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

Summary:

Drug interactions are reported among people who take Orencia (abatacept) and Avonex (interferon beta 1a). Common drug interactions include influenza like illness among females and adrenal neoplasm among males.

The phase IV clinical study analyzes what interactions people have when they take Orencia and Avonex. It is created by eHealthMe based on reports of 30 people who take the same drugs from the FDA, and is updated regularly.

What is Orencia?

Orencia has active ingredients of abatacept. It is often used in rheumatoid arthritis. eHealthMe is studying from 135,415 Orencia users. Check the latest studies of Orencia.

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.

On Jul, 26, 2026

30 people who take Orencia and Avonex together, and have interactions are studied.

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

female:

Influenza like illness
Maternal exposure during pregnancy (use of substance during pregnancy)
Abnormal behaviour
Amnesia (deficit in memory caused by brain damage, disease, or psychological trauma)
Aortic stenosis (obstruction to the outflow of blood from the left ventricle into the aorta)
Arthralgia (joint pain)
Pain in extremity
Peripheral swelling
Headache (pain in head)
Gait disturbance

male:

Adrenal neoplasm (abnormal growth of adrenal gland)
Gallbladder disorder
Gastrointestinal disorder (functional problems of gastrointestinal tract)
Influenza like illness
Urinary tract infection
Craniopharyngioma (a type of brain tumour derived from pituitary gland embryonic tissue)
Haematuria (presence of blood in urine)
Haemorrhage (bleeding)
Hypopituitarism (diminished hormone secretion by the pituitary gland, causing dwarfism in children and premature aging in adults)
Pituitary tumour benign

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

0-1:

n/a

2-9:

n/a

10-19:

Asthenia (weakness)
Eosinophilia (eosinophil count in the peripheral blood exceeds)
Hemiparesis (weakness on one side of the body)
Influenza like illness
Mobility decreased (ability to move is reduced)
Overweight

20-29:

n/a

30-39:

Visual acuity reduced (reduced clearness of vision)

40-49:

n/a

50-59:

Hypopituitarism (diminished hormone secretion by the pituitary gland, causing dwarfism in children and premature aging in adults)
Influenza like illness
Pituitary tumour benign
Urinary tract infection
Arterial thrombosis (formation of a blood clot inside a blood vessel, obstructing the flow of blood through the circulatory system)
Arteriosclerosis coronary artery (thickening and hardening of arteries- coronary artery)
Hypertension (high blood pressure)
Myocardial infarction (destruction of heart tissue resulting from obstruction of the blood supply to the heart muscle)
Anaemia (lack of blood)
Angina unstable (chest pain due to ischemia of the heart muscle- unstable)

60+:

Influenza like illness
Arthralgia (joint pain)
Erythema (redness of the skin)
Eyelid ptosis (falling of the upper or lower eyelid)
Feeling hot
Gait disturbance
General symptom
Heart rate increased
Hypertensive crisis
Hyponatraemia (abnormally low level of sodium in the blood; associated with dehydration)

What are the existing conditions these people have? *

Muscle Spasms (muscle contraction): 3 people, 10.00%
Relapsing-Remitting Multiple Sclerosis (reoccurrence of an inflammatory disease in which the insulating covers of nerve cells in the brain and spinal cord are damaged): 2 people, 6.67%
Gait Disturbance: 2 people, 6.67%

* Approximation only. Some reports may have incomplete information.

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