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Valacyclovir and Femring drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Valacyclovir (valacyclovir hydrochloride) and Femring (estradiol acetate). Common drug interactions include gallbladder disorder among females.

The phase IV clinical study analyzes what interactions people have when they take Valacyclovir and Femring. It is created by eHealthMe based on reports of 23 people who take the same drugs 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 Femring?

Femring has active ingredients of estradiol acetate. It is often used in menopause. eHealthMe is studying from 721 Femring users. Check the latest studies of Femring.

On Jul, 25, 2026

23 people who take Valacyclovir and Femring together, and have interactions are studied.

Valacyclovir and Femring drug interactions.

What are the common drug interactions of Valacyclovir and Femring, by gender? *:

female:

  1. Gallbladder disorder
  2. Herpes virus infection
  3. Multiple allergies (allergy to multiple agents)
  4. Nasopharyngitis (inflammation of the nasopharynx)
  5. Drug ineffective
  6. Urinary tract infection
  7. Pain
  8. Fatigue (feeling of tiredness)
  9. Acne (skin problems that cause pimples)
  10. Breast tenderness

male:

n/a

What are the common drug interactions of Valacyclovir and Femring, 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. Chronic kidney disease

50-59:

  1. Drug ineffective

60+:

  1. Herpes virus infection
  2. Blood pressure decreased
  3. Swelling face
  4. Urinary tract infection
  5. Vomiting
  6. Pain
  7. Drug ineffective
  8. Fatigue (feeling of tiredness)
  9. Acne (skin problems that cause pimples)
  10. Breast tenderness

What are the existing conditions these people have? *

  1. Immunodeficiency Common Variable: 12 people, 52.17%
  2. Narcolepsy (brain's inability to regulate sleep-wake cycles normally): 6 people, 26.09%
  3. Menopausal Symptoms: 4 people, 17.39%
  4. Herpes Virus Infection: 3 people, 13.04%
  5. Migraine (headache): 3 people, 13.04%
  6. Acne (skin problems that cause pimples): 3 people, 13.04%
  7. Skin Disorder (skin disease): 2 people, 8.70%
  8. Endometriosis (appearance of endometrial tissue outside the uterus and causing pelvic pain): 2 people, 8.70%
  9. High Blood Pressure: 2 people, 8.70%
  10. High Blood Cholesterol: 2 people, 8.70%

* Approximation only. Some reports may have incomplete information.

Do you take Valacyclovir and Femring?

- 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:

Browse all drug interactions of Valacyclovir and Femring:

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 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 side effects of Femring:

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 Valacyclovir 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 Femring 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 valacyclovir hydrochloride and estradiol acetate (the active ingredients of Valacyclovir and Femring, respectively), and Valacyclovir and Femring (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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