Fetzima and Hydroxyzine drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Fetzima (levomilnacipran hydrochloride) and Hydroxyzine (hydroxyzine hydrochloride). Common drug interactions include joint stiffness among females and pain among males.

The phase IV clinical study analyzes what interactions people have when they take Fetzima and Hydroxyzine. It is created by eHealthMe based on reports of 62 people who take the same drugs from the FDA, and is updated regularly.

What is Fetzima?

Fetzima has active ingredients of levomilnacipran hydrochloride. It is often used in depression. eHealthMe is studying from 2,077 Fetzima users. Check the latest studies of Fetzima.

What is Hydroxyzine?

Hydroxyzine has active ingredients of hydroxyzine hydrochloride. It is often used in stress and anxiety. eHealthMe is studying from 54,069 Hydroxyzine users. Check the latest studies of Hydroxyzine.



On Jul, 17, 2026

62 people who take Fetzima and Hydroxyzine together, and have interactions are studied.

Fetzima and Hydroxyzine drug interactions.

What are the common drug interactions of Fetzima and Hydroxyzine, by gender? *:

female:

  1. Joint stiffness
  2. Paranoia (psychotic disorder characterized by delusions of persecution with or without grandeur)
  3. Rash pruritic (redness with itching)
  4. Cystitis interstitial (unknown cause characterized by bladder pain)
  5. Ear disorder
  6. Hypertension (high blood pressure)
  7. Muscle spasms (muscle contraction)
  8. Paraesthesia (sensation of tingling, tickling, prickling, pricking, or burning of a person's skin with no apparent long-term physical effect)
  9. Seizure (abnormal excessive or synchronous neuronal activity in the brain)
  10. Sjogren's syndrome (a disease that causes dryness in the mouth and eyes)

male:

  1. Pain
  2. Fatigue (feeling of tiredness)
  3. Psychomotor hyperactivity (feelings of extreme restlessness)
  4. Somnolence (a state of near-sleep, a strong desire for sleep)
  5. Therapeutic response unexpected
  6. Tooth loss
  7. Dehydration (dryness resulting from the removal of water)
  8. Malaise (a feeling of general discomfort or uneasiness)
  9. Anhedonia (inability to experience pleasure from activities usually found enjoyable)
  10. Bone density decreased

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

0-1:

n/a

2-9:

n/a

10-19:

n/a

20-29:

  1. Dehydration (dryness resulting from the removal of water)
  2. Abdominal discomfort
  3. Attention deficit/hyperactivity disorder
  4. Brain injury
  5. Cartilage injury
  6. Depressed mood
  7. Dyskinesia (abnormality or impairment of voluntary movement)
  8. Emotional distress
  9. Energy increased
  10. Erectile dysfunction

30-39:

  1. Dry skin
  2. Rash pruritic (redness with itching)

40-49:

  1. Blood cholesterol increased
  2. Cardiac failure congestive
  3. Cardiomyopathy (weakening of the heart muscle)
  4. Death
  5. Injection site erythema (redness at injection site)
  6. Injection site swelling
  7. Injection site urticaria (rash of round, red welts on the skin at injection site)
  8. Injection site warmth
  9. Joint stiffness
  10. Muscular weakness (muscle weakness)

50-59:

  1. Headache (pain in head)
  2. Nasopharyngitis (inflammation of the nasopharynx)
  3. Neuralgia (pain in one or more nerves)
  4. Therapeutic response unexpected
  5. Vertebral foraminal stenosis (narrowing of the intervertebral foramen)
  6. Blood iron decreased
  7. Paranoia (psychotic disorder characterized by delusions of persecution with or without grandeur)
  8. Vomiting
  9. Drug hypersensitivity
  10. Fatigue (feeling of tiredness)

60+:

  1. Dizziness
  2. Tardive dyskinesia (a disorder that involves involuntary movements)
  3. Vision blurred
  4. Macular degeneration (painless eye condition that leads to the gradual loss of central vision)
  5. Maculopathy (a condition or disease of the macula, the small spot in the retina where vision is keenest)
  6. Retinal dystrophy (progressive weakness and wasting of the retina)

What are the existing conditions these people have? *

  1. Narcolepsy (brain's inability to regulate sleep-wake cycles normally): 27 people, 43.55%
  2. Cataplexy (loss of muscle tone accompanied by full conscious awareness): 19 people, 30.65%
  3. Insomnia (sleeplessness): 8 people, 12.90%
  4. Pain: 7 people, 11.29%
  5. Itching: 6 people, 9.68%
  6. Gastroesophageal Reflux Disease (a condition in which stomach contents leak backward from the stomach into the oesophagus): 6 people, 9.68%
  7. Drowsiness: 6 people, 9.68%
  8. Major Depression (a mood state that goes well beyond temporarily feeling sad or blue. it is a serious medical illness that affects one's thoughts, feelings): 4 people, 6.45%
  9. Fibromyalgia (a long-term condition which causes pain all over the body): 4 people, 6.45%

* Approximation only. Some reports may have incomplete information.

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Related studies:

Effectiveness of, side effects of, and alternative drugs to the 2 drugs:

Browse all drug interactions of Fetzima and Hydroxyzine:

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 Fetzima:

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 Hydroxyzine:

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 Fetzima 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 Hydroxyzine 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

Related publications that referenced our studies


How the study uses the data?

The study uses data from the FDA. It is based on levomilnacipran hydrochloride and hydroxyzine hydrochloride (the active ingredients of Fetzima and Hydroxyzine, respectively), and Fetzima and Hydroxyzine (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.

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