Vitamin B-Complex Multivitamins: Side Effects, Uses, Warnings

Side Effects

Mild upset stomach or flushing may occur. These effects are usually temporary and may disappear as your body adjusts to this product. If any of these effects last or get worse, tell your doctor or pharmacist promptly.

If your doctor has directed you to use this medication, remember that your doctor has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.

A very serious allergic reaction to this drug is rare. However, get medical help right away if you notice any symptoms of a serious allergic reaction, including: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.

This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.

In the US – Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088 or at www.fda.gov/medwatch.

In Canada – Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.

How long does it take for this medicine to take effect?

The onset of physiological effects from taking a Vitamin B-Complex with Vitamin C tablet can vary, as these vitamins support ongoing metabolic processes and general health. While individual responses can vary, some people may notice improvements in energy levels and overall well-being within a few days to weeks of consistent supplementation, particularly if they had deficiencies in these vitamins beforehand.

How long do the effects of this medicine last?

The effects of these vitamins are sustained with continuous daily intake. B vitamins and Vitamin C are water-soluble, meaning they are not stored in large amounts in the body and excess amounts are excreted in urine. Therefore, regular daily intake is necessary to maintain adequate levels and associated health benefits.

Is it safe to consume alcohol while taking this medicine?

Moderate alcohol consumption is unlikely to directly interfere with the efficacy of Vitamin B-Complex and Vitamin C tablets. However, excessive alcohol intake can lead to nutrient deficiencies, particularly of B vitamins, and may increase the body’s requirements for these nutrients. Alcohol can also impair immune function, counteracting some benefits of Vitamin C.

Is this a habit forming medicine?

Vitamin B-Complex and Vitamin C tablets are not habit-forming and do not have the potential for abuse or dependence. They are used to supplement the diet and ensure adequate intake of these essential nutrients.

Can this medicine be taken during pregnancy?

Vitamin B-Complex and Vitamin C are essential nutrients that play critical roles in fetal development and maternal health. Supplementation during pregnancy can help meet the increased nutritional requirements. However, it is important to adhere to recommended dosages and consult a healthcare provider before starting any supplementation during pregnancy to avoid excessive intake, which could be harmful.

Can this medicine be taken while breast-feeding?

Supplementation with Vitamin B-Complex and Vitamin C is generally considered safe during breastfeeding and can help ensure that nursing mothers meet their nutritional needs. These nutrients are important for the health of the mother and are passed to the infant through breast milk, supporting the infant’s development. As with pregnancy, it is advisable to consult a healthcare provider to ensure supplementation is appropriate and does not exceed recommended amounts.

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.

How to use Vitamin B-Complex With VIT C Tablet Multivitamins

Take this medication by mouth, usually once daily or as directed. Follow all directions on the product package. If you have any questions, ask your doctor or pharmacist.

If you are taking a brand that contains vitamin C, take this medication by mouth with a full glass of water (8 ounces/240 milliliters) unless your doctor directs you otherwise.

If you are taking chewable tablets, chew the tablet thoroughly before swallowing.

If you are taking extended-release capsules, swallow them whole. Do not crush or chew extended-release capsules or tablets. Doing so can release all of the drug at once, increasing the risk of side effects. Swallow the whole tablet without crushing or chewing.

If you are taking a liquid product, use a medication-measuring device to carefully measure the dose. Do not use a household spoon. Some liquid products need to be shaken before each dose. Some products that contain vitamin B12 need to be placed under the tongue and held there before swallowing. Follow label directions carefully to get the most benefit.

Take this medication regularly in order to get the most benefit from it. To help you remember, take it at the same time each day.

Precautions

Before taking this product, tell your doctor or pharmacist if you are allergic to any of its ingredients; or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.

If you have any of the following health problems, consult your doctor or pharmacist before using this product: diabetes, liver problems, vitamin B12 deficiency (pernicious anemia).

Chewable tablets or liquid products may contain aspartame. If you have phenylketonuria (PKU) or any other condition that requires you to restrict your intake of aspartame (or phenylalanine), consult your doctor or pharmacist about using this drug safely.

Liquid forms of this product may contain sugar and/or alcohol. Caution is advised if you have diabetes, alcohol dependence, or liver disease. Ask your doctor or pharmacist about using this product safely.

Before having surgery, tell your doctor or dentist about all the products you use (including prescription drugs, nonprescription drugs, and herbal products).

Tell your doctor if you are pregnant before using this medication. This product is safe to take during pregnancy when used as directed. Certain spinal cord birth defects may be prevented by maintaining adequate amounts of folic acid during pregnancy. Consult your doctor or pharmacist for details.

This product passes into breast milk. While there have been no reports of harm to nursing infants, consult your doctor before breast-feeding.

Overdose

If someone has overdosed and has serious symptoms such as passing out or trouble breathing, call 911. Otherwise, call a poison control center right away. 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.

Keep all medical and lab 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.

If you are taking this product on a regular schedule and miss a dose, take it as soon as you remember. If it is near the time of the next dose, skip the missed dose. Take your next dose at the regular time. Do not double the dose to catch up.

Refer to storage information printed on the package. If you have any questions about storage, ask your pharmacist. Keep all medications away from children and pets.

Do not flush medications down the toilet or pour them into a drain unless instructed to do so. Properly discard this product when it is expired or no longer needed. Consult your pharmacist or local waste disposal company.

Interactions

Drug interactions may change how your medications work or increase your risk for serious side effects. This document does not contain all possible drug interactions. Keep a list of all the products you use (including prescription/nonprescription drugs and herbal products) and share it with your doctor and pharmacist. Do not start, stop, or change the dosage of any medicines without your doctor’s approval.

Some products that may interact with this drug are: altretamine, cisplatin, certain antibiotics (such as chloramphenicol), certain anti-seizure drugs (such as phenytoin), levodopa, other vitamin/nutritional supplements.

This product may interfere with certain lab tests (such as urobilinogen, intrinsic factor antibodies), possibly causing false test results. Make sure lab personnel and all your doctors know you use this product.