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

Summary:

Drug interactions are reported among people who take Phenergan (promethazine hydrochloride) and Zestoretic (hydrochlorothiazide; lisinopril). Common drug interactions include diabetes mellitus among females and pain among males.

The phase IV clinical study analyzes what interactions people have when they take Phenergan and Zestoretic. It is created by eHealthMe based on reports of 32 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 Zestoretic?

Zestoretic has active ingredients of hydrochlorothiazide; lisinopril. It is often used in high blood pressure. eHealthMe is studying from 4,342 Zestoretic users. Check the latest studies of Zestoretic.



On Jul, 12, 2026

32 people who take Phenergan and Zestoretic together, and have interactions are studied.

Phenergan and Zestoretic drug interactions.

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

female:

  1. Diabetes mellitus (diabetes, caused by a deficiency of the pancreatic hormone insulin)
  2. Diarrhoea
  3. Fatigue (feeling of tiredness)
  4. Gastrooesophageal reflux disease (stomach contents (food or liquid) leak backwards from the stomach into the oesophagus)
  5. Hypotension (abnormally low blood pressure)
  6. Interstitial lung disease
  7. Renal failure acute (rapid kidney dysfunction)
  8. Sepsis (a severe blood infection that can lead to organ failure and death)
  9. Tachycardia (a heart rate that exceeds the range of 100 beats/min)
  10. Urinary tract infection

male:

  1. Pain
  2. Dizziness
  3. Dehydration (dryness resulting from the removal of water)
  4. Emotional distress
  5. Tooth fracture
  6. Weight decreased
  7. Abdominal pain
  8. Arthralgia (joint pain)
  9. Back pain
  10. Blood creatinine increased

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

0-1:

n/a

2-9:

n/a

10-19:

n/a

20-29:

  1. Depression
  2. Diabetes mellitus (diabetes, caused by a deficiency of the pancreatic hormone insulin)
  3. Fall
  4. Humerus fracture (injury to the upper arm bone)
  5. Hyperglycaemia (high blood sugar)
  6. Multiple fractures
  7. Osteoporosis (bones weak and more likely to break)
  8. Pregnancy
  9. Upper limb fracture

30-39:

n/a

40-49:

  1. Anxiety
  2. Chronic kidney disease
  3. Pain
  4. Anhedonia (inability to experience pleasure from activities usually found enjoyable)
  5. Dizziness
  6. Emotional distress
  7. Febrile neutropenia (fever with reduced white blood cells)
  8. Tooth fracture
  9. Bone density decreased
  10. Dehydration (dryness resulting from the removal of water)

50-59:

  1. Metabolic acidosis (body produces too much acid, or when the kidneys are not removing enough acid from the body)
  2. Multi-organ failure (multisystem organ failure)
  3. Myocardial infarction (destruction of heart tissue resulting from obstruction of the blood supply to the heart muscle)
  4. Pain
  5. Pancreatitis (inflammation of pancreas)
  6. Plasma cell myeloma (cancer that begins in plasma cells)
  7. Anaemia (lack of blood)
  8. Hypotension (abnormally low blood pressure)
  9. Interstitial lung disease
  10. Renal failure (kidney dysfunction)

60+:

  1. Neoplasm malignant (cancer tumour)
  2. Decreased appetite
  3. Blood glucose increased
  4. Cardiac failure congestive
  5. Chronic kidney disease
  6. Constipation
  7. Dizziness
  8. Drug ineffective
  9. Ear pain
  10. Epistaxis (bleed from the nose)

What are the existing conditions these people have? *

  1. Pain: 8 people, 25.00%
  2. Stress And Anxiety: 7 people, 21.88%
  3. Gastroesophageal Reflux Disease (a condition in which stomach contents leak backward from the stomach into the oesophagus): 6 people, 18.75%
  4. Depression: 5 people, 15.62%
  5. Nausea And Vomiting: 5 people, 15.62%
  6. Hiv Infection: 4 people, 12.50%
  7. Bleeding Disorders: 4 people, 12.50%
  8. Neuralgia (pain in one or more nerves): 4 people, 12.50%
  9. Type 2 Diabetes: 3 people, 9.38%
  10. Blood Glucose Abnormal: 3 people, 9.38%

* 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 Zestoretic:

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 Zestoretic:

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 Zestoretic 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 hydrochlorothiazide; lisinopril (the active ingredients of Phenergan and Zestoretic, respectively), and Phenergan and Zestoretic (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.



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