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

Summary:

Drug interactions are reported among people who take Avonex (interferon beta 1a) and Mestinon (pyridostigmine bromide). Common drug interactions include joint stiffness among females and drug ineffective among males.

The phase IV clinical study analyzes what interactions people have when they take Avonex and Mestinon. It is created by eHealthMe based on reports of 21 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 Mestinon?

Mestinon has active ingredients of pyridostigmine bromide. It is often used in myasthenia gravis. eHealthMe is studying from 5,948 Mestinon users. Check the latest studies of Mestinon.

On Jul, 14, 2026

21 people who take Avonex and Mestinon together, and have interactions are studied.

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

female:

Joint stiffness
Influenza like illness
Hip arthroplasty
Pain
Dyspnoea (difficult or laboured respiration)
Ageusia (loss of taste functions of the tongue)
Asthenia (weakness)
Blood glucose increased
Bursitis (inflammation of a bursa, typically one in the knee, elbow, or shoulder)
Cartilage injury

male:

Drug ineffective
Feeling cold
Hyperhidrosis (abnormally increased sweating)
Insomnia (sleeplessness)
Pneumonia
Renal failure (kidney dysfunction)
Septic shock (shock due to blood infection)
Swelling
Tremor (trembling or shaking movements in one or more parts of your body)

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

0-1:

n/a

2-9:

n/a

10-19:

n/a

20-29:

n/a

30-39:

Blood glucose increased
Dyspnoea (difficult or laboured respiration)
Influenza like illness
Asthenia (weakness)
Cardiac failure
Cold sweat
Dizziness
Drug ineffective
Feeling cold
Hyperhidrosis (abnormally increased sweating)

40-49:

Lipoma (a growth of fatty tissue that slowly develops just under your skin)
Monocytosis (an increase in the number of monocytes circulating in the blood)
Thrombocytopenia (decrease of platelets in blood)

50-59:

Groin pain
Joint stiffness
Hip arthroplasty
Bursitis (inflammation of a bursa, typically one in the knee, elbow, or shoulder)
Chills (felling of cold)
Influenza like illness
Pain
Cardiac pacemaker removal
Hyperaesthesia
Hyperreflexia (overactive or over responsive reflexes)

60+:

Fatigue (feeling of tiredness)
Asthenia (weakness)
Bladder disorder
Constipation
Dysphagia (a condition in which swallowing is difficult or painful)
Dyspnoea (difficult or laboured respiration)
Pain
Procedural pain
Syncope (loss of consciousness with an inability to maintain postural tone)
Urinary retention (the inability to completely or partially empty the bladder)

What are the existing conditions these people have? *

Muscle Spasms (muscle contraction): 2 people, 9.52%
Multiple Allergies (allergy to multiple agents): 2 people, 9.52%
Influenza Like Illness: 2 people, 9.52%
Hypothyroidism (abnormally low activity of the thyroid gland, resulting in retardation of growth and mental development): 2 people, 9.52%
High Blood Cholesterol: 2 people, 9.52%
Fatigue (feeling of tiredness): 2 people, 9.52%
Eye Pain: 2 people, 9.52%
Dyskinesia (abnormality or impairment of voluntary movement): 2 people, 9.52%
Bone Disorder: 2 people, 9.52%

* Approximation only. Some reports may have incomplete information.

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