Vitamin B-complex is an umbrella term for the eight essential B vitamins needed in our bodies. The B-complex includes:
These vitamins have different functions individually, as well as working together in the body to sustain bodily functions, including but not limited to maintaining energy levels, brain and nerve functions, cell metabolism, growth of skin/nails/hair, and overall health.
Most people can obtain enough B vitamins by eating a balanced diet, however, in some individuals, it is still possible to be deficient. Signs and symptoms of vitamin B deficiency include skin rashes, scaly skin, swollen tongue, fatigue, weakness, anaemia, confusion, abdominal cramps, diarrhoea or constipation, numbness or tingling in the feet and hands.
Vitamin B-complex is available in many formulations, such as tablets, capsules or oral solutions. For specific dosages, please refer to specific product labels.
Healthy children and adults do not need supplements as they can obtain enough from a normal diet. However, people with Vitamin B-complex deficiency may take Vitamin B-complex supplements.
For women, the recommended daily intake is:
For men, the recommended daily intake is:
Vitamin B-complex is water-soluble and is unlikely to cause serious side effects. However, taking excessive supplements may cause bright yellow urine, vomiting, skin flushing, light sensitivity, high blood sugar levels or even liver damage.
Common dosing schedule:
Some common medications Vitamin B-complex may interact with:
Please notify your doctor or pharmacist if you are taking the above medication, dosage adjustments might be needed.
Most people should obtain adequate amounts of Vitamin B-complex from a healthy diet. A wide variety of food sources contain B Vitamins, such as milk and dairy products, meat, fish, shellfish, vegetables, whole grains and cereals, nuts and seeds, fruits, soy products and beans.
In Hong Kong, Vitamin B-complex is an over-the-counter medicine and 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 B-complex 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.