1. Home
  2. Analysis
  3. Donepezil-hydrochloride
  4. Ergocalciferol

Donepezil hydrochloride and Ergocalciferol drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Donepezil hydrochloride (donepezil hydrochloride) and Ergocalciferol (ergocalciferol). Common drug interactions include pneumonia among females and constipation among males.

The phase IV clinical study analyzes what interactions people have when they take Donepezil hydrochloride and Ergocalciferol. It is created by eHealthMe based on reports of 22 people who take the same drugs from the FDA, and is updated regularly.

What is Donepezil hydrochloride?

Donepezil hydrochloride has active ingredients of donepezil hydrochloride. It is often used in dementia. eHealthMe is studying from 4,263 Donepezil hydrochloride users. Check the latest studies of Donepezil hydrochloride.

What is Ergocalciferol?

Ergocalciferol has active ingredients of ergocalciferol. It is often used in rickets. eHealthMe is studying from 32,652 Ergocalciferol users. Check the latest studies of Ergocalciferol.

eHealthMe: drug outcomes in the real world

eHealthMe runs one of the largest post-marketing drug safety studies in the world. We study millions of patients and 5,000 more each day. Our data-driven phase IV clinical trials have been referenced on 800+ peer-reviewed medical publications including The Lancet, Mayo Clinic Proceedings, and Nature. Tools to study our phase IV findings are available to the public, anonymous and free >>>.

On Aug, 24, 2026

22 people who take Donepezil hydrochloride and Ergocalciferol together, and have interactions are studied.

Donepezil hydrochloride and Ergocalciferol drug interactions.

What are the common drug interactions of Donepezil Hydrochloride and Ergocalciferol, by gender? *:

female:

  1. Pneumonia
  2. Fall
  3. Seizure (abnormal excessive or synchronous neuronal activity in the brain)
  4. Surgery
  5. Amnesia (deficit in memory caused by brain damage, disease, or psychological trauma)
  6. Anaemia (lack of blood)
  7. Aphasia (damage to the parts of the brain that control language)
  8. Aphonia (inability to produce voice)
  9. Asthenia (weakness)
  10. Balance disorder

male:

  1. Constipation
  2. Fall
  3. Dry mouth
  4. Dyspnoea (difficult or laboured respiration)
  5. Fatigue (feeling of tiredness)
  6. Gait disturbance
  7. Hallucination, auditory (perceiving sounds without auditory stimulus)
  8. Hallucination, olfactory (sensations of smelling something that is actually not there)
  9. Hypoaesthesia (reduced sense of touch or sensation)
  10. Insomnia (sleeplessness)

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

0-1:

n/a

2-9:

n/a

10-19:

n/a

20-29:

  1. Electrocardiogram qt prolonged

30-39:

n/a

40-49:

  1. Blood sodium decreased
  2. Concussion (short loss of normal brain function in response to a head injury)
  3. Fall
  4. Infection
  5. Limb injury
  6. Pneumonia
  7. Seizure (abnormal excessive or synchronous neuronal activity in the brain)
  8. Surgery

50-59:

  1. Amnesia (deficit in memory caused by brain damage, disease, or psychological trauma)
  2. Aphasia (damage to the parts of the brain that control language)
  3. Aphonia (inability to produce voice)
  4. Asthenia (weakness)
  5. Balance disorder
  6. Constipation
  7. Cough
  8. Diarrhoea
  9. Dizziness
  10. Fatigue (feeling of tiredness)

60+:

  1. Fall
  2. Femoral neck fracture (neck of femur bone fracture)
  3. Dizziness
  4. Dry mouth
  5. Dyspnoea (difficult or laboured respiration)
  6. Fatigue (feeling of tiredness)
  7. Hallucination, auditory (perceiving sounds without auditory stimulus)
  8. Hallucination, olfactory (sensations of smelling something that is actually not there)
  9. Hospitalisation
  10. Hyperaesthesia

What are the existing conditions these people have? *

  1. Hyperkalemia (damage to or disease of the kidney): 5 people, 22.73%
  2. Prostate Cancer: 4 people, 18.18%
  3. Seizures (abnormal excessive or synchronous neuronal activity in the brain): 2 people, 9.09%
  4. Neuralgia (pain in one or more nerves): 2 people, 9.09%
  5. Epigastric Discomfort: 2 people, 9.09%
  6. Cystic Fibrosis (disease of the secretary glands): 2 people, 9.09%
  7. Bronchiectasis (abnormal widening of the bronchi or their branches, causing a risk of infection): 2 people, 9.09%

* Approximation only. Some reports may have incomplete information.

Do you take Donepezil hydrochloride and Ergocalciferol?

- Personalize this study to your gender, age, symptoms and drugs
- Predict drug outcomes for up to one year with AI
- Get an AI agent to monitor your drugs continuously

Related studies:

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

Browse all drug interactions of Donepezil hydrochloride and Ergocalciferol:

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 Donepezil hydrochloride:

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 Ergocalciferol:

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 Donepezil hydrochloride 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 Ergocalciferol 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 donepezil hydrochloride and ergocalciferol (the active ingredients of Donepezil hydrochloride and Ergocalciferol, respectively), and Donepezil hydrochloride and Ergocalciferol (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.

If you use this eHealthMe study on publication, please acknowledge it with a citation: study title, URL, accessed date.

Recent studies on eHealthMe:

© 2026 eHealthMe.com. All rights reserved. Use of this site constitutes acceptance of eHealthMe.com's terms of service and privacy policy.