Vitamin B2

Generic Name: riboflavin (vitamin B2) (RYE bow flay vin)

Brand Names: Vitamin B2

What is riboflavin?

Riboflavin is vitamin B2. Vitamins are naturally occurring substances necessary for many processes in the body. Riboflavin is important in the maintenance of many tissues of the body.

Riboflavin is used to prevent and to treat deficiencies of riboflavin.

Riboflavin may also be used for other purposes not listed in this medication guide.

What is the most important information I should know about riboflavin?

Use riboflavin as directed on the label, or as your healthcare provider has prescribed. Do not use this product in larger amounts or for longer than recommended.

What should I discuss with my healthcare provider before taking riboflavin?

Before taking riboflavin, talk to your doctor, pharmacist, or health care professional if you have any other medical conditions, allergies, or if you take other medicines or other herbal/health supplements.

It is not known whether riboflavin is harmful to an unborn baby. Your dose needs may be different during pregnancy. Before taking this product, tell your doctor if you are pregnant or plan to become pregnant while using riboflavin. It is not known whether riboflavin passes into breast milk or if it could harm a nursing baby. Your dose needs may be different while you are nursing. Do not use this product without telling your doctor if you are breast-feeding a baby.

How should I take riboflavin?

Use riboflavin as directed on the label, or as your healthcare provider has prescribed. Do not use this product in larger amounts or for longer than recommended.

Take this product with a full glass of water. Store riboflavin at room temperature away from moisture and heat.

What happens if I miss a dose?

Skip the missed dose if it is almost time for your next scheduled dose. Do not use extra medicine to make up the missed dose.

What happens if I overdose?

Seek emergency medical attention or call the Poison Help line at 1-800-222-1222.

What should I avoid while taking riboflavin?

Follow your healthcare provider's instructions about any restrictions on food, beverages, or activity.

Riboflavin side effects

Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.

Riboflavin may cause your urine to become a yellow-orange color. This effect is harmless.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

What other drugs will affect riboflavin?

There may be other drugs that can interact with riboflavin. Tell your doctor about all medications you use. This includes prescription, over-the-counter, vitamin, and herbal products. Do not start a new medication without telling your doctor.

More Vitamin B2 resources

• Vitamin B2 Support Group
• 2 Reviews for Vitamin B2 - Add your own review/rating

• Riboflavin Monograph (AHFS DI)


• riboflavin Advanced Consumer (Micromedex) - Includes Dosage Information

Compare Vitamin B2 with other medications

• Dietary Supplementation
• Headache
• Migraine Prevention
• Vitamin/Mineral Supplementation and Deficiency

Where can I get more information?

• Your pharmacist can provide more information about riboflavin.