Carbidopa and Freezing phenomenon - a phase IV clinical study of FDA data


We study 2,770 people who have side effects when taking Carbidopa. Freezing phenomenon is found, especially among people who are male, 50-59 old, also take Potassium and have Abnormal faeces.

The phase IV clinical study analyzes which people take Carbidopa and have Freezing phenomenon. It is created by eHealthMe based on reports from the FDA, and is updated regularly. You may use the study as a second opinion to make health care decisions.

On Sep, 25, 2023

2,770 people reported to have side effects when taking Carbidopa.
Among them, 28 people (1.01%) have Freezing phenomenon.

What is Carbidopa?

Carbidopa has active ingredients of carbidopa. It is used in parkinson's disease. Currently, eHealthMe is studying from 2,800 Carbidopa users.

What is Freezing phenomenon?

Freezing phenomenon is found to be associated with 540 drugs and 217 conditions by eHealthMe. Currently, we are studying 4,294 people who have Freezing phenomenon.

Number of Carbidopa and Freezing phenomenon reports submitted per year:

Could Carbidopa cause Freezing phenomenon?

Gender of people who have Freezing phenomenon when taking Carbidopa *:

  • female: 23.08 %
  • male: 76.92 %

Age of people who have Freezing phenomenon when taking Carbidopa *:

  • 0-1: 0.0 %
  • 2-9: 0.0 %
  • 10-19: 0.0 %
  • 20-29: 0.0 %
  • 30-39: 0.0 %
  • 40-49: 0.0 %
  • 50-59: 61.11 %
  • 60+: 38.89 %

Common drugs people take besides Carbidopa *:

  1. Potassium: 15 people, 53.57%
  2. Magnesium: 14 people, 50.00%
  3. Prednisone: 9 people, 32.14%
  4. Neupro: 4 people, 14.29%
  5. Nuplazid: 4 people, 14.29%
  6. Azilect: 3 people, 10.71%
  7. Percocet: 3 people, 10.71%
  8. Ongentys: 2 people, 7.14%
  9. Pantoprazole: 2 people, 7.14%
  10. Aleve: 2 people, 7.14%

Common side effects people have besides Freezing phenomenon *:

  1. Stress And Anxiety: 18 people, 64.29%
  2. Gait Disturbance: 18 people, 64.29%
  3. Weight Decreased: 18 people, 64.29%
  4. Disturbance In Attention: 18 people, 64.29%
  5. Nausea And Vomiting: 17 people, 60.71%
  6. Hallucinations (sensations that appear real but are created by your mind): 17 people, 60.71%
  7. Fatigue (feeling of tiredness): 17 people, 60.71%
  8. Dyskinesia (abnormality or impairment of voluntary movement): 17 people, 60.71%
  9. Musculoskeletal Stiffness (stiffness of the body's muscles, joints, tendons, ligaments and nerves): 17 people, 60.71%
  10. Memory Loss: 17 people, 60.71%

Common conditions people have *:

  1. Abnormal Faeces (abnormal stool): 16 people, 57.14%
  2. On And Off Phenomenon: 1 person, 3.57%
  3. Joint Pain: 1 person, 3.57%
  4. Hallucinations (sensations that appear real but are created by your mind): 1 person, 3.57%
  5. Dyskinesia (abnormality or impairment of voluntary movement): 1 person, 3.57%
  6. Delusion (a false belief or opinion): 1 person, 3.57%
  7. Constipation: 1 person, 3.57%
  8. Breast Cancer: 1 person, 3.57%

* Approximation only. Some reports may have incomplete information.

Do you take Carbidopa and have Freezing phenomenon?

Check whether Freezing phenomenon 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 Freezing phenomenon and when was it recovered:

Expand to all the drugs that have ingredients of carbidopa:

Alternative drugs to, pros and cons of Carbidopa:

Browse all side effects of Carbidopa:

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

Freezing phenomenon treatments and more:

Common drugs associated with Freezing phenomenon:

All the drugs that are associated with Freezing phenomenon:

Common conditions associated with Freezing phenomenon:

All the conditions that are associated with Freezing phenomenon:

How the study uses the data?

The study uses data from the FDA. It is based on carbidopa (the active ingredients of Carbidopa) and Carbidopa (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 700+ 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.

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