Cozaar and Peg-intron drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Cozaar (losartan potassium) and Peg-intron (peginterferon alfa-2b). Common drug interactions include infection among females and nausea among males.

The phase IV clinical study analyzes what interactions people have when they take Cozaar and Peg-intron. It is created by eHealthMe based on reports of 23 people who take the same drugs from the FDA, and is updated regularly.

What is Cozaar?

Cozaar has active ingredients of losartan potassium. It is often used in high blood pressure. eHealthMe is studying from 45,124 Cozaar users. Check the latest studies of Cozaar.

What is Peg-intron?

Peg-intron has active ingredients of peginterferon alfa-2b. eHealthMe is studying from 11,142 Peg-intron users. Check the latest studies of Peg-intron.



On Jul, 13, 2026

23 people who take Cozaar and Peg-intron together, and have interactions are studied.

Cozaar and Peg-intron drug interactions.

What are the common drug interactions of Cozaar and Peg-Intron, by gender? *:

female:

  1. Infection
  2. Injection site cellulitis (injection site inflammation)
  3. Iris disorder
  4. Joint injury
  5. Joint stiffness
  6. Knee arthroplasty
  7. Lymphadenopathy (disease or enlargement of lymph nodes)
  8. Lymphadenopathy mediastinal (an enlargement of the lymph nodes in the part of the chest that separates the lungs)
  9. Multiple myeloma (cancer of the plasma cells)
  10. Muscle spasms (muscle contraction)

male:

  1. Nausea (feeling of having an urge to vomit)
  2. Decreased appetite
  3. Pain
  4. Pain in extremity
  5. Pitting oedema (skin discoloration)
  6. Seroma (a tumour like collection of serum in the tissues)
  7. Staphylococcal infection (an infection with staphylococcus bacteria)
  8. Arthralgia (joint pain)
  9. Chills (felling of cold)
  10. Erythema (redness of the skin)

What are the common drug interactions of Cozaar and Peg-Intron, 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. Anaemia (lack of blood)
  2. Blindness unilateral
  3. Headache (pain in head)
  4. Oedema (fluid collection in tissue)
  5. Optic disc disorder (disease of optic disc of eye)
  6. Pupillary disorder (disorder of the pupil of eyes)
  7. Retinal exudates (discharge from retina)
  8. Retinopathy (acute damage to the retina of the eye)

40-49:

  1. Retinopathy (acute damage to the retina of the eye)
  2. Vision blurred

50-59:

  1. Skin induration (an abnormally hard spot or area on the skin)
  2. Skin ulcer
  3. Staphylococcal abscess (pus formation due to staphylococcal bacteria)
  4. Visual acuity reduced (reduced clearness of vision)
  5. Vomiting
  6. Nausea (feeling of having an urge to vomit)
  7. Decreased appetite
  8. Hyponatraemia (abnormally low level of sodium in the blood; associated with dehydration)
  9. Weight decreased
  10. Anaemia (lack of blood)

60+:

  1. Headache (pain in head)
  2. Anaemia (lack of blood)
  3. Chest pain
  4. Chills (felling of cold)
  5. Coagulopathy (blood's ability to clot is impaired)
  6. Deep vein thrombosis (blood clot in a major vein that usually develops in the legs and/or pelvis)
  7. Dehydration (dryness resulting from the removal of water)
  8. Dizziness
  9. Dyskinesia (abnormality or impairment of voluntary movement)
  10. Eating disorder

What are the existing conditions these people have? *

  1. Hepatitis C: 20 people, 86.96%

* Approximation only. Some reports may have incomplete information.

Do you take Cozaar and Peg-intron?

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Related studies:

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

Browse all drug interactions of Cozaar and Peg-intron:

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 Cozaar:

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 Peg-intron:

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 Cozaar 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 Peg-intron 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 losartan potassium and peginterferon alfa-2b (the active ingredients of Cozaar and Peg-intron, respectively), and Cozaar and Peg-intron (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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