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

Summary:

Drug interactions are reported among people who take Sulfasalazine (sulfasalazine) and Pegasys (peginterferon alfa 2a). Common drug interactions include nausea among females and ascites among males.

The phase IV clinical study analyzes what interactions people have when they take Sulfasalazine and Pegasys. It is created by eHealthMe based on reports of 13 people who take the same drugs from the FDA, and is updated regularly.

What is Sulfasalazine?

Sulfasalazine has active ingredients of sulfasalazine. It is often used in rheumatoid arthritis. eHealthMe is studying from 96,787 Sulfasalazine users. Check the latest studies of Sulfasalazine.

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, 11, 2026

13 people who take Sulfasalazine and Pegasys together, and have interactions are studied.

Sulfasalazine and Pegasys drug interactions.

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

female:

Nausea (feeling of having an urge to vomit)
Amnesia (deficit in memory caused by brain damage, disease, or psychological trauma)
Anaemia (lack of blood)
Anger
Decreased appetite
Fatigue (feeling of tiredness)
Loss of consciousness
Pruritus (severe itching of the skin)
White blood cell count decreased
Abdominal distension

male:

Ascites (accumulation of fluid in the abdominal cavity)
Haemolytic anaemia (anaemia due to haemolysis)
Dehydration (dryness resulting from the removal of water)
Diarrhoea
Dizziness
Dyspepsia (indigestion)
Gingival bleeding (bleeding gums)
Haematocrit decreased
Haemoglobin decreased
Loss of consciousness

What are the common drug interactions of Sulfasalazine 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:

Amnesia (deficit in memory caused by brain damage, disease, or psychological trauma)
Anaemia (lack of blood)
Anger
Decreased appetite
Loss of consciousness
Nausea (feeling of having an urge to vomit)
White blood cell count decreased

40-49:

Asthenia (weakness)
Carbon dioxide increased
Haematocrit decreased
Haemoglobin decreased
Loss of consciousness
Red blood cell count decreased
Sinusitis (inflammation of sinus)
White blood cell count decreased

50-59:

Dyspepsia (indigestion)
Nausea (feeling of having an urge to vomit)
Angioneurotic oedema (swelling that occurs just beneath the surface of the skin or mucous membranes)
Arthralgia (joint pain)
Bradycardia (abnormally slow heart action)
Cardiac arrest
Constipation
Dacryostenosis acquired (obstruction of the nasolacrimal duct-acquired)
Diarrhoea
Dysphonia (speech disorder attributable to a disorder of phonation)

60+:

Abdominal distension
Ageusia (loss of taste functions of the tongue)
Headache (pain in head)
Platelet count decreased
Pruritus (severe itching of the skin)
Tremor (trembling or shaking movements in one or more parts of your body)
Visual impairment
Weight decreased
Anorectal discomfort
Aphagia (inability or refusal to swallow)

What are the existing conditions these people have? *

Crohn's Disease (a condition that causes inflammation of the gastrointestinal tract): 2 people, 15.38%
Indigestion: 1 person, 7.69%
Headache (pain in head): 1 person, 7.69%
Gastroesophageal Reflux Disease (a condition in which stomach contents leak backward from the stomach into the oesophagus): 1 person, 7.69%
Drowsiness: 1 person, 7.69%
Colitis (inflammation of colon): 1 person, 7.69%
Cardiac Disorder: 1 person, 7.69%

* Approximation only. Some reports may have incomplete information.

Do you take Sulfasalazine and Pegasys?

- Personalize this study to your gender, age, symptoms and drugs
- Predict drug outcomes for up to one year with AI
- Get an AI agent to monitor your drugs continuously