Zyrtec and Cevimeline drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Zyrtec (cetirizine hydrochloride) and Cevimeline (cevimeline hydrochloride). Common drug interactions include fatigue among females and meningitis aseptic among males.

The phase IV clinical study analyzes what interactions people have when they take Zyrtec and Cevimeline. It is created by eHealthMe based on reports of 47 people who take the same drugs from the FDA, and is updated regularly.

What is Zyrtec?

Zyrtec has active ingredients of cetirizine hydrochloride. It is often used in allergies. eHealthMe is studying from 114,619 Zyrtec users. Check the latest studies of Zyrtec.

What is Cevimeline?

Cevimeline has active ingredients of cevimeline hydrochloride. It is often used in sjogren syndrome. eHealthMe is studying from 1,480 Cevimeline users. Check the latest studies of Cevimeline.



On Jul, 25, 2026

47 people who take Zyrtec and Cevimeline together, and have interactions are studied.

Zyrtec and Cevimeline drug interactions.

What are the common drug interactions of Zyrtec and Cevimeline, by gender? *:

female:

  1. Fatigue (feeling of tiredness)
  2. Diarrhoea
  3. Accident at home
  4. Foot fracture
  5. Oropharyngeal pain
  6. Pseudomonas infection (pseudomonas infection is caused by a bacterium, pseudomonas aeruginosa)
  7. Arthritis (form of joint disorder that involves inflammation of one or more joints)
  8. Malaise (a feeling of general discomfort or uneasiness)
  9. Osteochondrosis (a family of orthopaedic diseases of the joint that occur in children and adolescents)
  10. Pruritus (severe itching of the skin)

male:

  1. Meningitis aseptic (a condition that causes the membranes covering your brain and spinal cord to become inflamed)
  2. Sleep disorder
  3. Stomatitis (inflammation of mucous membrane of mouth)
  4. Dermatitis atopic (inflammatory, chronically relapsing, non-contagious and pruritic skin disorder)
  5. Drug ineffective
  6. Dry mouth
  7. Fatigue (feeling of tiredness)
  8. Injection site reaction
  9. Muscle strain (an injury to a muscle in which the muscle fibres tear)
  10. Muscle tightness

What are the common drug interactions of Zyrtec and Cevimeline, 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:

  1. Dysphonia (speech disorder attributable to a disorder of phonation)
  2. Dyspnoea (difficult or laboured respiration)
  3. Fatigue (feeling of tiredness)
  4. Feeling cold
  5. Fluid overload (too much fluid in the blood)
  6. Insomnia (sleeplessness)
  7. Nephropathy (damage to or disease of a kidney)
  8. Oxygen consumption increased
  9. Peripheral swelling
  10. Cardiac failure congestive

50-59:

  1. Pruritus (severe itching of the skin)
  2. Drug hypersensitivity
  3. Pulmonary fibrosis (formation or development of excess fibrous connective tissue (fibrosis) in the lungs)
  4. Rales (an abnormal respiratory sound characterized by fine crackles)
  5. Upper-airway cough syndrome
  6. Contusion (a type of hematoma of tissue in which capillaries)
  7. Death
  8. Dermatitis atopic (inflammatory, chronically relapsing, non-contagious and pruritic skin disorder)
  9. Drug ineffective
  10. Fatigue (feeling of tiredness)

60+:

  1. Fatigue (feeling of tiredness)
  2. Accident at home
  3. Hallucination (an experience involving the perception of something not present)
  4. Immunoglobulins decreased
  5. Malaise (a feeling of general discomfort or uneasiness)
  6. Psychotic disorder
  7. Renal failure (kidney dysfunction)
  8. Weight decreased
  9. Alopecia (absence of hair from areas of the body)
  10. Blood albumin decreased

What are the existing conditions these people have? *

  1. Asthma: 8 people, 17.02%
  2. Rheumatoid Arthritis (a chronic progressive disease causing inflammation in the joints): 7 people, 14.89%
  3. Immunodeficiency Common Variable: 6 people, 12.77%
  4. Hypersensitivity: 6 people, 12.77%
  5. Stress And Anxiety: 5 people, 10.64%
  6. Primary Immunodeficiency Syndrome: 5 people, 10.64%
  7. High Blood Cholesterol: 4 people, 8.51%
  8. Salivary Hypersecretion (excess saliva secretion): 3 people, 6.38%
  9. Pain: 3 people, 6.38%
  10. Insomnia (sleeplessness): 3 people, 6.38%

* Approximation only. Some reports may have incomplete information.

Do you take Zyrtec and Cevimeline?

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Related studies:

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

Browse all drug interactions of Zyrtec and Cevimeline:

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 Zyrtec:

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 Cevimeline:

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 Zyrtec 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 Cevimeline 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 cetirizine hydrochloride and cevimeline hydrochloride (the active ingredients of Zyrtec and Cevimeline, respectively), and Zyrtec and Cevimeline (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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