Xyzal and Evening primrose drug interactions - a phase IV clinical study of FDA data
Summary:
Drug interactions are reported among people who take Xyzal (levocetirizine dihydrochloride) and Evening primrose (evening primrose oil). Common drug interactions include arthralgia among females.
The phase IV clinical study analyzes what interactions people have when they take Xyzal and Evening primrose. It is created by eHealthMe based on reports of 14 people who take the same drugs from the FDA, and is updated regularly.
What is Xyzal?
Xyzal has active ingredients of levocetirizine dihydrochloride. It is often used in allergies. eHealthMe is studying from 21,479 Xyzal users. Check the latest studies of Xyzal.
What is Evening primrose?
Evening primrose has active ingredients of evening primrose oil. It is often used in breast pain. eHealthMe is studying from 1,794 Evening primrose users. Check the latest studies of Evening primrose.
14 people who take Xyzal and Evening primrose together, and have interactions are studied.

What are the common drug interactions of Xyzal and Evening Primrose, by gender? *:
female:
- Arthralgia (joint pain)
- Back pain
- Insomnia (sleeplessness)
- Nephrolithiasis (calculi in the kidneys)
- Overdose
- Seizure (abnormal excessive or synchronous neuronal activity in the brain)
- Abdominal discomfort
- Anaphylactic reaction (serious allergic reaction)
- Angioedema (rapid swelling of the dermis)
- Asthma exercise induced
male:
n/a
What are the common drug interactions of Xyzal and Evening Primrose, by age (0-1 to 60+)? *:
0-1:
n/a
2-9:
n/a
10-19:
n/a
20-29:
n/a
30-39:
- Dehydration (dryness resulting from the removal of water)
- Disorientation (disability in which the senses of time, direction, and recognition of people and places)
- Dizziness
- Dry eye (lack of adequate tears)
- Dysarthria (speech disorder)
- Dyspnoea (difficult or laboured respiration)
- Ear pain
- Eye pain
- Eye swelling
- Impaired driving ability
40-49:
n/a
50-59:
- Arteriovenous malformation
- Central nervous system lesion (an abnormality in tissue of brain or spinal cord)
- Insomnia (sleeplessness)
- Overdose
- Seizure (abnormal excessive or synchronous neuronal activity in the brain)
60+:
- Anaphylactic reaction (serious allergic reaction)
- Angioedema (rapid swelling of the dermis)
What are the existing conditions these people have? *
- Immunodeficiency: 5 people, 35.71%
- Narcolepsy (brain's inability to regulate sleep-wake cycles normally): 3 people, 21.43%
- Cataplexy (loss of muscle tone accompanied by full conscious awareness): 3 people, 21.43%
- Multiple Sclerosis (a nervous system disease that affects your brain and spinal cord. it damages the myelin sheath): 2 people, 14.29%
- Vitamin B12 Deficiency: 1 person, 7.14%
- Rheumatoid Arthritis (a chronic progressive disease causing inflammation in the joints): 1 person, 7.14%
- Multiple Allergies (allergy to multiple agents): 1 person, 7.14%
- Lupus Nephritis (a chronic inflammatory autoimmune disorder that may affect kidney tissue): 1 person, 7.14%
- Hypothyroidism (abnormally low activity of the thyroid gland, resulting in retardation of growth and mental development): 1 person, 7.14%
- Hypogammaglobulinaemia (an abnormally low concentration of gamma globulin in the blood and increased risk of infection): 1 person, 7.14%
* Approximation only. Some reports may have incomplete information.
Do you take Xyzal and Evening primrose?
- 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:
- Xyzal (21,479 reports)
- Evening primrose (1,794 reports)
Browse all drug interactions of Xyzal and Evening primrose:
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 zSub-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 Xyzal:
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 zBrowse all side effects of Evening primrose:
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 zBrowse all interactions between Xyzal 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 zBrowse all interactions between Evening primrose 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 zRelated publications that referenced our studies
- Min IS, Lee JY, Jung TS, Kang NK, Park BB, Kim BK, "Development of a Complete Atrioventricular Block Associated with Intake of Evening Primrose Oil", The Korean Journal of Medicine, 2016 May .
- Min IS, Lee JY, Jung TS, Kang NK, Park BB, Kim BK, "Development of a Complete Atrioventricular Block Associated with Intake of Evening Primrose Oil", The Korean Journal of Medicine, 2016 May .
How the study uses the data?
The study uses data from the FDA. It is based on levocetirizine dihydrochloride and evening primrose oil (the active ingredients of Xyzal and Evening primrose, respectively), and Xyzal and Evening primrose (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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