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Vitamin B Complex Oral Dosage

Generic Name: Vitamin B Complex

What are the side effects of Vitamin B Complex?

BRAND NAME: Nephro-vite, Nephrocaps, Triphrocaps

Medication Uses | How To Use | Side Effects | Precautions | Drug Interactions | Overdose | Notes | Missed Dose | Storage

USES: This product is a combination of B vitamins used to treat or prevent vitamin deficiency due to poor diet, certain illnesses, alcoholism, or during pregnancy. Vitamins are important building blocks of the body and help keep you in good health. B vitamins include thiamine, riboflavin, niacin/niacinamide, vitamin B6, vitamin B12, folic acid, and pantothenic acid.Some brands of B vitamins also contain ingredients such as vitamin C, vitamin E, biotin, or zinc. Consult your doctor or pharmacist if you have questions about the ingredients in your brand.

OVERDOSE: If overdose is suspected, contact a poison control center or emergency room immediately. US residents can call their local poison control center at 1-800-222-1222. Canada residents can call a provincial poison control center. Symptoms of overdose may include: stomach pain, nausea, vomiting, diarrhea.

NOTES: Keep all regular medical and laboratory appointments.This product is not a substitute for a proper diet. Remember that it is best to get your vitamins from healthy foods. B vitamins are naturally found in leafy greens and other vegetables, meat, fish, poultry, and enriched breads/cereals.

Information last revised August 2013. Copyright 2013 First Databank, Inc.

Converts Food Into Energy

Most B vitamins are involved in the process of converting food into energy. Some help to metabolize carbohydrates and others aid in breaking down fat and/or protein.

While this is an essential process, that’s not to say taking a vitamin B complex supplement will boost your energy. Although B vitamins are essential for your body, the effect is different when they are consumed in the form of dietary supplements rather than food. A B-complex supplement may fill a specific vitamin gap or deficiency, however, it cannot provide energy in the form of calories like a food source.

B vitamins involved: B1, B2, B3, B5, B6, B7, and B12

What Are The Benefits Of Consuming Vitamin B Complex Capsules

Vitamin B-complex capsules are known to help with a lot of health problems. Here are some of the vitamin B complex benefits:

  • Helps People With Migraine

According to a lot of studies, it is believed that B vitamins like B6, B9 and B12 can help in preventing problems such as migraine. Some studies also show that vitamin B12 present in vitamin B complex influences the mitochondrial dysfunction that occurs at the cellular level and thereby prevents migraine pain.

  • Helps in reducing depression and anxiety

Studies show that deficiency of vitamins like B-9 and B-12 can cause depression and anxiety. According to a study conducted in the year 2018, vitamin B supplements play an important role in reducing problems like depression and anxiety. Research says that taking B vitamins capsules or supplements regularly for several weeks to years is known to reduce the risk of depression relapse.

  • Healing of Skin Wounds

Regular intake of Vitamins B complex supplements may help in healing your wounded skin.

  • May Heal Canker sores or Oral ulcers

Vitamin B complex capsules are known to be very helpful in treating canker sores or oral ulcers.

  • Improves premenstrual syndrome

Some studies also suggest that regular intake of a combined supplement of B complex and calcium supplements help in improving symptoms of premenstrual syndrome .

  • Helpful For Pregnant Woman

As vitamin B complex supplements contain folic acid, it is extremely helpful for pregnant women.

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May Reduce Symptoms Of Anxiety Or Depression

While B-complex vitamin supplements are not a cure for mental health conditions, they may help improve symptoms of depression or anxiety.

A study in 60 adults with depression showed that treatment with a vitamin B complex for 60 days led to significant improvements in depression and anxiety symptoms, compared with a placebo .

B vitamins may also enhance treatment response when given in combination with antidepressant medication.

One study found that supplementing with a vitamin containing B12, B6, and folic acid led to a more enhanced and lasting antidepressant response over 1 year, compared with a placebo .

Note that low blood levels of certain B vitamins, including B12, B6, and folate, have been linked to an increased risk of depression, which is why its important to rule out nutrient deficiencies if you are experiencing symptoms of depression (

33 ).

If you are deficient in B vitamins, you may need to supplement with higher doses to address the deficiency.

For these reasons, its important to choose a B-complex supplement based on your individual requirements for each B vitamin.

Speak with a healthcare professional about your specific nutrient needs based on your age and health.

Summary

The recommended intake for B vitamins varies depending on age, nutrient demands, biological sex, and health status.

How Much Vitamin B Complex Is Safe To Take In A Day

Nature

A vitamin B complex supplement typically contains riboflavin, pantothenic acid, folic acid, niacin, biotin, thiamin, vitamin B6 and vitamin B12. Most people get enough from foods high in B vitamins.

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However, people with restricted or poor diets or those with certain medical conditions may benefit from taking a vitamin B complex supplement. Always talk to your doctor to determine if supplementation is appropriate in your situation.

Tip

While personal vitamin needs vary from person to person, you shouldn’t get more than 100 percent of the RDA from your vitamin B complex.

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May Lower Cholesterol And Triglyceride Levels

While some evidence supports the notion that vitamin U supplements help reduce cholesterol and triglyceride levels, evidence remains weak.

For instance, one test-tube study suggests that vitamin U may prevent the creation of fat cells and reduce triglyceride levels, but few relevant human studies exist .

In an 8-week study, people given 1.5 grams of vitamin U per day experienced no change in triglyceride levels, higher HDL cholesterol, and an almost 10% reduction in total cholesterol. Yet, this study is very dated and included few participants (

As such, more human research is needed.

Where Should I Keep My Medication

Keep out of the reach of children and pets.

See product label for storage information. Each product may have different instructions. Get rid of any unused medicine after the expiration date.

To get rid of medicines that are no longer needed or have expired:

NOTE: This sheet is a summary. It may not cover all possible information. If you have questions about this medicine, talk to your doctor, pharmacist, or health care provider.

Copyright ©2022 Elsevier Inc. All Rights Reserved. Terms of Use.

Cleveland Clinic is a non-profit academic medical center. Advertising on our site helps support our mission. We do not endorse non-Cleveland Clinic products or services.Policy

Cleveland Clinic is a non-profit academic medical center. Advertising on our site helps support our mission. We do not endorse non-Cleveland Clinic products or services.Policy

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What Is The Recommended Intake Of Vitamin B Complex

According to the NHS, each individual B vitamin has a different recommended dosage per day, which is different for men and women. When you buy vitamin B complex supplements, its worth reading the ingredients list to make sure the dosages are close to the RDAs outlined below.

There is no specific guidance about daily dosages for B5 or B7 . Instead, the NHS recommends that a daily dosage of B5 should not exceed 200mg, and that a daily dosage of B7 should not exceed 0.9mg.

Tolerable Upper Intake Levels

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The tolerable upper intake level is the maximum amount of a vitamin or mineral you can take without running the risk of experiencing unpleasant side effects.

Although it may be beneficial to take more than the recommended dietary allowance of certain vitamins, you should never take more than the tolerable upper intake level unless specifically instructed by a doctor to do so.

Some B vitamins, such as vitamin B12, thiamin, biotin, pantothenic acid and riboflavin, don’t have tolerable upper intake levels. This means that you’re unlikely to experience adverse reactions when taking these vitamins, even if you take high doses.

However, folate, vitamin B6 and niacin do have a tolerable upper intake levels. Getting more than 1,000 micrograms a day of folate, 35 milligrams a day of niacin or 100 milligrams a day of vitamin B6 may cause unpleasant side effects. Avoid taking a vitamin B complex supplement that contains more than these amounts.

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May Aid Wound Healing And Skin Protection

Vitamin U may offer some protection against the suns ultraviolet rays, as well as expedite wound healing.

Test-tube and animal studies report that applying vitamin U directly to wounds may speed wound closure. Moreover, vitamin U appears to protect against burns and other damage caused by UV rays (

Based on these findings, some researchers suggest that certain cosmetics should be formulated with vitamin U.

Yet, a lack of human research means that further studies are necessary.

Folate And Folic Acid

Your body converts folate into folic acid, which has many health benefits. Supplements contain folic acid directly so they are better absorbed by the body than the folate contained in food. The recommended folate intake from food is also known as the dietary folate equivalent .

The vitamin B complex dosage for folate is listed below. Amounts expressed in DFE indicate that folate needs to be consumed from food. Amounts expressed in mcg indicate that folate needs to be taken from supplements.

Infants

  • 0-6 months 65mcg/daily
  • Males and females 14-18 years 400mcg/daily
  • Pregnant females 14-18 years 600mcg/daily
  • Breastfeeding females 14-18 years 500mcg/daily
  • Men and women 18 years and over 400mcg DFE/daily
  • Pregnant women 600mcg DFE/daily
  • Women capable of becoming pregnant 400mcg/daily
  • Pregnant women 600mcg/daily
  • Pregnant women with a previous history of neural tube defects 4mg/daily

The recommended daily vitamin B complex dosage for vitamin B-12 is as follows:

Infants

  • Males and females over the age of 14 2.4mcg/daily
  • Pregnant teens and women 2.6mcg/daily
  • Breastfeeding teens and women 2.8mcg/daily

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Discover The Right Vitamin B Complex Dosage: The Rda For All 8 B Vitamins

Sticking to your recommended vitamin B complex dosage isnt always straightforward.

The vitamin B complex is a group of eight vitamins that play important roles in many body functions. Hitting your daily vitamin B complex dosage is essential for:

  • converting carbohydrates into energy
  • helping oxygen move around your circulatory system
  • the proper functioning of your brain and nervous system
  • keeping your eyes, skin and hair healthy
  • supporting your immune system

Your body cant store most of the B vitamins . This means that you need to regularly consume foods that are rich in B vitamins by eating a balanced diet. Good sources of B complex vitamins include dairy products, nuts and meat. In some cases, taking vitamin B complex tablets might be a good way to hit your daily RDA.

If youre wondering how much vitamin B complex should I take daily, the answer is: it depends. The vitamin B complex RDA varies by vitamin. This article covers the vitamin B complex recommended daily amount for each B vitamin.

The vitamin B complex daily dose of B1 is as follows:

Infants

  • Men 14 years and older 1.2mg/daily
  • Females 14-18 years 1mg/daily
  • Women 18 years and older 1.1mg/daily
  • Pregnant women 1.4mg/daily

The vitamin B complex dosage per day for riboflavin is as follows:

Infants

  • Men 18 years and over 1.3mg/daily
  • Women 18 years and over 1.1mg/daily
  • Pregnant women 1.4mg/daily

For niacin, the recommended daily vitamin B complex dosage is as follows:

Infants

Infants

Infants

What May Interact With This Medication

High Strength Vitamin B Complex

Interactions are not expected.

This list may not describe all possible interactions. Give your health care provider a list of all the medicines, herbs, non-prescription drugs, or dietary supplements you use. Also tell them if you smoke, drink alcohol, or use illegal drugs. Some items may interact with your medicine.

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Side Effects And Risks Of Vitamin B

B vitamins are water-soluble. This means that, most of the time, the body excretes extra B vitamins in the urine.

While a standard dosage does not seem to cause harm, excessively high doses of certain B vitamins can be dangerous. Speak with a clinician before taking very high doses of B-complex supplements.

Possible side effects of B-complex vitamins:

  • High blood sugar. High doses of nicotinic acid, a synthetic form of vitamin B3, can raise blood sugar levels. This can interfere with diabetes medications. People with diabetes or high blood sugar should not take high doses of nicotinic acid .
  • Excess nicotinic acid. Too much nicotinic acid can also cause low blood pressure, fatigue, headaches, rashes, and liver damage.
  • Excess nicotinamide. High doses of nicotinamide, another form of vitamin B3, can cause diarrhea and increased bleeding. This can occur in doses of 500 mg per day. Doses higher than 3,000 mg can cause vomiting and liver damage.
  • Excess folic acid. Taking more than 1,000 mcg of folic acid a day can mask a type of anemia caused by vitamin B12 deficiency.

Taking a high-dose B-complex supplement can also turn the urine bright yellow. This effect is temporary and harmless. Once the kidneys get rid of the extra vitamins, the color will return to normal.

People Taking Certain Medications

Commonly prescribed medications can lead to a deficiency in B vitamins.

For example, proton pump inhibitors, which are medications that lower stomach acid, can decrease the absorption of B12, whereas metformin, a popular diabetes drug, can decrease levels of both B12 and folate (

Summary

Pregnancy, medical conditions, surgeries, genetics, medications, dietary restrictions, and age can all affect how your body absorbs and uses B vitamins.

While certain conditions make it necessary for some people to supplement with B-complex vitamins, research has shown that taking a B vitamin supplement may be helpful even for people who dont have an increased need for these nutrients.

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Food Sources Which Contain Vitamin B Complex:

You can include various food items in your diet, which are a good source of the vitamin B complex. Some of the food items which contain B vitamin complex are meat , poultry, eggs, dairy products, seafood, legumes, seeds, leafy greens, and fortified foods, like cereals and yeast. If one is unable to include these food sources in their daily diet, then they can get vitamin B complex capsules that are available on online stores like HealthKart.

Vitamin B-12 deficiencies can lead to various problems like anemia, dementia, paranoia, and depression.

People Who Are Pregnant Or Nursing

What are the uses of Vitamin B Complex?

During pregnancy, the demand for B vitamins, particularly B12 and folate, grows. This is because they are needed to support fetal development .

In people who are pregnant or breastfeeding or chestfeeding especially those who follow vegetarian or vegan diets supplementing with a B-complex vitamin is crucial.

B12 or folate deficiency during pregnancy or while nursing can lead to severe neurological damage or birth defects in the fetus or infant .

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Daily Recommendations For Vitamin B

Many B-complex supplements contain about 100% of the RDA of each of the eight B vitamins.

However, some contain very high levels of certain B vitamins. Before taking a high-dose supplement, talk with a doctor.

The following are RDAs for each of the B vitamins, in milligrams or micrograms , according to The National Institutes of Health . Older adults may require higher dosages of some B vitamins.

Males
Vitamin B3 or dietary equivalents 16 mg
Vitamin B9 or dietary equivalents 400 mcg

Vitamin B-complex supplements may help with certain health problems. If a person has any of the conditions listed below, they may benefit from taking a supplement that contains B vitamins:

Excessive Folic Acid Intake

Although folic acid is generally considered non-toxic, excessive intakes above 1,000mcg per day over a period of time can lead to malaise, irritability and intestinal dysfunction. The main risk with excessive folate intake is that it can mask a vitamin B12 deficiency, so its best to consume these 2 vitamins within the recommended amounts.

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Summary Of Pantothenic Acid

Pantothenic acid, also known as vitamin B5, plays various important roles in metabolism.

Almost all food contains this vitamin. The best sources include liver, sunflower seeds, mushrooms, root vegetables and whole grains.

Since pantothenic acid is so widespread in foods, deficiency is virtually unknown and is usually only associated with severe malnutrition.

Supplements are safe and do not have any adverse effects. However, very high doses may cause diarrhea and other digestive issues.

Although some people regularly take pantothenic acid supplements, there is currently no strong evidence for their effectiveness in the treatment of diseases in those who get adequate amounts from food.

Vitamin B12 Dosage: How Much Should You Take Per Day

High Strength Vitamin B Complex

Overview

Vitamin B12 is a water-soluble nutrient thats required for many crucial processes in your body.

The ideal dose of vitamin B12 varies based on your gender, age, and reasons for taking it.

This article examines the evidence behind the recommended dosages for B12 for different people and uses.

Vitamin B12 is an essential nutrient that plays a critical role in several of your bodys processes.

Its necessary for proper red blood cell production, DNA formation, nerve function, and metabolism .

Vitamin B12 also plays a key role in reducing levels of an amino acid called homocysteine, high levels of which have been linked to chronic conditions like heart disease, stroke, and Alzheimers .

Additionally, vitamin B12 is important for energy production. However, theres currently no evidence that taking B12 supplements increases energy levels in people who are not deficient in this nutrient .

Vitamin B12 is found mostly in animal products, including meats, seafood, dairy products, and eggs. Its also added to some processed foods, such as cereal and nondairy milk.

Because your body can store B12 for several years, serious B12 deficiency is rare, but up to 26% of the population may have a mild deficiency. Over time, B12 deficiency can lead to complications like anemia, nerve damage, and fatigue.

Vitamin B12 deficiency can be caused by not getting enough of this vitamin through your diet, problems with absorbing it, or taking a medication that interferes with its absorption .

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