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Table 1 Warnings & Precautionary Statements of Niacin Supplements from Different Vitamin Companies

From: The safety of over-the-counter niacin. A randomized placebo-controlled trial [ISRCTN18054903]

Product

Warnings & Precautionary Statements

Product 1. 500 mg caplets

Niacin may cause flushing, itching or burning sensations of the skin within twenty minutes after administration. Individuals with a history of ulcer, gallbladder or liver disease should consult their physician before use.

Product 2. 500 mg tablets

Temporary flushing, itching or warming of the skin may occur. Do not use in cases of gout, diabetes, liver dysfunction or pregnancy.

Product 3. 500 mg tablets

It is important to consult your physician before taking any nicotinic acid product. Do not use in case of pregnancy, gout, diabetes, ulcers or liver dysfunction without medical supervision. Temporary flushing, itching or warming of the skin may occur.

Product 4. 500 mg tablets

May cause mild flushing, itching or burning sensation of the skin within twenty minutes after administration. Those individuals with a history of ulcer, gallbladder or liver disease should consult their physician before taking these tablets.

Product 5. 500 mg tablets

May cause some flushing, itching or burning skin sensations. In case of a history of ulcers, gallbladder or liver disease, consult a physician.