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

Summary:

Drug interactions are reported among people who take Plegridy (peginterferon beta-1a) and Flomax (tamsulosin hydrochloride). Common drug interactions include influenza like illness among females and hyperhidrosis among males.

The phase IV clinical study analyzes what interactions people have when they take Plegridy and Flomax. 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 Plegridy?

Plegridy has active ingredients of peginterferon beta-1a. eHealthMe is studying from 14,764 Plegridy users. Check the latest studies of Plegridy.

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.

On Jul, 19, 2026

19 people who take Plegridy and Flomax together, and have interactions are studied.

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

female:

Influenza like illness
Injection site erythema (redness at injection site)
Fatigue (feeling of tiredness)
Mental status changes (general changes in brain function, such as confusion, amnesia (memory loss), loss of alertness, loss of orientation)
Seizure (abnormal excessive or synchronous neuronal activity in the brain)
Hypoaesthesia (reduced sense of touch or sensation)
Multiple sclerosis (a nervous system disease that affects your brain and spinal cord. it damages the myelin sheath)
Multiple sclerosis relapse (reoccurrence of a nervous system disease that affects your brain and spinal cord. it damages the myelin sheath)
Injection site pruritus (severe itching at injection site)
Adverse event

male:

Hyperhidrosis (abnormally increased sweating)
Muscle fatigue (a condition in which muscles cannot exert their normal force)
Gait disturbance
General symptom
Mobility decreased (ability to move is reduced)
Musculoskeletal disorder (disease of the body's muscles, joints, tendons, ligaments and nerves)
Bladder disorder
Dysstasia (difficulty in standing)
Fall
Pyrexia (fever)

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

0-1:

n/a

2-9:

n/a

10-19:

n/a

20-29:

Hypoaesthesia (reduced sense of touch or sensation)
Influenza like illness
Multiple sclerosis (a nervous system disease that affects your brain and spinal cord. it damages the myelin sheath)
Multiple sclerosis relapse (reoccurrence of a nervous system disease that affects your brain and spinal cord. it damages the myelin sheath)

30-39:

Influenza like illness
Injection site erythema (redness at injection site)
Injection site pruritus (severe itching at injection site)

40-49:

Asthenia (weakness)
Bladder disorder
Dysstasia (difficulty in standing)
Fall
Pyrexia (fever)
Urosepsis (secondary infection that occurs when a urinary tract infection spreads to the bloodstream)
Deep vein thrombosis (blood clot in a major vein that usually develops in the legs and/or pelvis)
Thrombosis (formation of a blood clot inside a blood vessel)

50-59:

Pneumonia
Urinary tract infection

60+:

Hyperhidrosis (abnormally increased sweating)
Muscle fatigue (a condition in which muscles cannot exert their normal force)
Musculoskeletal disorder (disease of the body's muscles, joints, tendons, ligaments and nerves)
Pain
Asthenia (weakness)
Central nervous system lesion (an abnormality in tissue of brain or spinal cord)
Constipation
Gastric ulcer perforation (stomach hole due to ulcer)
Hiccups (an involuntary spasm of the diaphragm and respiratory organs, with a sudden closure of the glottis and a sound like a cough)
Incontinence (lack of moderation or self-control)

What are the existing conditions these people have? *

Multiple Sclerosis (a nervous system disease that affects your brain and spinal cord. it damages the myelin sheath): 17 people, 89.47%
Gait Disturbance: 4 people, 21.05%
Movement Disorder (neurological syndromes where they may be excess of movement or a paucity of movement that is not connected to weakness): 2 people, 10.53%
Weakness: 1 person, 5.26%
Urine Flow Decreased: 1 person, 5.26%
Urinary Incontinence (inability to control the flow of urine and involuntary urination): 1 person, 5.26%
Swelling: 1 person, 5.26%
Sinus Disorder (disease of sinus): 1 person, 5.26%
Muscle Spasticity (tight or stiff muscles and an inability to control those muscles): 1 person, 5.26%
Insomnia (sleeplessness): 1 person, 5.26%

* Approximation only. Some reports may have incomplete information.

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