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

Summary:

Drug interactions are reported among people who take Haldol (haloperidol) and Valacyclovir (valacyclovir hydrochloride). Common drug interactions include eosinophilia among females and cytokine release syndrome among males.

The phase IV clinical study analyzes what interactions people have when they take Haldol and Valacyclovir. It is created by eHealthMe based on reports of 34 people who take the same drugs from the FDA, and is updated regularly.

What is Haldol?

Haldol has active ingredients of haloperidol. It is often used in schizophrenia. eHealthMe is studying from 23,102 Haldol users. Check the latest studies of Haldol.

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, 18, 2026

34 people who take Haldol and Valacyclovir together, and have interactions are studied.

Haldol and Valacyclovir drug interactions.

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

female:

Eosinophilia (eosinophil count in the peripheral blood exceeds)
Rash maculo-papular (red area on the skin that is covered with small confluent bumps)
Renal failure (kidney dysfunction)
Atrial fibrillation (fibrillation of the muscles of the atria of the heart)
Colitis (inflammation of colon)
Cytokine release syndrome (immediate complication occurring with the use of anti-t cell antibody infusions)
Oxygen saturation decreased
Pyelonephritis (inflammation of kidney caused by bacteria)
Skin disorder (skin disease)
Vasodilatation (widening of blood vessels resulting from relaxation of smooth muscle cells within the vessel walls)

male:

Cytokine release syndrome (immediate complication occurring with the use of anti-t cell antibody infusions)
Encephalopathy (functioning of the brain is affected by some agent or condition)
Tachycardia (a heart rate that exceeds the range of 100 beats/min)
Confusional state
Blindness
Lactic acidosis (low ph in body tissues)
Paraganglion neoplasm (paraganglion tumour)
Chills (felling of cold)
Lung infection
Nausea (feeling of having an urge to vomit)

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

0-1:

n/a

2-9:

n/a

10-19:

n/a

20-29:

n/a

30-39:

Bacterial pyelonephritis (bacterial kidney infection)
Bone marrow failure
Cerebral haemorrhage (bleeding within the brain)
Coagulopathy (blood's ability to clot is impaired)
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)
Haemolytic uraemic syndrome (blood clotting disease caused by e. coli infection, birth control pills, pneumonia, medications, and more)
Leukaemia recurrent (repeat cancer of bone marrow or blood cells)
Rash
Renal failure (kidney dysfunction)
Sepsis (a severe blood infection that can lead to organ failure and death)

40-49:

Blindness
Cytokine release syndrome (immediate complication occurring with the use of anti-t cell antibody infusions)
Encephalopathy (functioning of the brain is affected by some agent or condition)
Chills (felling of cold)
Nausea (feeling of having an urge to vomit)
Night sweats (sweating in night)
Diarrhoea
Skin ulcer
Thrombocytopenia (decrease of platelets in blood)

50-59:

Lactic acidosis (low ph in body tissues)
Paraganglion neoplasm (paraganglion tumour)
Lung infection
Cytokine release syndrome (immediate complication occurring with the use of anti-t cell antibody infusions)
Oxygen saturation decreased
Chronic kidney disease
Pneumonia
Renal failure (kidney dysfunction)

60+:

Eosinophilia (eosinophil count in the peripheral blood exceeds)
Rash maculo-papular (red area on the skin that is covered with small confluent bumps)
Pyrexia (fever)
Rash
Tachycardia (a heart rate that exceeds the range of 100 beats/min)
Confusional state
Colitis (inflammation of colon)
Pyelonephritis (inflammation of kidney caused by bacteria)
Skin disorder (skin disease)
Vasodilatation (widening of blood vessels resulting from relaxation of smooth muscle cells within the vessel walls)

What are the existing conditions these people have? *

High Blood Pressure: 17 people, 50.00%
Stress And Anxiety: 14 people, 41.18%
Ards (Acute Respiratory Distress Syndrome) (sudden failure of the respiratory (breathing) system): 12 people, 35.29%
Lung Disorder (lung disease): 12 people, 35.29%
Cough: 12 people, 35.29%
Pain: 7 people, 20.59%
Gastroesophageal Reflux Disease (a condition in which stomach contents leak backward from the stomach into the oesophagus): 7 people, 20.59%
Constipation: 6 people, 17.65%
Multiple Myeloma (cancer of the plasma cells): 5 people, 14.71%
Nausea And Vomiting: 4 people, 11.76%

* Approximation only. Some reports may have incomplete information.

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