Phenergan and Folate drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Phenergan (promethazine hydrochloride) and Folate (folic acid). Common drug interactions include clostridium difficile colitis among females and anhedonia among males.

The phase IV clinical study analyzes what interactions people have when they take Phenergan and Folate. It is created by eHealthMe based on reports of 53 people who take the same drugs from the FDA, and is updated regularly.

What is Phenergan?

Phenergan has active ingredients of promethazine hydrochloride. It is often used in nausea. eHealthMe is studying from 25,312 Phenergan users. Check the latest studies of Phenergan.

What is Folate?

Folate has active ingredients of folic acid. It is often used in rheumatoid arthritis. eHealthMe is studying from 6,546 Folate users. Check the latest studies of Folate.



On Jul, 08, 2026

53 people who take Phenergan and Folate together, and have interactions are studied.

Phenergan and Folate drug interactions.

What are the common drug interactions of Phenergan and Folate, by gender? *:

female:

  1. Clostridium difficile colitis (inflammation of colon by clostridium difficile bacteria infection)
  2. Foot fracture
  3. Night sweats (sweating in night)
  4. Urinary tract infection
  5. Depression
  6. Neck pain
  7. Renal impairment (severely reduced kidney function)
  8. Abscess oral (abscess in the mouth)
  9. Acquired oesophageal web (structural abnormalities in the oesophagus)
  10. Antinuclear antibody positive

male:

  1. Anhedonia (inability to experience pleasure from activities usually found enjoyable)
  2. Anxiety
  3. Abscess oral (abscess in the mouth)
  4. Acquired oesophageal web (structural abnormalities in the oesophagus)
  5. Actinomycosis (infection that causes sores, or abscesses)
  6. Amnesia (deficit in memory caused by brain damage, disease, or psychological trauma)
  7. Anaemia (lack of blood)
  8. Antinuclear antibody positive
  9. Arthralgia (joint pain)
  10. Arthropathy

What are the common drug interactions of Phenergan and Folate, by age (0-1 to 60+)? *:

0-1:

n/a

2-9:

n/a

10-19:

  1. Pain
  2. Abdominal discomfort
  3. Anhedonia (inability to experience pleasure from activities usually found enjoyable)
  4. Anxiety
  5. Arthralgia (joint pain)
  6. Back pain
  7. Deep vein thrombosis (blood clot in a major vein that usually develops in the legs and/or pelvis)
  8. Dizziness
  9. Emotional distress
  10. Fall

20-29:

  1. Chest pain
  2. Electrocardiogram qt prolonged
  3. Injection site swelling
  4. Syncope (loss of consciousness with an inability to maintain postural tone)

30-39:

  1. Anaemia (lack of blood)
  2. Anogenital warts
  3. Blood sodium decreased
  4. Cardiopulmonary failure (cessation of normal circulation of the blood due to failure of the heart to contract)
  5. Clostridium difficile colitis (inflammation of colon by clostridium difficile bacteria infection)
  6. Electrolyte imbalance
  7. Gastroenteritis (inflammation of stomach and intestine)
  8. Haemorrhoids (a swollen vein or group of veins in the region of the anus)
  9. Hyperkalaemia (damage to or disease of the kidney)
  10. Hypocalcaemia (levels of calcium in blood serum are abnormally low)

40-49:

  1. Abdominal pain upper
  2. Fungal infection
  3. Malaise (a feeling of general discomfort or uneasiness)

50-59:

  1. Acquired oesophageal web (structural abnormalities in the oesophagus)
  2. Antinuclear antibody positive
  3. Arthralgia (joint pain)
  4. Asthma
  5. Bone lesion (bone with abnormalities. bone lesions can result from growth formations, infections, or injuries)
  6. Bone marrow failure
  7. Clostridium difficile colitis (inflammation of colon by clostridium difficile bacteria infection)
  8. Dental discomfort
  9. Dysphagia (a condition in which swallowing is difficult or painful)
  10. Fat tissue increased

60+:

  1. Anxiety
  2. Fall
  3. Diarrhoea
  4. Duodenal ulcer haemorrhage (bleeding duodenal ulcer)
  5. Dyspnoea (difficult or laboured respiration)
  6. Emotional distress
  7. Joint range of motion decreased (disease of joint movement)
  8. Large intestine perforation (hole in large intestine)
  9. Myalgia (muscle pain)
  10. Pleural effusion (water on the lungs)

What are the existing conditions these people have? *

  1. Multiple Myeloma (cancer of the plasma cells): 14 people, 26.42%
  2. Stress And Anxiety: 8 people, 15.09%
  3. Pain: 6 people, 11.32%
  4. Diarrhea: 6 people, 11.32%
  5. High Blood Pressure: 5 people, 9.43%
  6. Hiv Infection: 5 people, 9.43%
  7. Hypothyroidism (abnormally low activity of the thyroid gland, resulting in retardation of growth and mental development): 5 people, 9.43%
  8. Hypersensitivity: 4 people, 7.55%
  9. Constipation: 4 people, 7.55%
  10. Primary Myelofibrosis (primary disorder of the bone marrow): 4 people, 7.55%

* Approximation only. Some reports may have incomplete information.

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Related studies:

Effectiveness of, side effects of, and alternative drugs to the 2 drugs:

Browse all drug interactions of Phenergan and Folate:

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

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 Phenergan:

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 side effects of Folate:

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 interactions between Phenergan and drugs from A to Z:

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 interactions between Folate and drugs from A to Z:

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

Related publications that referenced our studies


How the study uses the data?

The study uses data from the FDA. It is based on promethazine hydrochloride and folic acid (the active ingredients of Phenergan and Folate, respectively), and Phenergan and Folate (the brand names). 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.

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