4 people, 21.05%
Weakness: 4 people, 21.05%
Muscle Spasms (muscle contraction): 4 people, 21.05%
Insomnia (sleeplessness): 3 people, 15.79%
Trigger Finger: 3 people, 15.79%

What are the existing conditions these people have? *

Multiple Sclerosis (a nervous system disease that affects your brain and spinal cord. it damages the myelin sheath): 7 people, 36.84%
Gait Disturbance: 6 people, 31.58%
Systemic Lupus Erythematosus (an autoimmune disease, which means the body's immune system mistakenly, attacks healthy tissue): 2 people, 10.53%
Weakness: 1 person, 5.26%
Rheumatoid Arthritis (a chronic progressive disease causing inflammation in the joints): 1 person, 5.26%
Nerve Injury: 1 person, 5.26%
Fatigue (feeling of tiredness): 1 person, 5.26%

* Approximation only. Some reports may have incomplete information.

Do you take Adderall and have Joint lock?

- Check whether Joint lock is associated with a drug or a condition
- Predict drug outcomes for up to one year with AI
- Get an AI agent to monitor your drugs continuously

Related studies:

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

Adderall (64,224 reports)

Joint lock treatments and more:

Joint lock (3,416 reports)

How severe was Joint lock and when was it recovered:

Joint lock in Adderall

Expand to all the drugs that have ingredients of amphetamine aspartate; amphetamine sulfate; dextroamphetamine saccharate; dextroamphetamine sulfate:

Joint lock and drugs with ingredients of amphetamine aspartate; amphetamine sulfate; dextroamphetamine saccharate; dextroamphetamine sulfate (19 reports)

Sub-studies by gender and age:

Female: 0-1 2-9 10-19 20-29 30-39 40-49 50-59 60+

Male: 0-1 2-9 10-19 20-29 30-39 40-49 50-59 60+

Browse all side effects of Adderall:

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 Joint lock:

Joint lock (300 drugs)

Browse all the conditions that are associated with Joint lock:

Joint lock (491 conditions)

How the study uses the data?

The study uses data from the FDA. It is based on amphetamine aspartate; amphetamine sulfate; dextroamphetamine saccharate; dextroamphetamine sulfate (the active ingredients of Adderall) and Adderall (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.