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

Summary:

Drug interactions are reported among people who take Savella (milnacipran hydrochloride) and Valacyclovir (valacyclovir hydrochloride). Common drug interactions include drug ineffective among females and anxiety among males.

The phase IV clinical study analyzes what interactions people have when they take Savella and Valacyclovir. It is created by eHealthMe based on reports of 82 people who take the same drugs from the FDA, and is updated regularly.

What is Savella?

Savella has active ingredients of milnacipran hydrochloride. It is often used in fibromyalgia. eHealthMe is studying from 7,529 Savella users. Check the latest studies of Savella.

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.



On Jul, 09, 2026

82 people who take Savella and Valacyclovir together, and have interactions are studied.

Savella and Valacyclovir drug interactions.

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

female:

  1. Drug ineffective
  2. Upper-airway cough syndrome
  3. Dehydration (dryness resulting from the removal of water)
  4. Hepatitis c
  5. Hip fracture
  6. Muscular weakness (muscle weakness)
  7. Pancreatitis (inflammation of pancreas)
  8. Arthralgia (joint pain)
  9. Osteoporosis (bones weak and more likely to break)
  10. Pain in extremity

male:

  1. Anxiety
  2. Erectile dysfunction
  3. Sleep disorder
  4. Testicular pain (pain in testes)
  5. Pneumonia
  6. Thrombosis (formation of a blood clot inside a blood vessel)

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

0-1:

n/a

2-9:

n/a

10-19:

n/a

20-29:

  1. Nasal disorder (diseases of nose)
  2. Nightmare (unpleasant dream)
  3. Rhinitis allergic (inflammation of the nasal airways due to allergy)
  4. Sinusitis (inflammation of sinus)
  5. Sleep terror (felling of terror in sleep)
  6. Substance abuse
  7. Syncope (loss of consciousness with an inability to maintain postural tone)
  8. Urticaria (rash of round, red welts on the skin that itch intensely)
  9. Vomiting
  10. Abnormal behaviour

30-39:

  1. Cough
  2. Fatigue (feeling of tiredness)
  3. Upper-airway cough syndrome
  4. Dyspepsia (indigestion)
  5. Psoriasis (immune-mediated disease that affects the skin)

40-49:

  1. Anhedonia (inability to experience pleasure from activities usually found enjoyable)
  2. Arthralgia (joint pain)
  3. Asthenia (weakness)
  4. Dental caries
  5. Emotional distress
  6. Headache (pain in head)
  7. Hypophosphataemia (electrolyte disturbance in which there is an abnormally low level of phosphate in the blood)
  8. Myalgia (muscle pain)
  9. Pain in extremity
  10. Paraesthesia (sensation of tingling, tickling, prickling, pricking, or burning of a person's skin with no apparent long-term physical effect)

50-59:

  1. Drug ineffective
  2. Fall
  3. Candidiasis (candidiasis or thrush is a fungal infection)
  4. Onychomycosis (fungal infection of the nail)
  5. Urinary tract infection
  6. Vitamin d decreased
  7. Stomatitis (inflammation of mucous membrane of mouth)
  8. Back disorder
  9. Bladder prolapse (bulging of one or more of the pelvic organs into the vagina)
  10. Blood pressure decreased

60+:

  1. Anxiety
  2. Dizziness
  3. Vomiting
  4. Balance disorder
  5. Injection site irritation
  6. Injection site pruritus (severe itching at injection site)
  7. Injection site swelling
  8. Sepsis (a severe blood infection that can lead to organ failure and death)
  9. Erectile dysfunction
  10. Middle insomnia (difficulty returning to sleep after awakening either in the middle of the night)

What are the existing conditions these people have? *

  1. Narcolepsy (brain's inability to regulate sleep-wake cycles normally): 30 people, 36.59%
  2. Pain: 11 people, 13.41%
  3. High Blood Pressure: 10 people, 12.20%
  4. Depression: 9 people, 10.98%
  5. Multiple Sclerosis (a nervous system disease that affects your brain and spinal cord. it damages the myelin sheath): 9 people, 10.98%
  6. Stress And Anxiety: 8 people, 9.76%
  7. Migraine (headache): 8 people, 9.76%
  8. Neuralgia (pain in one or more nerves): 8 people, 9.76%
  9. Nausea (feeling of having an urge to vomit): 8 people, 9.76%
  10. Arthritis (form of joint disorder that involves inflammation of one or more joints): 7 people, 8.54%

* Approximation only. Some reports may have incomplete information.

Do you take Savella and Valacyclovir?

- 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 Savella and 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

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 Savella:

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 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 interactions between Savella 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 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

How the study uses the data?

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