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

Summary:

Drug interactions are reported among people who take Flomax (tamsulosin hydrochloride) and Pegasys (peginterferon alfa 2a). Common drug interactions include diplopia among females and fatigue among males.

The phase IV clinical study analyzes what interactions people have when they take Flomax and Pegasys. It is created by eHealthMe based on reports of 72 people who take the same drugs from the FDA, and is updated regularly.

What is Flomax?

Flomax has active ingredients of tamsulosin hydrochloride. It is often used in enlarged prostate. eHealthMe is studying from 52,865 Flomax users. Check the latest studies of Flomax.

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, 16, 2026

72 people who take Flomax and Pegasys together, and have interactions are studied.

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

female:

Diplopia (double vision)
Dizziness
Nystagmus (a condition of involuntary eye movement)
Inner ear disorder
Vertigo
Ill-defined disorder
Viiith nerve injury
Viiith nerve lesion

male:

Fatigue (feeling of tiredness)
Weight decreased
Anorectal discomfort
Cachexia (loss of weight)
Cardiomegaly (increased size of heart than normal)
Muscle atrophy (a decrease in the mass of the muscle)
Nephropathy (damage to or disease of a kidney)
Pulmonary hypertension (increase in blood pressure in the lung artery)
Diarrhoea
Pruritus (severe itching of the skin)

What are the common drug interactions of Flomax 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:

n/a

40-49:

Anhedonia (inability to experience pleasure from activities usually found enjoyable)
Anxiety
Blood urine present
Chronic kidney disease
Chronic obstructive airways disease
Decreased activity
Depression
Disease recurrence
Emotional distress
Fatigue (feeling of tiredness)

50-59:

Arthritis (form of joint disorder that involves inflammation of one or more joints)
Asthenia (weakness)
Back pain
Blood pressure increased
Cardiac murmur (an heart sound in valve abnormality)
Chills (felling of cold)
Depressed mood
Dry mouth
Dry skin
Dyspnoea exertional (breathlessness or shortness of breath)

60+:

Weight decreased
Hydronephrosis (water inside the kidney)
Anorectal discomfort
Arthralgia (joint pain)
Cachexia (loss of weight)
Cardiomegaly (increased size of heart than normal)
Dehydration (dryness resulting from the removal of water)
Depression
Dry mouth
Fatigue (feeling of tiredness)

What are the existing conditions these people have? *

High Blood Pressure: 9 people, 12.50%
Pain: 8 people, 11.11%
Stress And Anxiety: 4 people, 5.56%
Neoplasm Malignant (cancer tumour): 4 people, 5.56%
Muscle Aches (muscle pain): 4 people, 5.56%
Headache (pain in head): 4 people, 5.56%

* Approximation only. Some reports may have incomplete information.

Do you take Flomax 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