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

Summary:

Drug interactions are reported among people who take Hydroxyzine (hydroxyzine hydrochloride) and Prevymis (letermovir). Common drug interactions include herpes zoster among females and febrile neutropenia among males.

The phase IV clinical study analyzes what interactions people have when they take Hydroxyzine and Prevymis. It is created by eHealthMe based on reports of 14 people who take the same drugs from the FDA, and is updated regularly.

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.

What is Prevymis?

Prevymis has active ingredients of letermovir. eHealthMe is studying from 1,328 Prevymis users. Check the latest studies of Prevymis.

On Jul, 15, 2026

14 people who take Hydroxyzine and Prevymis together, and have interactions are studied.

Hydroxyzine and Prevymis drug interactions.

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

female:

Herpes zoster
Pericardial effusion (fluid around the heart)

male:

Febrile neutropenia (fever with reduced white blood cells)
Platelet count decreased
Immune system disorder
Neutrophil count decreased (less than normal number of neutrophil a type of blood cell)
Post inflammatory pigmentation change
Superinfection fungal
Telangiectasia (small dilated blood vessels near the surface of the skin)
Pneumonia
Engraftment syndrome (inflammatory condition during neutrophil recovery after hematopoietic stem cell transplantation)
Venoocclusive liver disease (small veins in the liver are obstructed)

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

0-1:

n/a

2-9:

n/a

10-19:

Venoocclusive liver disease (small veins in the liver are obstructed)
Coma hepatic (accumulation in the bloodstream of toxic substances that are normally removed by the liver leads coma)
Graft versus host disease (the donated bone marrow or stem cells view the recipient's body as foreign, and the donated cells/bone marrow attack the body)
Hepatic encephalopathy (spectrum of neuropsychiatric abnormalities in patients with liver failure)
Hepatic failure (liver failure)
Immune system disorder
Pericardial effusion (fluid around the heart)
Engraftment syndrome (inflammatory condition during neutrophil recovery after hematopoietic stem cell transplantation)
Platelet count decreased

20-29:

n/a

30-39:

n/a

40-49:

Febrile neutropenia (fever with reduced white blood cells)
Pneumonia
Graft versus host disease in skin (the donated bone marrow or stem cells view the recipient's body as foreign, and the donated cells/bone marrow attack the skin)
Post inflammatory pigmentation change
Superinfection fungal
Telangiectasia (small dilated blood vessels near the surface of the skin)

50-59:

Neutrophil count decreased (less than normal number of neutrophil a type of blood cell)
Platelet count decreased

60+:

n/a

What are the existing conditions these people have? *

Stomatitis (inflammation of mucous membrane of mouth): 8 people, 57.14%
Nausea (feeling of having an urge to vomit): 6 people, 42.86%
Oedema (fluid collection in tissue): 6 people, 42.86%
Thrombocytopenia (decrease of platelets in blood): 6 people, 42.86%
Hypokalemia (low potassium): 6 people, 42.86%
Psoriasis (immune-mediated disease that affects the skin): 6 people, 42.86%
Irritable Bowel Syndrome: 6 people, 42.86%
Obsessive-Compulsive Disorder (an anxiety disorder characterized by intrusive thoughts that produce uneasiness, apprehension, fear, or worry;): 6 people, 42.86%
Hypomagnesaemia (electrolyte disturbance in which there is an abnormally low level of magnesium in the blood): 5 people, 35.71%
Febrile Neutropenia (fever with reduced white blood cells): 5 people, 35.71%

* Approximation only. Some reports may have incomplete information.

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