Viracept and Peginterferon drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Viracept (nelfinavir mesylate) and Peginterferon (peginterferon alfa-2a; ribavirin). Common drug interactions include haemorrhagic diathesis among females and haemorrhagic diathesis among males.

The phase IV clinical study analyzes what interactions people have when they take Viracept and Peginterferon. It is created by eHealthMe based on reports of 19 people who take the same drugs from the FDA, and is updated regularly.

What is Viracept?

Viracept has active ingredients of nelfinavir mesylate. It is often used in hiv infection. eHealthMe is studying from 6,399 Viracept users. Check the latest studies of Viracept.

What is Peginterferon?

Peginterferon has active ingredients of peginterferon alfa-2a; ribavirin. It is often used in hepatitis c. eHealthMe is studying from 13,778 Peginterferon users. Check the latest studies of Peginterferon.

eHealthMe: drug outcomes in the real world

eHealthMe runs one of the largest post-marketing drug safety studies in the world. We study millions of patients and 5,000 more each day. Our data-driven phase IV clinical trials have been referenced on 800+ peer-reviewed medical publications including The Lancet, Mayo Clinic Proceedings, and Nature. Tools to study our phase IV findings are available to the public, anonymous and free >>>.

On Aug, 17, 2026

19 people who take Viracept and Peginterferon together, and have interactions are studied.

Viracept and Peginterferon drug interactions.

What are the common drug interactions of Viracept and Peginterferon, by gender? *:

female:

Haemorrhagic diathesis (bleeding tendency)
Hyperuricaemia (level of uric acid in the blood that is abnormally high)
Liver disorder (liver diseases)
Beta 2 microglobulin urine increased
Choking (mechanical obstruction of the flow of air from the environment into the lungs)
Hepatic cirrhosis (chronic liver disease characterized by replacement of liver tissue by fibrosis, scar tissue)
Acute hepatic failure
Cytolytic hepatitis (dissolution or destruction of a liver cell)
Drug exposure during pregnancy
Drug toxicity

male:

Haemorrhagic diathesis (bleeding tendency)
Liver disorder (liver diseases)
Post thrombotic syndrome (long-term effects that can occur after venous thrombosis)
Staphylococcal infection (an infection with staphylococcus bacteria)
Subdural haematoma (blood collects between the skull and the surface of the brain)
Sudden death
Tuberculin test positive
Ulcer
Beta 2 microglobulin urine increased
Hyperuricaemia (level of uric acid in the blood that is abnormally high)

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

0-1:

n/a

2-9:

n/a

10-19:

n/a

20-29:

n/a

30-39:

Haemorrhagic diathesis (bleeding tendency)
Liver disorder (liver diseases)
Hyperuricaemia (level of uric acid in the blood that is abnormally high)
Beta 2 microglobulin urine increased
Choking (mechanical obstruction of the flow of air from the environment into the lungs)
Osteoporosis (bones weak and more likely to break)
Haematoma (collection of blood outside the blood vessels)
Haemoglobin decreased
Lymphadenopathy (disease or enlargement of lymph nodes)
Pneumocystis jiroveci pneumonia (fungal infection of the lungs)

40-49:

Beta 2 microglobulin urine increased
Mobility decreased (ability to move is reduced)
Muscle disorder (muscle disease)
Polymyositis (inflammatory muscle disease that causes weakness of the skeletal muscles)
Subdural haematoma (blood collects between the skull and the surface of the brain)
Sudden death
Haemorrhagic diathesis (bleeding tendency)
Hyperuricaemia (level of uric acid in the blood that is abnormally high)
Liver disorder (liver diseases)
Osteoporosis (bones weak and more likely to break)

50-59:

Myositis (inflammation of the muscles)

60+:

n/a

What are the existing conditions these people have? *

Liver Disorder (liver diseases): 13 people, 68.42%
Hepatitis (inflammation of the liver): 13 people, 68.42%
Hyperuricaemia (level of uric acid in the blood that is abnormally high): 10 people, 52.63%
High Blood Pressure: 8 people, 42.11%
Osteoporosis (bones weak and more likely to break): 5 people, 26.32%
Gastroesophageal Reflux Disease (a condition in which stomach contents leak backward from the stomach into the oesophagus): 3 people, 15.79%
Multiple Sclerosis (a nervous system disease that affects your brain and spinal cord. it damages the myelin sheath): 1 person, 5.26%
Hiv Test Positive: 1 person, 5.26%
Eczema (patches of skin become rough and inflamed, with itching and bleeding blisters): 1 person, 5.26%

* Approximation only. Some reports may have incomplete information.

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