Repatha and Valtrex drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Repatha (evolocumab) and Valtrex (valacyclovir hydrochloride). Common drug interactions include alopecia among females and bronchitis among males.

The phase IV clinical study analyzes what interactions people have when they take Repatha and Valtrex. It is created by eHealthMe based on reports of 48 people who take the same drugs from the FDA, and is updated regularly.

What is Repatha?

Repatha has active ingredients of evolocumab. It is often used in high blood cholesterol. eHealthMe is studying from 156,256 Repatha users. Check the latest studies of Repatha.

What is Valtrex?

Valtrex has active ingredients of valacyclovir hydrochloride. It is often used in genital herpes. eHealthMe is studying from 39,999 Valtrex users. Check the latest studies of Valtrex.



On Jul, 16, 2026

48 people who take Repatha and Valtrex together, and have interactions are studied.

Repatha and Valtrex drug interactions.

What are the common drug interactions of Repatha and Valtrex, by gender? *:

female:

  1. Alopecia (absence of hair from areas of the body)
  2. Asthenia (weakness)
  3. Attention deficit hyperactivity disorder (a chronic condition including attention difficulty, hyperactivity, and impulsiveness)
  4. Bone pain
  5. Breast pain
  6. Death
  7. Decreased activity
  8. Dermatitis atopic (inflammatory, chronically relapsing, non-contagious and pruritic skin disorder)
  9. Distractibility (inability to sustain one's attention)
  10. Drug intolerance (drug sensitivity)

male:

  1. Bronchitis (inflammation of the mucous membrane in the bronchial tubes)
  2. Infusion site haemorrhage (bleeding from infusion site)
  3. Coronary arterial stent insertion
  4. Tooth abscess (pus formation in tooth)
  5. Presyncope
  6. Viral infection
  7. Angina unstable (chest pain due to ischemia of the heart muscle- unstable)
  8. Arthralgia (joint pain)
  9. Arthropathy
  10. Asthenia (weakness)

What are the common drug interactions of Repatha and Valtrex, by age (0-1 to 60+)? *:

0-1:

n/a

2-9:

n/a

10-19:

n/a

20-29:

n/a

30-39:

  1. Anxiety
  2. Disturbance in attention
  3. Drug ineffective
  4. Feeling jittery
  5. Initial insomnia (feeling of inadequate or poor-quality sleep)
  6. Nightmare (unpleasant dream)
  7. Paradoxical drug reaction
  8. Sleep disorder

40-49:

n/a

50-59:

  1. Speech disorder
  2. Tremor (trembling or shaking movements in one or more parts of your body)
  3. Rhabdomyolysis (a condition in which damaged skeletal muscle tissue breaks down)
  4. Dizziness
  5. Back pain
  6. Fatigue (feeling of tiredness)
  7. Influenza like illness
  8. Pain
  9. Sleep disorder due to general medical condition, insomnia type (a conditions that prevent a person from getting restful sleep due to mental condition of not getting sleep)
  10. Upper respiratory tract infection

60+:

  1. Bronchitis (inflammation of the mucous membrane in the bronchial tubes)
  2. Infusion site haemorrhage (bleeding from infusion site)
  3. Hypertension (high blood pressure)
  4. Blood glucose increased
  5. Blood potassium decreased
  6. Chest pain
  7. Dizziness
  8. Eye infection
  9. Glycosylated haemoglobin increased
  10. Infusion site extravasation (flow of (blood or lymph) from infusion site)

What are the existing conditions these people have? *

  1. Immunodeficiency Common Variable: 7 people, 14.58%
  2. Hyperlipidaemia (presence of excess lipids in the blood): 4 people, 8.33%
  3. Muscle Spasms (muscle contraction): 3 people, 6.25%
  4. Multiple Myeloma (cancer of the plasma cells): 3 people, 6.25%
  5. High Blood Pressure: 3 people, 6.25%

* Approximation only. Some reports may have incomplete information.

Do you take Repatha and Valtrex?

- 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 Repatha and Valtrex:

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 Repatha:

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 Valtrex:

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 Repatha 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 Valtrex 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 evolocumab and valacyclovir hydrochloride (the active ingredients of Repatha and Valtrex, respectively), and Repatha and Valtrex (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.



Recent studies on eHealthMe: