Alavert and Flu - a phase IV clinical study of FDA data

Summary:

Flu is reported as a side effect among people who take Alavert (loratadine), especially for people who are female, 30-39 old, also take Acetaminophen, and have Relapsing-remitting multiple sclerosis.

The phase IV clinical study analyzes which people have Flu when taking Alavert. It is created by eHealthMe based on reports of 1,865 people who have side effects when taking Alavert from the FDA, and is updated regularly.

What is Alavert?

Alavert has active ingredients of loratadine. It is often used in allergies. eHealthMe is studying from 2,061 Alavert users. Check the latest studies of Alavert.

What is Flu?

Flu (chills, fever, runny nose, sore throat, muscle pains, headache (often severe), coughing, weakness/fatigue and general discomfort) is found to be associated with 2,387 drugs and 2,696 conditions by eHealthMe. Check the latest studies of Flu.

On Jan, 18, 2026

1,865 people reported to have side effects when taking Alavert.
Among them, 20 people (1.07%) have Flu.

Among these 20 people:

What is the gender of people who have Flu when taking Alavert? *

female: 94.74 %
male: 5.26 %

What is the age of people who have Flu when taking Alavert? *

What are other drugs people take besides Alavert? *

Acetaminophen: 8 people, 40.00%
Ocrevus: 6 people, 30.00%
Aspirin: 6 people, 30.00%
Vitamin D3: 5 people, 25.00%
Melatonin: 5 people, 25.00%
Cephalexin: 5 people, 25.00%
Levoxyl: 4 people, 20.00%
Heparin: 4 people, 20.00%
Hydrocodone: 4 people, 20.00%
Hydroxychloroquine Sulfate: 4 people, 20.00%

What are other side effects people have besides Flu? *

Fatigue (feeling of tiredness): 12 people, 60.00%
Weakness: 11 people, 55.00%
Nausea (feeling of having an urge to vomit): 11 people, 55.00%
Headache (pain in head): 10 people, 50.00%
Dizziness: 10 people, 50.00%
Nasopharyngitis (inflammation of the nasopharynx): 9 people, 45.00%
Migraine (headache): 9 people, 45.00%
Diarrhea: 7 people, 35.00%
Body Temperature Increased: 7 people, 35.00%
Chest Pain: 7 people, 35.00%

What are the existing conditions these people have? *

Relapsing-Remitting Multiple Sclerosis (reoccurrence of an inflammatory disease in which the insulating covers of nerve cells in the brain and spinal cord are damaged): 6 people, 30.00%
Hypersensitivity: 4 people, 20.00%
Lichen Myxoedematosus (deposition of acid mucopolysaccharides in the skin): 4 people, 20.00%
Cataplexy (loss of muscle tone accompanied by full conscious awareness): 2 people, 10.00%
Narcolepsy (brain's inability to regulate sleep-wake cycles normally): 2 people, 10.00%
Multiple Sclerosis (a nervous system disease that affects your brain and spinal cord. it damages the myelin sheath): 2 people, 10.00%
Ulcerative Colitis (inflammatory bowel disease (ibd). it causes swelling, ulcerations, and loss of function of the large intestine): 1 person, 5.00%
Lacrimation Increased: 1 person, 5.00%
Birth Control: 1 person, 5.00%
Blood Pressure Abnormal: 1 person, 5.00%

* Approximation only. Some reports may have incomplete information.

Do you take Alavert and have Flu?

- Check whether Flu is associated with a drug or a condition
- Predict drug outcomes for up to one year with AI
- Get an AI agent to monitor your drugs continuously

Related studies:

Effectiveness of, long term effects of, and alternative drugs to Alavert:

Alavert (2,061 reports)

Flu treatments and more:

Flu (145,738 reports)

Browse all side effects of Alavert:

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 the drugs that are associated with Flu:

Flu (2,387 drugs)

Browse all the conditions that are associated with Flu:

Flu (2,696 conditions)

How the study uses the data?

The study uses data from the FDA. It is based on loratadine (the active ingredients of Alavert) and Alavert (the brand name). 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.