Sudafed and Vitamin b complex deficiency - a phase IV clinical study of FDA data


Vitamin b complex deficiency is reported only by a few people who take Sudafed.

The phase IV clinical study analyzes which people take Sudafed and have Vitamin b complex deficiency. It is created by eHealthMe based on reports of 10,228 people who have side effects while taking Sudafed 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 Jan, 30, 2023

10,228 people reported to have side effects when taking Sudafed.
Among them, 3 people (0.03%) have Vitamin b complex deficiency.

What is Sudafed?

Sudafed has active ingredients of pseudoephedrine hydrochloride. It is often used in nasal congestion. eHealthMe is studying from 11,935 Sudafed users for its effectiveness, alternative drugs and more.

What is Vitamin b complex deficiency?

Vitamin b complex deficiency is found to be associated with 448 drugs and 292 conditions by eHealthMe.

Number of Sudafed and Vitamin b complex deficiency reports submitted per year:

Could Sudafed cause Vitamin b complex deficiency?

Gender of people who have Vitamin b complex deficiency when taking Sudafed *:

  • female: 100 %
  • male: 0.0 %

Age of people who have Vitamin b complex deficiency when taking Sudafed *:

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

Common drugs people take besides Sudafed *:

  1. Claritin: 2 people, 66.67%
  2. Symbicort: 2 people, 66.67%
  3. Metformin: 1 person, 33.33%
  4. Cranberry Fruit: 1 person, 33.33%
  5. Excedrin: 1 person, 33.33%
  6. Fish Oil: 1 person, 33.33%
  7. Flax Oil: 1 person, 33.33%
  8. Fluoxetine: 1 person, 33.33%
  9. Imitrex: 1 person, 33.33%
  10. Lamictal: 1 person, 33.33%

Common side effects people have besides Vitamin b complex deficiency *:

  1. Drug Ineffective: 2 people, 66.67%
  2. Vitamin D Decreased: 1 person, 33.33%
  3. Heavy Or Prolong Menstrual Bleeding: 1 person, 33.33%
  4. Activities Of Daily Living Impaired: 1 person, 33.33%
  5. Allergy To Chemicals: 1 person, 33.33%
  6. Anaemia (lack of blood): 1 person, 33.33%
  7. Athlete's Foot (a fungal infection affecting the skin between the toes): 1 person, 33.33%
  8. Blood Immunoglobulin E Increased: 1 person, 33.33%
  9. Cough: 1 person, 33.33%
  10. Dermatitis Contact (skin reaction (dermatitis) resulting from exposure to allergens): 1 person, 33.33%

Common conditions people have *:

  1. Migraine (headache): 3 people, 100.00%
  2. Gastroesophageal Reflux Disease (a condition in which stomach contents leak backward from the stomach into the oesophagus): 2 people, 66.67%
  3. Diarrhea: 2 people, 66.67%
  4. Gastric Disorder (disease of stomach): 1 person, 33.33%
  5. Bipolar Disorder (mood disorder): 1 person, 33.33%
  6. Bladder Disorder: 1 person, 33.33%
  7. Chronic Obstructive Pulmonary Disease (a progressive disease that makes it hard to breathe): 1 person, 33.33%
  8. Depression: 1 person, 33.33%
  9. Diabetes: 1 person, 33.33%
  10. Endometriosis (appearance of endometrial tissue outside the uterus and causing pelvic pain): 1 person, 33.33%

* Approximation only. Some reports may have incomplete information.

Do you take Sudafed and have Vitamin b complex deficiency?

Check whether Vitamin b complex deficiency 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 Vitamin b complex deficiency and when was it recovered:

Expand to all the drugs that have ingredients of pseudoephedrine hydrochloride:

Alternative drugs to, pros and cons of Sudafed:

Common Sudafed side effects:

Browse all side effects of Sudafed:

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

Vitamin b complex deficiency treatments and more:

COVID vaccines that are related to Vitamin b complex deficiency:

All the drugs that are associated with Vitamin b complex deficiency:

All the conditions that are associated with Vitamin b complex deficiency:

How the study uses the data?

The study uses data from the FDA. It is based on pseudoephedrine hydrochloride (the active ingredients of Sudafed) and Sudafed (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.

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