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

Summary:

Drug interactions are reported among people who take Zarxio (filgrastim-sndz) and Valacyclovir hydrochloride (valacyclovir hydrochloride). Common drug interactions include drug ineffective among females and agranulocytosis among males.

The phase IV clinical study analyzes what interactions people have when they take Zarxio and Valacyclovir hydrochloride. It is created by eHealthMe based on reports of 17 people who take the same drugs from the FDA, and is updated regularly.

What is Zarxio?

Zarxio has active ingredients of filgrastim-sndz. eHealthMe is studying from 3,250 Zarxio users. Check the latest studies of Zarxio.

What is Valacyclovir hydrochloride?

Valacyclovir hydrochloride has active ingredients of valacyclovir hydrochloride. It is often used in herpes zoster. eHealthMe is studying from 12,929 Valacyclovir hydrochloride users. Check the latest studies of Valacyclovir hydrochloride.

On Jul, 07, 2026

17 people who take Zarxio and Valacyclovir hydrochloride together, and have interactions are studied.

Zarxio and Valacyclovir hydrochloride drug interactions.

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

female:

Drug ineffective
Memory impairment
Muscular weakness (muscle weakness)
Neuralgia (pain in one or more nerves)
Paraesthesia (sensation of tingling, tickling, prickling, pricking, or burning of a person's skin with no apparent long-term physical effect)
Peripheral swelling
Post lumbar puncture syndrome
Pruritus (severe itching of the skin)
Rash
Cellulitis (infection under the skin)

male:

Agranulocytosis (a deficiency of granulocytes in the blood, causing increased vulnerability to infection)
Anaemia (lack of blood)
Haemoglobin decreased
Hypokalaemia (low potassium)
Hypomagnesaemia (electrolyte disturbance in which there is an abnormally low level of magnesium in the blood)
Infection
Lymphocyte count decreased
Lymphocyte percentage decreased
Monoclonal immunoglobulin present
Monocyte percentage increased

What are the common drug interactions of Zarxio and Valacyclovir Hydrochloride, 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:

n/a

50-59:

Drug ineffective
Memory impairment
Muscular weakness (muscle weakness)
Neuralgia (pain in one or more nerves)
Paraesthesia (sensation of tingling, tickling, prickling, pricking, or burning of a person's skin with no apparent long-term physical effect)
Peripheral swelling
Post lumbar puncture syndrome
Pruritus (severe itching of the skin)
Rash
Cellulitis (infection under the skin)

60+:

Agranulocytosis (a deficiency of granulocytes in the blood, causing increased vulnerability to infection)
Anaemia (lack of blood)
Gastrointestinal haemorrhage (bleeding gastrointestinal tract)
Granulocyte count increased
Haematocrit decreased
Haemoglobin decreased
Hypokalaemia (low potassium)
Hypomagnesaemia (electrolyte disturbance in which there is an abnormally low level of magnesium in the blood)
Infection
Lymphocyte count decreased

What are the existing conditions these people have? *

Multiple Myeloma (cancer of the plasma cells): 9 people, 52.94%
Acute Lymphocytic Leukemia (All) (cancer of the white blood cells characterized by excess lymphoblasts): 3 people, 17.65%
Neoplasm Malignant (cancer tumour): 1 person, 5.88%
Deep Venous Thrombosis (blood clot in a major vein that usually develops in the legs and/or pelvis): 1 person, 5.88%
Acute Lymphocytic Leukaemia (In Remission): 1 person, 5.88%

* Approximation only. Some reports may have incomplete information.

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