Vesicare and Pegasys drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Vesicare (solifenacin succinate) and Pegasys (peginterferon alfa 2a). Common drug interactions include anaemia among females and aplastic anaemia among males.

The phase IV clinical study analyzes what interactions people have when they take Vesicare and Pegasys. It is created by eHealthMe based on reports of 21 people who take the same drugs from the FDA, and is updated regularly.

What is Vesicare?

Vesicare has active ingredients of solifenacin succinate. It is often used in urge incontinence. eHealthMe is studying from 30,656 Vesicare users. Check the latest studies of Vesicare.

What is Pegasys?

Pegasys has active ingredients of peginterferon alfa 2a. It is often used in hepatitis c. eHealthMe is studying from 57,446 Pegasys users. Check the latest studies of Pegasys.

On Jul, 14, 2026

21 people who take Vesicare and Pegasys together, and have interactions are studied.

What are the common drug interactions of Vesicare and Pegasys, by gender? *:

female:

Anaemia (lack of blood)
Nausea (feeling of having an urge to vomit)
Cellulitis (infection under the skin)
Constipation
Dyspepsia (indigestion)
Fatigue (feeling of tiredness)
Gastrointestinal haemorrhage (bleeding gastrointestinal tract)
Headache (pain in head)
Hepatic cirrhosis (chronic liver disease characterized by replacement of liver tissue by fibrosis, scar tissue)
Hyperthermia (body temperature greatly above normal)

male:

Aplastic anaemia (blood disorder in which the body's bone marrow doesn't make enough new blood cells)
Pancytopenia (medical condition in which there is a reduction in the number of red and white blood cells, as well as platelets)
Depressed mood
Drug ineffective
Dry mouth
Dysgeusia (disorder of the sense of taste)
Dyspnoea (difficult or laboured respiration)
Fatigue (feeling of tiredness)
Frequent bowel movements
Haemorrhoids (a swollen vein or group of veins in the region of the anus)

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

0-1:

n/a

2-9:

n/a

10-19:

n/a

20-29:

n/a

30-39:

Aplastic anaemia (blood disorder in which the body's bone marrow doesn't make enough new blood cells)
Pancytopenia (medical condition in which there is a reduction in the number of red and white blood cells, as well as platelets)
Thrombocytopenia (decrease of platelets in blood)
Depressed mood
Suicidal ideation

40-49:

Anaemia (lack of blood)
Death
Drug ineffective
Dysgeusia (disorder of the sense of taste)
Neutropenia (an abnormally low number of neutrophils)
Sputum increased
White blood cell count increased

50-59:

Thrombocytopenia (decrease of platelets in blood)
Anaemia (lack of blood)
Aplastic anaemia (blood disorder in which the body's bone marrow doesn't make enough new blood cells)
Cellulitis (infection under the skin)
Gastrointestinal haemorrhage (bleeding gastrointestinal tract)
Hepatic cirrhosis (chronic liver disease characterized by replacement of liver tissue by fibrosis, scar tissue)
Hyperthermia (body temperature greatly above normal)
Nausea (feeling of having an urge to vomit)
Pancytopenia (medical condition in which there is a reduction in the number of red and white blood cells, as well as platelets)
Peritonitis (inflammation of the peritoneum, the thin tissue that lines the inner wall of the abdomen and covers most of the abdominal organs)

60+:

Anaemia (lack of blood)
Anorectal discomfort
Fatigue (feeling of tiredness)
Frequent bowel movements
Haemorrhoids (a swollen vein or group of veins in the region of the anus)
Influenza like illness
Nail bed inflammation (infection of nail bed)
Nasopharyngitis (inflammation of the nasopharynx)
Onychalgia (nail biting)
Pruritus (severe itching of the skin)

What are the existing conditions these people have? *

High Blood Pressure: 7 people, 33.33%
Urinary Incontinence (inability to control the flow of urine and involuntary urination): 3 people, 14.29%
Nausea (feeling of having an urge to vomit): 3 people, 14.29%
Muscle Spasms (muscle contraction): 3 people, 14.29%
Insomnia (sleeplessness): 3 people, 14.29%
Depression: 3 people, 14.29%
Neuralgia (pain in one or more nerves): 2 people, 9.52%
Narcolepsy (brain's inability to regulate sleep-wake cycles normally): 2 people, 9.52%
Cataplexy (loss of muscle tone accompanied by full conscious awareness): 2 people, 9.52%

* Approximation only. Some reports may have incomplete information.

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