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

Summary:

Drug interactions are reported among people who take Avonex (interferon beta 1a) and Ms contin (morphine sulfate). Common drug interactions include shock among females and urticaria among males.

The phase IV clinical study analyzes what interactions people have when they take Avonex and Ms contin. It is created by eHealthMe based on reports of 69 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 Ms contin?

Ms contin has active ingredients of morphine sulfate. It is often used in pain. eHealthMe is studying from 69,289 Ms contin users. Check the latest studies of Ms contin.

On Jul, 08, 2026

69 people who take Avonex and Ms contin together, and have interactions are studied.

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

female:

Shock (a life-threatening condition with symptoms like low blood pressure, weakness, shallow breathing, cold, clammy skin)
Spinal fracture (fracture in one of vertebrae)
Suicide attempt
Urinary tract infection
Vomiting
Weight increased
Balance disorder
Deep vein thrombosis (blood clot in a major vein that usually develops in the legs and/or pelvis)
Encephalopathy (functioning of the brain is affected by some agent or condition)
Musculoskeletal chest pain (pain in chest muscle or nerve or bones)

male:

Urticaria (rash of round, red welts on the skin that itch intensely)
Convulsion (muscles contract and relax rapidly and repeatedly, resulting in an uncontrolled shaking of the body)
Pneumonia
Bladder cancer
Confusional state
Constipation
Diplopia (double vision)
Dizziness
Drug intolerance (drug sensitivity)
Dyspepsia (indigestion)

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

0-1:

n/a

2-9:

n/a

10-19:

n/a

20-29:

n/a

30-39:

Fatigue (feeling of tiredness)
Anxiety
Dizziness
Heart rate decreased
Influenza like illness
Musculoskeletal pain (pain affects the bones, muscles, ligaments, tendons, and nerves)
Sinus tachycardia (a heart rhythm with elevated rate of impulses originating from the sinoatrial node)
Subendocardial ischaemia
Supraventricular tachycardia (rapid heart rhythm originating at or above the atrioventricular node)
Abdominal pain

40-49:

Fall
Influenza like illness
Pulmonary embolism (blockage of the main artery of the lung)
Ankle fracture
Chest discomfort
Diverticulitis (digestive disease which involves the formation of pouches (diverticula) within the bowel wall)
Fatigue (feeling of tiredness)
Fracture
Glossodynia (a burning or painful sensation in the tongue)
Loss of consciousness

50-59:

Osteoarthritis (a joint disease caused by cartilage loss in a joint)
Osteonecrosis of jaw (death of bone of jaw)
Osteopenia (a condition where bone mineral density is lower than normal)
Pain in jaw
Panic attack
Polymyalgia rheumatica (pain in many muscles)
Post herpetic neuralgia (neuralgia caused by the varicella zoster virus)
Progesterone receptor assay positive
Seizure (abnormal excessive or synchronous neuronal activity in the brain)
Sepsis (a severe blood infection that can lead to organ failure and death)

60+:

Hypotension (abnormally low blood pressure)
Pneumonia
Anxiety
Chronic lymphocytic leukaemia (cancer in which the bone marrow makes too many lymphocytes (a type of white blood cell))
Dysphagia (a condition in which swallowing is difficult or painful)
Parkinson's disease
Abnormal behaviour
Apnoea (suspension of external breathing)
Asthenia (weakness)
Atrophic vulvovaginitis (inflammation of the vulva)

What are the existing conditions these people have? *

Nausea (feeling of having an urge to vomit): 4 people, 5.80%

* Approximation only. Some reports may have incomplete information.

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