Decadron and Tiazac drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Decadron (dexamethasone) and Tiazac (diltiazem hydrochloride). Common drug interactions include anhedonia among females and dyspnoea among males.

The phase IV clinical study analyzes what interactions people have when they take Decadron and Tiazac. It is created by eHealthMe based on reports of 30 people who take the same drugs from the FDA, and is updated regularly.

What is Decadron?

Decadron has active ingredients of dexamethasone. It is often used in multiple myeloma. eHealthMe is studying from 47,210 Decadron users. Check the latest studies of Decadron.

What is Tiazac?

Tiazac has active ingredients of diltiazem hydrochloride. It is often used in high blood pressure. eHealthMe is studying from 4,761 Tiazac users. Check the latest studies of Tiazac.



On Jul, 10, 2026

30 people who take Decadron and Tiazac together, and have interactions are studied.

Decadron and Tiazac drug interactions.

What are the common drug interactions of Decadron and Tiazac, by gender? *:

female:

  1. Anhedonia (inability to experience pleasure from activities usually found enjoyable)
  2. Anxiety
  3. Bronchitis acute (acute inflammation of the mucous membrane in the bronchial tubes)
  4. Chest pain
  5. Chest tightness
  6. Complications of maternal exposure to therapeutic drugs
  7. Depression
  8. Drug dependence
  9. Drug ineffective
  10. Drug withdrawal syndrome (interfere with normal social, occupational, or other functioning. are not due to another medical condition, drug use, or discontinuation)

male:

  1. Dyspnoea (difficult or laboured respiration)
  2. Hypotension (abnormally low blood pressure)
  3. Fatigue (feeling of tiredness)
  4. Hypoxia (low oxygen in tissues)
  5. Neutropenia (an abnormally low number of neutrophils)
  6. Pain
  7. Anxiety
  8. Blood glucose increased
  9. Blood urine present
  10. Convulsions (muscles contract and relax rapidly and repeatedly, resulting in an uncontrolled of muscles contract and relax rapidly and repeatedly)

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

0-1:

n/a

2-9:

n/a

10-19:

n/a

20-29:

n/a

30-39:

  1. Pain
  2. Abortion (termination of pregnancy)
  3. Anhedonia (inability to experience pleasure from activities usually found enjoyable)
  4. Anxiety
  5. Bronchitis acute (acute inflammation of the mucous membrane in the bronchial tubes)
  6. Chest pain
  7. Chest tightness
  8. Complications of maternal exposure to therapeutic drugs
  9. Depression
  10. Drug dependence

40-49:

n/a

50-59:

  1. Cerebral atrophy (decrement in size of brain)
  2. Compression fracture (fracture due to pressure caused by injury)
  3. Confusional state
  4. Constipation
  5. Coronary artery disease (plaque building up along the inner walls of the arteries of the heart, which narrows the arteries and restricts blood flow to the heart)
  6. Cough
  7. Death
  8. Decubitus ulcer (a chronic ulcer of the skin caused by prolonged pressure on it)
  9. Deep vein thrombosis (blood clot in a major vein that usually develops in the legs and/or pelvis)
  10. Dehydration (dryness resulting from the removal of water)

60+:

  1. Dyspnoea (difficult or laboured respiration)
  2. Paraesthesia (sensation of tingling, tickling, prickling, pricking, or burning of a person's skin with no apparent long-term physical effect)
  3. Fatigue (feeling of tiredness)
  4. Haemoglobin decreased
  5. Hypotension (abnormally low blood pressure)
  6. Hypoxia (low oxygen in tissues)
  7. Lung infiltration (a substance that normally includes fluid, inflammatory exudates or cells that fill a region of lung)
  8. Muscle spasms (muscle contraction)
  9. Nausea (feeling of having an urge to vomit)
  10. Oedema (fluid collection in tissue)

What are the existing conditions these people have? *

  1. Prostate Cancer: 3 people, 10.00%
  2. Pain: 2 people, 6.67%
  3. Nausea (feeling of having an urge to vomit): 2 people, 6.67%
  4. Haemorrhoids (a swollen vein or group of veins in the region of the anus): 2 people, 6.67%
  5. Depression: 2 people, 6.67%
  6. Constipation: 2 people, 6.67%
  7. Bone Disorder: 2 people, 6.67%

* 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 Decadron and Tiazac:

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 Decadron:

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 Tiazac:

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 Decadron 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 Tiazac 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 dexamethasone and diltiazem hydrochloride (the active ingredients of Decadron and Tiazac, respectively), and Decadron and Tiazac (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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