Metra and Weakness - a phase IV clinical study of FDA data

Summary:

Weakness is reported as a side effect among people who take Metra (phendimetrazine tartrate), especially for people who are female, 50-59 old, also take Sodium Chloride, and have B-lymphocyte abnormalities.

The phase IV clinical study analyzes which people have Weakness when taking Metra. It is created by eHealthMe based on reports of 372 people who have side effects when taking Metra from the FDA, and is updated regularly.

What is Metra?

Metra has active ingredients of phendimetrazine tartrate. eHealthMe is studying from 505 Metra users. Check the latest studies of Metra.

What is Weakness?

Weakness is found to be associated with 3,640 drugs and 6,612 conditions by eHealthMe. Check the latest studies of Weakness.

On Apr, 29, 2026

372 people reported to have side effects when taking Metra.
Among them, 16 people (4.3%) have Weakness.

Among these 16 people:

What is the gender of people who have Weakness when taking Metra? *

female: 93.75 %
male: 6.25 %

What is the age of people who have Weakness when taking Metra? *

What are other drugs people take besides Metra? *

Acetaminophen: 5 people, 31.25%
Lexapro: 5 people, 31.25%
Aciphex: 5 people, 31.25%
Advair Hfa: 5 people, 31.25%
Lidocaine: 5 people, 31.25%
Epinephrine: 5 people, 31.25%
Ventolin Hfa: 5 people, 31.25%
Nortriptyline Hydrochloride: 5 people, 31.25%
Symbicort: 5 people, 31.25%
Sodium Chloride: 5 people, 31.25%

What are other side effects people have besides Weakness? *

Fatigue (feeling of tiredness): 7 people, 43.75%
Malaise (a feeling of general discomfort or uneasiness): 7 people, 43.75%
Fall: 6 people, 37.50%
Respiratory Disorder (respiratory disease): 5 people, 31.25%
Weight Increased: 5 people, 31.25%
Concussion (short loss of normal brain function in response to a head injury): 5 people, 31.25%
Pain: 5 people, 31.25%
Productive Cough: 5 people, 31.25%
Tenderness (pain or discomfort when an affected area is touched): 5 people, 31.25%
Fever: 5 people, 31.25%

What are the existing conditions these people have? *

Immunodeficiency Common Variable: 5 people, 31.25%
B-Lymphocyte Abnormalities (abnormal population of b lymphocytes in the blood, bone marrow, or tissues): 5 people, 31.25%
Weight Decreased: 2 people, 12.50%
Restless Leg Syndrome (a powerful urge to move your legs): 1 person, 6.25%
Narcolepsy (brain's inability to regulate sleep-wake cycles normally): 1 person, 6.25%
Hypogonadism (reduction or absence of hormone secretion or other physiological activity of the gonads (testes or ovaries)): 1 person, 6.25%
Depression: 1 person, 6.25%
Asthma: 1 person, 6.25%

* Approximation only. Some reports may have incomplete information.

Do you take Metra and have Weakness?

- Check whether Weakness 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 Metra:

Metra (505 reports)

Weakness treatments and more:

Weakness (586,876 reports)

Browse all side effects of Metra:

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 Weakness:

Weakness (3,640 drugs)

Browse all the conditions that are associated with Weakness:

Weakness (6,612 conditions)

How the study uses the data?

The study uses data from the FDA. It is based on phendimetrazine tartrate (the active ingredients of Metra) and Metra (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.