Water-Soluble (B2)·Vitamins & Minerals

Riboflavin

Migraine prophylaxis, Vitamin B2 deficiency (stomatitis, glossitis, cheilosis)

VITAMINVarious OTCTablets, CapsulesUNSCHEDULEDTGA

No source link confirmed for this record yet. Its own source notes are under Additional.

At a glance

Max Dose

400 mg/day

Half-life

Hours

Migraine

PROPHYLAXIS

Caution: Urine Color

NEON YELLOW

Cautions

Avoid / Cautions

NONE. Safe and highly recommended for migraine prophylaxis in pregnant women who cannot take standard preventative drugs.

Where it stands

Rapid Summary

Overview

Vitamin B2. Essential water-soluble vitamin involved in cellular energy production (FAD/FMN). Extremely safe. Extensively used in neurology for migraine prevention.

Clinical Focus

Will turn the patient's urine a glowing, fluorescent neon yellow. Must warn them to prevent panic.

Bottom Line

Riboflavin is used for migraine prophylaxis and riboflavin deficiency, but causes harmless bright yellow urine and has limited evidence for most supplementation claims.

Formulation & Access

Brand Names

Various OTC

Oral Routes

Tablets, Capsules.

Prescribing & PBS

Over The Counter (OTC).

Indications & Use

Primary

TGA

Migraine prophylaxis, Vitamin B2 deficiency (stomatitis, glossitis, cheilosis).

Clinical Place

A superb, completely non-toxic, highly effective preventative treatment for chronic migraines. Often used as first-line before starting toxic drugs like Topiramate or Amitriptyline.

Quick reference

Class & Role

Water-Soluble (B2) — Vitamin B2.

Route / Formulation

Tablets, Capsules. (Various OTC)

Usual Dose & Max

PO 400 mg OD (Requires 3 months of use to see efficacy). Max 400 mg/day (For migraines).

Key Indication Doses

Migraine Prophylaxis: PO 400 mg OD (Requires 3 months of use to see efficacy). Ariboflavinosis (Deficiency): PO 5-30 mg/day.

Best Uses

Riboflavin is used for migraine prophylaxis and riboflavin deficiency, but causes harmless bright yellow urine and has limited evidence for most supplementation claims.

Key Risks

Genitourinary: Intense neon-yellow discoloration of urine (Flavinuria). Harmless. Systemic: Virtually zero toxicity. Cannot overdose due to water solubility and limited gut absorption.

Key Interactions

NONE.

Monitoring

Warn the patient about the urine color change. Reassure them it is not liver failure or bleeding.

Clinical Pearl

Patients often quit Riboflavin after 2 weeks because their migraines haven't stopped. It takes 3 full months of 400mg daily to replenish mitochondrial enzymes in the brain. They must persist.

Access

Various OTCTablets, Capsules

Brand: Various OTC
Formulation: Tablets, Capsules.

From this page

No calculator, monitoring schedule or factsheet is linked to this medicine page yet.

Water-Soluble (B2)·Vitamins & Minerals

Riboflavin

Migraine prophylaxis, Vitamin B2 deficiency (stomatitis, glossitis, cheilosis)

VITAMINVarious OTCTablets, CapsulesUNSCHEDULEDTGA

No source link confirmed for this record yet. Its own source notes are under Additional.

At a glance

Max Dose

400 mg/day

Half-life

Hours

Migraine

PROPHYLAXIS

Caution: Urine Color

NEON YELLOW

Cautions

Avoid / Cautions

NONE. Safe and highly recommended for migraine prophylaxis in pregnant women who cannot take standard preventative drugs.

Where it stands

Rapid Summary

Overview

Vitamin B2. Essential water-soluble vitamin involved in cellular energy production (FAD/FMN). Extremely safe. Extensively used in neurology for migraine prevention.

Clinical Focus

Will turn the patient's urine a glowing, fluorescent neon yellow. Must warn them to prevent panic.

Bottom Line

Riboflavin is used for migraine prophylaxis and riboflavin deficiency, but causes harmless bright yellow urine and has limited evidence for most supplementation claims.

Formulation & Access

Brand Names

Various OTC

Oral Routes

Tablets, Capsules.

Prescribing & PBS

Over The Counter (OTC).

Indications & Use

Primary

TGA

Migraine prophylaxis, Vitamin B2 deficiency (stomatitis, glossitis, cheilosis).

Clinical Place

A superb, completely non-toxic, highly effective preventative treatment for chronic migraines. Often used as first-line before starting toxic drugs like Topiramate or Amitriptyline.

Quick reference

Class & Role

Water-Soluble (B2) — Vitamin B2.

Route / Formulation

Tablets, Capsules. (Various OTC)

Usual Dose & Max

PO 400 mg OD (Requires 3 months of use to see efficacy). Max 400 mg/day (For migraines).

Key Indication Doses

Migraine Prophylaxis: PO 400 mg OD (Requires 3 months of use to see efficacy). Ariboflavinosis (Deficiency): PO 5-30 mg/day.

Best Uses

Riboflavin is used for migraine prophylaxis and riboflavin deficiency, but causes harmless bright yellow urine and has limited evidence for most supplementation claims.

Key Risks

Genitourinary: Intense neon-yellow discoloration of urine (Flavinuria). Harmless. Systemic: Virtually zero toxicity. Cannot overdose due to water solubility and limited gut absorption.

Key Interactions

NONE.

Monitoring

Warn the patient about the urine color change. Reassure them it is not liver failure or bleeding.

Clinical Pearl

Patients often quit Riboflavin after 2 weeks because their migraines haven't stopped. It takes 3 full months of 400mg daily to replenish mitochondrial enzymes in the brain. They must persist.

Access

Various OTCTablets, Capsules

Brand: Various OTC
Formulation: Tablets, Capsules.

From this page

No calculator, monitoring schedule or factsheet is linked to this medicine page yet.