Vistaril and Minipress drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Vistaril (hydroxyzine hydrochloride) and Minipress (prazosin hydrochloride). Common drug interactions include drug ineffective among females and parasomnia among males.

The phase IV clinical study analyzes what interactions people have when they take Vistaril and Minipress. It is created by eHealthMe based on reports of 27 people who take the same drugs from the FDA, and is updated regularly.

What is Vistaril?

Vistaril has active ingredients of hydroxyzine hydrochloride. It is often used in stress and anxiety. eHealthMe is studying from 9,565 Vistaril users. Check the latest studies of Vistaril.

What is Minipress?

Minipress has active ingredients of prazosin hydrochloride. It is often used in post-traumatic stress disorder. eHealthMe is studying from 2,213 Minipress users. Check the latest studies of Minipress.



On Aug, 01, 2026

27 people who take Vistaril and Minipress together, and have interactions are studied.

Vistaril and Minipress drug interactions.

What are the common drug interactions of Vistaril and Minipress, by gender? *:

female:

  1. Drug ineffective
  2. Pain
  3. Malabsorption (a state arising from abnormality in absorption of food nutrients across the gastrointestinal (gi) tract)
  4. Suicide attempt
  5. Weight decreased
  6. Alopecia (absence of hair from areas of the body)
  7. Pneumonia
  8. Pulmonary oedema (fluid accumulation in the lungs)
  9. Suicidal ideation
  10. Aggression

male:

  1. Parasomnia (sleep disorders that involve abnormal and unnatural movements, behaviours, emotions, perceptions)
  2. Abnormal behaviour
  3. Weight decreased
  4. White blood cell count decreased
  5. Cardiac arrest
  6. Drug abuse
  7. Drug withdrawal syndrome (interfere with normal social, occupational, or other functioning. are not due to another medical condition, drug use, or discontinuation)
  8. Energy increased
  9. Loss of consciousness
  10. Psychotic disorder

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

0-1:

n/a

2-9:

n/a

10-19:

n/a

20-29:

  1. Parasomnia (sleep disorders that involve abnormal and unnatural movements, behaviours, emotions, perceptions)
  2. Abdominal pain upper
  3. Ill-defined disorder
  4. Sinus tachycardia (a heart rhythm with elevated rate of impulses originating from the sinoatrial node)
  5. Vertigo
  6. Vomiting

30-39:

  1. Drug ineffective
  2. Pain
  3. Acute myocardial infarction (acute heart attack)
  4. Back pain
  5. Bipolar disorder (mood disorder)
  6. Cardiac arrest
  7. Circulatory collapse
  8. Drug abuse
  9. Drug withdrawal syndrome (interfere with normal social, occupational, or other functioning. are not due to another medical condition, drug use, or discontinuation)
  10. Dyspnoea (difficult or laboured respiration)

40-49:

  1. Aggression
  2. Aura
  3. Confusional state
  4. Mass
  5. Memory impairment
  6. Migraine (headache)
  7. Neoplasm (tumour)
  8. Aphonia (inability to produce voice)
  9. Cardiac valve disease (heart valve disease)
  10. Dry throat

50-59:

  1. Adverse event
  2. Dissociation
  3. Energy increased
  4. Sedation

60+:

  1. Malabsorption (a state arising from abnormality in absorption of food nutrients across the gastrointestinal (gi) tract)
  2. Suicide attempt
  3. Weight decreased
  4. Cardiac arrest
  5. Chronic kidney disease
  6. Hyperkalaemia (damage to or disease of the kidney)
  7. Hyperparathyroidism secondary (an abnormally high concentration of parathyroid hormone in the blood, resulting in weakening of the bones through loss of calcium-secondary)
  8. Nephrogenic anaemia (anaemia due to kidney disease)
  9. Pain
  10. Renal failure (kidney dysfunction)

What are the existing conditions these people have? *

  1. Depression: 5 people, 18.52%
  2. Bipolar Disorder (mood disorder): 5 people, 18.52%
  3. Nightmares (unpleasant dreams): 3 people, 11.11%
  4. High Blood Pressure: 3 people, 11.11%
  5. Gastroesophageal Reflux Disease (a condition in which stomach contents leak backward from the stomach into the oesophagus): 3 people, 11.11%
  6. Asthma: 3 people, 11.11%
  7. Seizures (abnormal excessive or synchronous neuronal activity in the brain): 2 people, 7.41%
  8. Schizophrenia (a mental disorder characterized by a breakdown of thought processes): 2 people, 7.41%
  9. Schizoaffective Disorder Bipolar Type (mental illness featuring schizophrenia and a mood disorder with mania): 2 people, 7.41%
  10. Pain: 2 people, 7.41%

* Approximation only. Some reports may have incomplete information.

Do you take Vistaril and Minipress?

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Related studies:

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

Browse all drug interactions of Vistaril and Minipress:

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 Vistaril:

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 Minipress:

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 Vistaril 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 Minipress 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 hydroxyzine hydrochloride and prazosin hydrochloride (the active ingredients of Vistaril and Minipress, respectively), and Vistaril and Minipress (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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