Plaquenil and Olmetec drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Plaquenil (hydroxychloroquine sulfate) and Olmetec (olmesartan medoxomil). Common drug interactions include chest pain among females and acidosis among males.

The phase IV clinical study analyzes what interactions people have when they take Plaquenil and Olmetec. It is created by eHealthMe based on reports of 65 people who take the same drugs from the FDA, and is updated regularly.

What is Plaquenil?

Plaquenil has active ingredients of hydroxychloroquine sulfate. It is often used in systemic lupus erythematosus. eHealthMe is studying from 91,018 Plaquenil users. Check the latest studies of Plaquenil.

What is Olmetec?

Olmetec has active ingredients of olmesartan medoxomil. It is often used in high blood pressure. eHealthMe is studying from 7,904 Olmetec users. Check the latest studies of Olmetec.



On Jul, 10, 2026

65 people who take Plaquenil and Olmetec together, and have interactions are studied.

Plaquenil and Olmetec drug interactions.

What are the common drug interactions of Plaquenil and Olmetec, by gender? *:

female:

  1. Chest pain
  2. Diabetes mellitus (diabetes, caused by a deficiency of the pancreatic hormone insulin)
  3. Hepatic enzyme increased
  4. Hyperlipidaemia (presence of excess lipids in the blood)
  5. Joint swelling
  6. Knee arthroplasty
  7. Multiple-drug resistance
  8. Oedema peripheral (superficial swelling)
  9. Peripheral swelling
  10. Varicose vein (veins that have become enlarged and tortuous)

male:

  1. Acidosis (build-up of carbon dioxide in the blood)
  2. Blood creatinine increased
  3. Tension headache
  4. Upper respiratory tract infection
  5. Urticaria (rash of round, red welts on the skin that itch intensely)
  6. Hyperkalaemia (damage to or disease of the kidney)
  7. Acute respiratory distress syndrome
  8. Herpes zoster
  9. Liver disorder (liver diseases)
  10. Malaise (a feeling of general discomfort or uneasiness)

What are the common drug interactions of Plaquenil and Olmetec, 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. Pyrexia (fever)
  2. Diarrhoea
  3. Upper respiratory tract infection
  4. Acidosis (build-up of carbon dioxide in the blood)
  5. Blood creatinine increased
  6. Cellulitis (infection under the skin)
  7. Chest pain
  8. Contusion (a type of hematoma of tissue in which capillaries)
  9. Erythema multiforme (a type of hypersensitivity reaction)
  10. Pharyngitis (inflammation of the pharynx, causing a sore throat)

40-49:

  1. Fatigue (feeling of tiredness)
  2. Fluid retention (an abnormal accumulation of fluid in the blood)
  3. Headache (pain in head)
  4. Nausea (feeling of having an urge to vomit)
  5. Oropharyngeal plaque (hard deposit on oropharynx)
  6. Peripheral swelling
  7. Pneumonia
  8. Somnolence (a state of near-sleep, a strong desire for sleep)
  9. Vomiting
  10. Hypoaesthesia (reduced sense of touch or sensation)

50-59:

  1. Hand fracture

60+:

  1. Arthralgia (joint pain)
  2. Pain
  3. Chest discomfort
  4. Cough
  5. Infusion related reaction
  6. Mouth ulceration (mouth ulcers)
  7. Oedema (fluid collection in tissue)
  8. Oxygen saturation decreased
  9. Rash erythematous (redness of the skin)
  10. Blood pressure decreased

What are the existing conditions these people have? *

  1. Rheumatoid Arthritis (a chronic progressive disease causing inflammation in the joints): 45 people, 69.23%
  2. Lupus Nephritis (a chronic inflammatory autoimmune disorder that may affect kidney tissue): 8 people, 12.31%
  3. Fever: 8 people, 12.31%
  4. Diarrhea: 8 people, 12.31%
  5. Cellulitis (infection under the skin): 8 people, 12.31%
  6. Pharyngitis (inflammation of the pharynx, causing a sore throat): 6 people, 9.23%
  7. Erythema Multiforme (a type of hypersensitivity reaction): 6 people, 9.23%
  8. Chest Pain: 6 people, 9.23%
  9. High Blood Cholesterol: 5 people, 7.69%

* Approximation only. Some reports may have incomplete information.

Do you take Plaquenil and Olmetec?

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Related studies:

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

Browse all drug interactions of Plaquenil and Olmetec:

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 Plaquenil:

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 Olmetec:

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 Plaquenil 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 Olmetec 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 hydroxychloroquine sulfate and olmesartan medoxomil (the active ingredients of Plaquenil and Olmetec, respectively), and Plaquenil and Olmetec (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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