Vitamin B2 is a vitamin that is important for converting the food you eat into energy. It also regulates cellular functions and drug metabolism in your body. The recommended daily dietary intake of Vitamin B2 for adults is 1.3 mg (men) and 1.1 mg (non-pregnant women).
You should only take a Vitamin B2 supplement when you have a Vitamin B2 deficiency or are unable to take sufficient Vitamin B2 from your diet. Vitamin B2 deficiency is rare but can cause hair loss, cracked lips, mouth sores, sore throat and itchy eyes. If you are a vegetarian, a person who consumes little milk, or if you are pregnant, you may be at higher risk of Vitamin B2 deficiency.
Vitamin B2 is usually taken as part of a multivitamin or can be taken on its own as a supplement. The usual adult dose is one tablet (10-100 mg) once.
The side effect of taking Vitamin B2 supplement is that your urine might become yellow and orange in colour.
Common dosing schedule:
This schedule is for reference only, adjustments may be made according to individual needs.
Some common medications Vitamin B2 may interact with:
In Hong Kong, Vitamin B2 can be purchased without a prescription from any retail outlet in Hong Kong. This includes grocery stores, convenience stores, medicine shops, and pharmacies. It can also be obtained from doctors. To find a pharmacy near you, refer to the list of pharmacies (“Authorized Sellers of Poisons”) from the Hong Kong Department of Health.
For more information about drug names and ingredients, you can visit Hong Kong’s Drug Office at https://www.drugoffice.gov.hk
Need more information?
For detailed information about the use of Vitamin B2 (Supplement) in children, pregnancy and breastfeeding, and for questions about drug interactions, please check with your pharmacist or doctor.
Disclaimer: our goal is to provide you with the most relevant drug information and common dosage for Hong Kong. This information does not constitute medical advice. For specific treatment recommendations and advice, always discuss with your doctor or pharmacist, and follow the instructions included with your specific medicine.
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