Vitamin B Complex

Vitamin B Complex

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By Medicover Hospitals / 17 Feb 2021
Home | Medicine | Vitamin B Complex
  • Vitamin B is a group of nutrients which plays a very important role in the body. Typically, Vitamin B-complex supplements pack all eight vitamins B into a single tablet. Vitamin B is water-soluble, which suggests they are not processed by the body. For this reason, each day, your diet must supply them. Vitamin B has many significant roles and is essential for good health to be sustained.
    1. Vitamin B Complex Uses
    2. Side effects
    3. Precautions
    4. Dosage
    5. Interactions
    6. Storage
    7. FAQ's

    Vitamin B complex is composed of eight B vitamins:

  • B1 (Thiamine): Thiamine plays a very important role in building metabolism by helping them to convert nutrients into energy.
  • B2 (Riboflavin): Riboflavin helps in converting food into energy. This also works as an antioxidant. Foods that are high in Riboflavin are organ meats, beef and mushrooms.
  • B3 (Niacin): Niacin plays an important role in cellular signalling, metabolism and DNA production and repair. Food sources it includes are chicken, tuna and lentils.
  • B5 (Pantothenic Acid): Pantothenic acid helps the body to obtain energy from various food like liver, fish, yogurt and avocado. This helps in the production of hormone and cholesterol.
  • B6 (Pyridoxine): Pyridoxine is involved in the production of amino acid metabolism, red blood cell production and the creation of neurotransmitters. Food that is high in vitamin are chickpeas, salmon and potatoes.
  • B7 (Biotin): Biotin are essential for the production of carbohydrate and fat metabolism which helps in regulating gene expression. Foods that it includes are Yeast, eggs, salmon, cheese and Liver.
  • B9 (Folate): For cell development, amino acid metabolism, and for the formation of red and white blood cells, folate is necessary. This can be found in foods such as leafy greens, beans and liver, or in vitamins such as folic acid.
  • B12 (Cobalamin): Cobalamin is vital for neurological function, DNA production and red blood cell development. B12 are found in the animal sources like meats, eggs, seafood and dairy.
  • Vitamin B Complex Uses:

  • This substance is a mixture of vitamins B that is used for the treatment or prevention of vitamin deficiency due to inadequate nutrition, some diseases, alcoholism or pregnancy. Vitamins are vital components of the body and help keep you in good health. Vitamins B includes thiamine, riboflavin, niacin/niacinamide, vitamin B6, vitamin B12, folic acid, and pantothenic acid. Ingredients such as vitamin C, vitamin E, biotin, or zinc are also found in certain brands of B vitamins.
  • In sustaining good health and well-being, vitamins B play a crucial role. Vitamins B have a significant effect on your energy levels, brain activity, and cell metabolism as the building blocks of a healthy body. Vitamin B complex helps avoid infections and helps support or encourage:
    • Cell health
    • Growth of red blood cells
    • Energy levels
    • Good eyesight
    • Healthy appetite
    • Proper nerve function
    • Hormones and Cholestrol production
    • Cardiovascular health

    Vitamin B Complex Side effects:

  • Some of the common and serious side effects of Vitamin B Complex are:
    • Stomach Cramp
    • Rashes
    • Itching
    • Dizziness
    • Trouble in breathing
    • Vomiting
    • High blood sugar levels


  • Before taking Vitamin B complex talk with your doctor if you are allergic to it or any other medication. The product may contain some excessive presence of inactive ingredients which can lead to some serious allergic reactions.
  • If you are having any medical history then talks with your doctor immediately:
    • Diabetes
    • Liver problems
    • Vitamin B12 deficiency

    How to take Vitamin B Complex?

  • Take Vitamin B complex orally and once a day. Take this drug with a full glass of water (8 ounces/240 millilitres). Chew the tablet carefully before swallowing if you're taking chewable tablets. Swallow them whole if you're taking extended-release capsules.
  • Dosages

    Vitamin B Complex
    Vitamin B1 1.2mg 1.1mg 1.4mg 1.4mg
    Vitamin B2 1.3mg 1.1mg 1.4mg 1.6mg
    Vitamin B3 16 mg 14 mg 17 mg 18 mg
    Vitamin B5 5 mg 5 mg 6 mg 7 mg
    Vitamin B6 1.3 mg 1.5 mg 1.9 mg 2.0 mg
    Vitamin B7 30 mcg 30 mcg 30 mcg 35 mcg
    Vitamin B9 400 mcg 400 mcg 600 mcg 500 mcg
    Vitamin B12 2.4 mcg 2.4 mcg 2.6 mcg 2.8 mcg

    Missed Dose:

  • If this Vitamin B complex is taken on a daily basis and you skip a dose, take it as soon as you recall. If the time for the next dose is close, skip the skipped dose. At your normal time, take your next dose. To catch up, do not double the dose.
  • Overdose:

  • A drug overdose may be accidental. There is a risk of having an adverse effect on your body's functions if you have taken more than the recommended Vitamin B complex tablets. A drug overdose can lead to a medical emergency.
  • Interactions:

  • Vitamin B does not interfere adversely with other drugs in most cases. However, such medications may increase the risk of vitamin B deficiency. Examples of drugs that can result in low levels of particular B vitamins are as follows:
    • Drugs for blood pressure and chemotherapy drugs will reduce the B-1 levels of an individual.
    • B-3, B-6, and B-9 levels may be reduced by antiseizure drugs used for epilepsy
    • Low levels of B-3 and B-6 can be caused by drugs that treat tuberculosis


  • Direct contact with heat, air and light may damage your medicines. Exposure to medicine may cause some harmful effects. The medicine must be kept in a safe place and out of children’s reach. Mainly the drug should be kept at room temperature between 68ºF and 77ºF (20ºC and 25ºC).
  • Frequently Asked Questions:

    Vitamins are vital components of the body and help keep you in good health. Vitamins B includes thiamine, riboflavin, niacin/niacinamide, vitamin B6, vitamin B12, folic acid, and pantothenic acid. Ingredients such as vitamin C, vitamin E, biotin, or zinc are also found in certain brands of B vitamins.
    A daily B-complex vitamin will help ensure that enough of these significant nutrients are consumed by people who want to adopt diets that exclude animal products.
    Vitamin B has the presence of eight various vitamins. In transforming food into energy in the body, all B vitamins play a part. Each vitamin has a specific role in the health of an individual as well. Vitamin B-complex supplements in a single pill contain all of the essential B vitamins
    Some of the signs of Vitamin B complex are:
    • Numbness
    • Fatigue
    • Weakness
    • Mouth sores
    • Loss of breath
    B-complex vitamins should be taken early in the day, usually with your first meal, since they help the body generate energy from food and can interfere with your sleep if taken later in the day.
    The anecdotal effects of B vitamins can be fairly immediate, although research has shown that B vitamins (in addition to vitamin C and minerals) make participants feel more alert within about 2 weeks.


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