Valacyclovir and Premature labor - a phase IV clinical study of FDA data

Summary:

Premature labor is reported as a side effect among people who take Valacyclovir (valacyclovir hydrochloride), especially for people who are 20-29 old, have been taking the drug for 6 - 12 months also take Accutane, and have Herpes virus infection.

The phase IV clinical study analyzes which people have Premature labor 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 Premature labor?

Premature labor is found to be associated with 476 drugs and 727 conditions by eHealthMe. Check the latest studies of Premature labor.

On Jul, 16, 2026

41,259 people reported to have side effects when taking Valacyclovir.
Among them, 14 people (0.03%) have Premature labor.

Could Valacyclovir cause Premature labor?

Among these 14 people:

How long have people been on Valacyclovir when they have Premature labor? *

What is the age of people who have Premature labor when taking Valacyclovir? *

What are other drugs people take besides Valacyclovir? *

Accutane: 3 people, 21.43%
Makena: 2 people, 14.29%
Azathioprine: 2 people, 14.29%
Cetirizine Hydrochloride: 2 people, 14.29%
Emtricitabine: 2 people, 14.29%
Prezista: 2 people, 14.29%
Stelara: 2 people, 14.29%
Methylprednisolone: 1 person, 7.14%
Mupirocin: 1 person, 7.14%
Isoniazid: 1 person, 7.14%

What are other side effects people have besides Premature labor? *

Urinary Tract Infection: 4 people, 28.57%
Foetal Growth Restriction (poor growth of a baby while in the mother's womb during pregnancy): 4 people, 28.57%
Anaemia (lack of blood): 3 people, 21.43%
Drug Exposure During Pregnancy: 3 people, 21.43%
Normal Newborn: 2 people, 14.29%
Gestational Hypertension (elevated blood pressure during pregnancy): 2 people, 14.29%
Sinusitis (inflammation of sinus): 2 people, 14.29%
Nausea (feeling of having an urge to vomit): 2 people, 14.29%
Nausea And Vomiting: 2 people, 14.29%
Gestational Diabetes (diabetes in pregnancy): 1 person, 7.14%

What are the existing conditions these people have? *

Herpes Virus Infection: 5 people, 35.71%
Crohn's Disease (a condition that causes inflammation of the gastrointestinal tract): 4 people, 28.57%
Vitamin B12 Deficiency: 2 people, 14.29%
Seasonal Allergy (allergic condition due to certain season): 2 people, 14.29%
Psoriatic Arthropathy (inflammation of the skin and joints with kin condition which typically causes patches (plaques) of red, scaly skin to develop): 2 people, 14.29%
Psoriasis (immune-mediated disease that affects the skin): 2 people, 14.29%
Oral Herpes (viral infection of mouth): 2 people, 14.29%
Hiv Infection: 2 people, 14.29%
Breast Infection: 2 people, 14.29%
Spondyloarthropathy (any joint disease of the vertebral column): 1 person, 7.14%

* Approximation only. Some reports may have incomplete information.

Do you take Valacyclovir and have Premature labor?

- Check whether Premature labor 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 Valacyclovir:

Valacyclovir (42,107 reports)

Premature labor treatments and more:

Premature labor (9,509 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 Premature labor:

Premature labor (476 drugs)

Browse all the conditions that are associated with Premature labor:

Premature labor (727 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.