Niacin (Vitamin B 3) (Systemic)

Before Using This Dietary Supplement

If you are taking this dietary supplement without a prescription, carefully read and follow any precautions on the label. For niacin or niacinamide, the following should be considered:

Allergies - Tell your health care professional if you have ever had any unusual or allergic reaction to niacin or niacinamide. Also tell your health care professional if you are allergic to any other substances, such as foods, preservatives, or dyes.

Pregnancy - It is especially important that you are receiving enough vitamins when you become pregnant and that you continue to receive the right amount of vitamins throughout your pregnancy. The healthy growth and development of the fetus depend on a steady supply of nutrients from the mother. However, taking large amounts of a dietary supplement in pregnancy may be harmful to the mother and/or fetus and should be avoided.

Breast-feeding - It is especially important that you receive the right amounts of vitamins so that your baby will also get the vitamins needed to grow properly. However, taking large amounts of a dietary supplement while breast-feeding may be harmful to the mother and/or baby and should be avoided.

Children - Problems in children have not been reported with intake of normal daily recommended amounts.

Older adults - Problems in older adults have not been reported with intake of normal daily recommended amounts.

Medicines or other dietary supplements - Although certain medicines or dietary supplements should not be used together at all, in other cases they may be used together even if an interaction might occur. In these cases, your health care professional may want to change the dose, or other precautions may be necessary. Tell your health care professional if you are using any other dietary supplement or any prescription or nonprescription (over-the-counter [OTC]) medicine.

Other medical problems - The presence of other medical problems may affect the use of niacin or niacinamide. Make sure you tell your health care professional if you have any other medical problems, especially:

• Bleeding problems or
• Diabetes mellitus (sugar diabetes) or
• Glaucoma or
• Gout or
• Liver disease or
• Low blood pressure or
• Stomach ulcer - Niacin or niacinamide may make these conditions worse