Valacyclovir and Alanine aminotransferase abnormal - a phase IV clinical study of FDA data

Summary:

Alanine aminotransferase abnormal is reported as a side effect among people who take Valacyclovir (valacyclovir hydrochloride), especially for people who are male, 50-59 old, also take Ondansetron, and have Pain.

The phase IV clinical study analyzes which people have Alanine aminotransferase abnormal when taking Valacyclovir. It is created by eHealthMe based on reports of 41,259 people who have side effects when taking Valacyclovir from the FDA, and is updated regularly.

What is Valacyclovir?

Valacyclovir has active ingredients of valacyclovir hydrochloride. It is often used in genital herpes. eHealthMe is studying from 42,107 Valacyclovir users. Check the latest studies of Valacyclovir.

What is Alanine aminotransferase abnormal?

Alanine aminotransferase abnormal is found to be associated with 346 drugs and 516 conditions by eHealthMe. Check the latest studies of Alanine aminotransferase abnormal.

On Jul, 11, 2026

41,259 people reported to have side effects when taking Valacyclovir.
Among them, 11 people (0.03%) have Alanine aminotransferase abnormal.

Could Valacyclovir cause Alanine aminotransferase abnormal?

Among these 11 people:

What is the gender of people who have Alanine aminotransferase abnormal when taking Valacyclovir? *

female: 22.22 %
male: 77.78 %

What is the age of people who have Alanine aminotransferase abnormal when taking Valacyclovir? *

What are other drugs people take besides Valacyclovir? *

What are other side effects people have besides Alanine aminotransferase abnormal? *

Thrombocytopenia (decrease of platelets in blood): 7 people, 63.64%
Gamma-Glutamyltransferase Increased: 6 people, 54.55%
Leukopenia (less number of white blood cells in blood): 4 people, 36.36%
Nausea (feeling of having an urge to vomit): 4 people, 36.36%
Aspartate Aminotransferase Abnormal: 4 people, 36.36%
Fatigue (feeling of tiredness): 3 people, 27.27%
White Blood Cell Count Decreased: 3 people, 27.27%
Acute Kidney Failure: 2 people, 18.18%
Flatulence (flatus expelled through the anus): 2 people, 18.18%
Lymphocyte Count Increased: 2 people, 18.18%

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): 2 people, 18.18%
Pain: 2 people, 18.18%
Stress And Anxiety: 1 person, 9.09%
Sarcoma (rare cancers that develop in the muscle, bone, nerves, cartilage, tendons, blood vessels and the fatty and fibrous tissues): 1 person, 9.09%
Primary Myelofibrosis (primary disorder of the bone marrow): 1 person, 9.09%
Polycythaemia Vera (blood disorder in which the bone marrow makes too many red blood cells): 1 person, 9.09%
Polycythaemia (proportion of blood volume that is occupied by red blood cells increases): 1 person, 9.09%
Neoplasm Malignant (cancer tumour): 1 person, 9.09%
Nausea (feeling of having an urge to vomit): 1 person, 9.09%
Laxative Supportive Care: 1 person, 9.09%

* Approximation only. Some reports may have incomplete information.

Do you take Valacyclovir and have Alanine aminotransferase abnormal?

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Related studies:

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

Valacyclovir (42,107 reports)

Browse all side effects of Valacyclovir:

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 Alanine aminotransferase abnormal:

Alanine aminotransferase abnormal (346 drugs)

Browse all the conditions that are associated with Alanine aminotransferase abnormal:

Alanine aminotransferase abnormal (516 conditions)

How the study uses the data?

The study uses data from the FDA. It is based on valacyclovir hydrochloride (the active ingredients of Valacyclovir) and Valacyclovir (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.