Avonex and Movicol drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Avonex (interferon beta 1a) and Movicol (polyethylene glycol 3350). Common drug interactions include foetal death among females.

The phase IV clinical study analyzes what interactions people have when they take Avonex and Movicol. It is created by eHealthMe based on reports of 16 people who take the same drugs from the FDA, and is updated regularly.

What is Avonex?

Avonex has active ingredients of interferon beta 1a. It is often used in multiple sclerosis. eHealthMe is studying from 198,544 Avonex users. Check the latest studies of Avonex.

What is Movicol?

Movicol has active ingredients of polyethylene glycol 3350. It is often used in constipation. eHealthMe is studying from 14,249 Movicol users. Check the latest studies of Movicol.

On Jul, 10, 2026

16 people who take Avonex and Movicol together, and have interactions are studied.

What are the common drug interactions of Avonex and Movicol, by gender? *:

female:

Foetal death (death of foetus)
Maternal exposure during pregnancy (use of substance during pregnancy)
Muscle twitching
Pain
Sleep disorder
Affective disorder (mental disorder)
Dysphonia (speech disorder attributable to a disorder of phonation)
Lower respiratory tract infection viral
Nasopharyngitis (inflammation of the nasopharynx)
Secretion discharge

male:

n/a

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

0-1:

n/a

2-9:

n/a

10-19:

n/a

20-29:

n/a

30-39:

Foetal death (death of foetus)
Maternal exposure during pregnancy (use of substance during pregnancy)
Cerebrovascular accident (sudden death of some brain cells due to lack of oxygen when the blood flow to the brain is impaired by blockage or rupture)
Transient ischaemic attack (a transient episode of neurologic dysfunction caused by ischemia (loss of blood flow))
Fall
Ligament sprain (ligament stretched)

40-49:

Muscle twitching
Pain
Sleep disorder
Affective disorder (mental disorder)
Dysphonia (speech disorder attributable to a disorder of phonation)
Lower respiratory tract infection viral
Nasopharyngitis (inflammation of the nasopharynx)
Secretion discharge
Sinusitis (inflammation of sinus)
Tachyphrenia (abnormally rapid mental activity)

50-59:

n/a

60+:

Breast cancer
Secondary progressive multiple sclerosis (a stage of ms which comes after relapsing remitting ms in many cases)

What are the existing conditions these people have? *

Sleep Disorder: 5 people, 31.25%
Rickets (softening of bones): 4 people, 25.00%
Pain: 4 people, 25.00%
Muscle Spasms (muscle contraction): 4 people, 25.00%
Incontinence (lack of moderation or self-control): 4 people, 25.00%
Depression: 3 people, 18.75%
Muscle Spasticity (tight or stiff muscles and an inability to control those muscles): 2 people, 12.50%
Gastroesophageal Reflux Disease (a condition in which stomach contents leak backward from the stomach into the oesophagus): 1 person, 6.25%
Delirium (wild excitement): 1 person, 6.25%
Chronic Lymphocytic Leukaemia (cancer in which the bone marrow makes too many lymphocytes (a type of white blood cell)): 1 person, 6.25%

* Approximation only. Some reports may have incomplete information.

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