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

Summary:

Drug interactions are reported among people who take Minipress (prazosin hydrochloride) and Sinemet (carbidopa; levodopa). Common drug interactions include hallucination among females and drug ineffective among males.

The phase IV clinical study analyzes what interactions people have when they take Minipress and Sinemet. It is created by eHealthMe based on reports of 16 people who take the same drugs from the FDA, and is updated regularly.

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.

What is Sinemet?

Sinemet has active ingredients of carbidopa; levodopa. It is often used in parkinson's disease. eHealthMe is studying from 29,601 Sinemet users. Check the latest studies of Sinemet.



On Aug, 08, 2026

16 people who take Minipress and Sinemet together, and have interactions are studied.

Minipress and Sinemet drug interactions.

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

female:

  1. Hallucination (an experience involving the perception of something not present)
  2. Incoherent (talking in a confused and unclear way)
  3. Psychotic disorder
  4. Anaemia (lack of blood)
  5. Postural hypotension
  6. Renal haemorrhage (bleeding from kidney)
  7. Sedation
  8. Urinary tract infection
  9. Vaginal haemorrhage (vaginal bleeding)
  10. Appetite increased (increased appetite is when you want to eat much more often or in larger quantities than your body requires)

male:

  1. Drug ineffective
  2. Insomnia (sleeplessness)
  3. Hallucination, visual (seeing things that aren't there)
  4. Herpes zoster
  5. Myalgia (muscle pain)
  6. Pain
  7. Pemphigoid (tense blisters on the skin)
  8. Rash
  9. Restlessness (not able to rest)
  10. Tic (a sudden, repetitive, nonrhythmic motor movement or vocalization involving discrete muscle groups)

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

0-1:

n/a

2-9:

n/a

10-19:

n/a

20-29:

n/a

30-39:

n/a

40-49:

n/a

50-59:

n/a

60+:

  1. Insomnia (sleeplessness)
  2. Drug ineffective
  3. Postural hypotension
  4. Renal haemorrhage (bleeding from kidney)
  5. Sedation
  6. Urinary tract infection
  7. Vaginal haemorrhage (vaginal bleeding)
  8. Appetite increased (increased appetite is when you want to eat much more often or in larger quantities than your body requires)
  9. Asthenia (weakness)
  10. Cerebrovascular accident (sudden death of some brain cells due to lack of oxygen when the blood flow to the brain is impaired by blockage or rupture)

What are the existing conditions these people have? *

  1. High Blood Pressure: 2 people, 12.50%
  2. Hallucinations (sensations that appear real but are created by your mind): 2 people, 12.50%
  3. Diabetes: 2 people, 12.50%
  4. Delusion (a false belief or opinion): 2 people, 12.50%
  5. Sleep Terror (felling of terror in sleep): 1 person, 6.25%
  6. Schizophrenia, Paranoid Type (delusions and auditory hallucinations but relatively normal intellectual functioning and expression of affect): 1 person, 6.25%
  7. Psychotic Disorder: 1 person, 6.25%
  8. Psoriatic Arthropathy (inflammation of the skin and joints with kin condition which typically causes patches (plaques) of red, scaly skin to develop): 1 person, 6.25%

* Approximation only. Some reports may have incomplete information.

Do you take Minipress and Sinemet?

- 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 Minipress and Sinemet:

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 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 side effects of Sinemet:

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

Browse all interactions between Sinemet 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

How the study uses the data?

The study uses data from the FDA. It is based on prazosin hydrochloride and carbidopa; levodopa (the active ingredients of Minipress and Sinemet, respectively), and Minipress and Sinemet (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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