What is the difference between DIMETHYL FUMARATE and Ozanimod?

DIMETHYL FUMARATE is a Other and Ozanimod is a S1P Receptor Modulator. They reach a similar treatment goal through different pharmacological mechanisms, which is why one may be tolerated by a patient who could not tolerate the other.

Is Dimethyl Fumarate the same as Zeposia?

No. Dimethyl Fumarate (DIMETHYL FUMARATE) and Zeposia (Ozanimod) are distinct medications. They are sometimes confused because of similar branding or because they treat overlapping conditions, but they have different active ingredients and different safety profiles.

Which has fewer side effects, DIMETHYL FUMARATE or Ozanimod?

Side-effect frequency varies by individual. The side-effect comparison section on this page shows FAERS-reported events for each drug side by side. FAERS is voluntary reporting, so it reflects what patients and clinicians chose to report, not absolute population risk.

Can I switch from DIMETHYL FUMARATE to Ozanimod?

Switching medications should always be done under prescriber supervision. The "patient stories" section on this page includes accounts from people who have made the switch and what their transition felt like, but those are individual experiences, not protocols.

DIMETHYL FUMARATE vs Ozanimod

Compare DIMETHYL FUMARATE (Dimethyl Fumarate) and Ozanimod (Zeposia) — clinical data, side effects, and patient experiences.

DIMETHYL FUMARATE

Dimethyl Fumarate, Tecfidera · Other

How it works

12.1 Mechanism of Action The mechanism by which dimethyl fumarate (DMF) exerts its therapeutic effect in multiple sclerosis is unknown. DMF and the metabolite, monomethyl fumarate ...

Approved for

1 INDICATIONS AND USAGE Dimethyl fumarate delayed-release capsules are indicated for the treatment of relapsing forms of multiple sclerosis (MS)

to include clinically isolated syndrome

relapsing-remitting disease

and active secondary progressive disease

OralTablet

Ozanimod

Zeposia · S1P Receptor Modulator

How it works

S1P receptor 1,5 modulator that reduces circulating lymphocytes by retaining them in lymph nodes.

Approved for

Relapsing MS

Ulcerative Colitis

FDA: 2020OralTablet

Quick Comparison

DIMETHYL FUMARATEOzanimod

Drug Class

Other

S1P Receptor Modulator

Route

Oral

Half-Life

—

FDA Approved

—

2020

Side Effect Frequency Comparison

Estimated frequency (%) based on clinical trial data

Side Effects

DIMETHYL FUMARATE

Nausea

1-10%

Diarrhea

1-10%

Fatigue

1-10%

Vomiting

1-10%

Drug Not Working

1-10%

Headache

0.1-1%

Itching

0.1-1%

Falls

0.1-1%

Ozanimod

Fatigue

>10%

Drug Not Working

>10%

Headache

>10%

Dizziness

1-10%

Nausea

1-10%

Diarrhea

1-10%

Back Pain

0.1-1%

Falls

0.1-1%

FDA Warnings

DIMETHYL FUMARATE

5 WARNINGS AND PRECAUTIONS Anaphylaxis and angioedema: Discontinue and do not restart dimethyl fumarate if these occur
2 ) Herpes zoster and other serious opportunistic infections: Consider withholding dimethyl fumarate in cases of serious infection until the infection has resolved
PML is an opportunistic viral infection of the brain caused by the JC virus (JCV) that typically only occurs in patients who are immunocompromised, and that usually leads to death or severe disability
A fatal case of PML occurred in a patient who received dimethyl fumarate for 4 years while enrolled in a clinical trial

Ozanimod

No specific warnings

Clinical Trial Data

No head-to-head clinical studies found for DIMETHYL FUMARATE vs Ozanimod.

DIMETHYL FUMARATE vs Ozanimod: What You Should Know

Key Differences

DIMETHYL FUMARATE is a Other, while Ozanimod belongs to the S1P Receptor Modulator class. This means they work through different pharmacological mechanisms, which may influence both efficacy and side effect profiles.

Safety Considerations

DIMETHYL FUMARATE carries 4 FDA warnings. Patients should discuss all warnings and contraindications with their healthcare provider before starting or switching medications..

This comparison is for informational purposes only. Always consult a qualified healthcare professional before making medication decisions.

Related Comparisons

DIMETHYL FUMARATE vs FINGOLIMOD→DIMETHYL FUMARATE vs TERIFLUNOMIDE→DIMETHYL FUMARATE vs GLATIRAMER→DIMETHYL FUMARATE vs SIPONIMOD→DIMETHYL FUMARATE vs PONESIMOD→CLADRIBINE vs DIMETHYL FUMARATE→

Primary sources

Every figure on this comparison links back to its primary source. See data sources and methodology for the full provenance trail.

DIMETHYL FUMARATE: DailyMed label · FAERS adverse events · ClinicalTrials.gov
Ozanimod: DailyMed label · FAERS adverse events · ClinicalTrials.gov

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DIMETHYL FUMARATE vs Ozanimod

Compare DIMETHYL FUMARATE (Dimethyl Fumarate) and Ozanimod (Zeposia) — clinical data, side effects, and patient experiences.

DIMETHYL FUMARATE

Dimethyl Fumarate, Tecfidera · Other

How it works

12.1 Mechanism of Action The mechanism by which dimethyl fumarate (DMF) exerts its therapeutic effect in multiple sclerosis is unknown. DMF and the metabolite, monomethyl fumarate ...

Approved for

1 INDICATIONS AND USAGE Dimethyl fumarate delayed-release capsules are indicated for the treatment of relapsing forms of multiple sclerosis (MS)

to include clinically isolated syndrome

relapsing-remitting disease

and active secondary progressive disease

OralTablet

Ozanimod

Zeposia · S1P Receptor Modulator

How it works

S1P receptor 1,5 modulator that reduces circulating lymphocytes by retaining them in lymph nodes.

Approved for

Relapsing MS

Ulcerative Colitis

FDA: 2020OralTablet

Quick Comparison

DIMETHYL FUMARATEOzanimod

Drug Class

Other

S1P Receptor Modulator

Route

Oral

Half-Life

—

FDA Approved

—

2020

Side Effect Frequency Comparison

Estimated frequency (%) based on clinical trial data

Side Effects

DIMETHYL FUMARATE

Nausea

1-10%

Diarrhea

1-10%

Fatigue

1-10%

Vomiting

1-10%

Drug Not Working

1-10%

Headache

0.1-1%

Itching

0.1-1%

Falls

0.1-1%

Ozanimod

Fatigue

>10%

Drug Not Working

>10%

Headache

>10%

Dizziness

1-10%

Nausea

1-10%

Diarrhea

1-10%

Back Pain

0.1-1%

Falls

0.1-1%

FDA Warnings

DIMETHYL FUMARATE

5 WARNINGS AND PRECAUTIONS Anaphylaxis and angioedema: Discontinue and do not restart dimethyl fumarate if these occur
2 ) Herpes zoster and other serious opportunistic infections: Consider withholding dimethyl fumarate in cases of serious infection until the infection has resolved
PML is an opportunistic viral infection of the brain caused by the JC virus (JCV) that typically only occurs in patients who are immunocompromised, and that usually leads to death or severe disability
A fatal case of PML occurred in a patient who received dimethyl fumarate for 4 years while enrolled in a clinical trial

Ozanimod

No specific warnings

Clinical Trial Data

No head-to-head clinical studies found for DIMETHYL FUMARATE vs Ozanimod.

DIMETHYL FUMARATE vs Ozanimod: What You Should Know

Key Differences

Safety Considerations

DIMETHYL FUMARATE carries 4 FDA warnings. Patients should discuss all warnings and contraindications with their healthcare provider before starting or switching medications..

This comparison is for informational purposes only. Always consult a qualified healthcare professional before making medication decisions.