Generlac and Tecfidera drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Generlac (lactulose) and Tecfidera (dimethyl fumarate). Common drug interactions include affect lability among females.

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

Generlac has active ingredients of lactulose. It is often used in constipation. eHealthMe is studying from 657 Generlac users. Check the latest studies of Generlac.

What is Tecfidera?

Tecfidera has active ingredients of dimethyl fumarate. It is often used in multiple sclerosis. eHealthMe is studying from 129,627 Tecfidera users. Check the latest studies of Tecfidera.

On Jul, 10, 2026

16 people who take Generlac and Tecfidera together, and have interactions are studied.

Generlac and Tecfidera drug interactions.

What are the common drug interactions of Generlac and Tecfidera, by gender? *:

female:

Affect lability (emotional incontinence)
Anaemia (lack of blood)
Abdominal pain upper
Asthenia (weakness)
Brachial plexopathy (pain, decreased movement, or decreased sensation in the arm and shoulder due to a nerve problem)
Bursitis (inflammation of a bursa, typically one in the knee, elbow, or shoulder)
Fall
Fatigue (feeling of tiredness)
Loss of consciousness
Mental status changes (general changes in brain function, such as confusion, amnesia (memory loss), loss of alertness, loss of orientation)

male:

n/a

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

0-1:

n/a

2-9:

n/a

10-19:

n/a

20-29:

n/a

30-39:

n/a

40-49:

Fall

50-59:

Hypertension (high blood pressure)
Migraine (headache)
Osteopenia (a condition where bone mineral density is lower than normal)
Abdominal pain upper
Asthenia (weakness)
Brachial plexopathy (pain, decreased movement, or decreased sensation in the arm and shoulder due to a nerve problem)
Bursitis (inflammation of a bursa, typically one in the knee, elbow, or shoulder)
Fatigue (feeling of tiredness)
Loss of consciousness
Mental status changes (general changes in brain function, such as confusion, amnesia (memory loss), loss of alertness, loss of orientation)

60+:

Arthritis bacterial (form of joint disorder that involves inflammation of one or more joints due to bacterial infection)
Fall
Headache (pain in head)
Lymph gland infection

What are the existing conditions these people have? *

Stress And Anxiety: 6 people, 37.50%
Muscle Spasms (muscle contraction): 6 people, 37.50%
Nausea (feeling of having an urge to vomit): 5 people, 31.25%
Gait Disturbance: 4 people, 25.00%
Pain: 2 people, 12.50%
Nausea And Vomiting: 2 people, 12.50%
High Blood Pressure: 2 people, 12.50%

* Approximation only. Some reports may have incomplete information.

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