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Progressive Laboratories, Niacin, Sustained Release, 500 mg, 100 Tablets (Discontinued Item)

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The item is currently out of stock and replenishment is unconfirmed.

Out of Stock - Discontinued
  • Product Code: PRG-00435
  • UPC Code: 351821004358
  • Package Quantity: 100 Tablets
  • Dimensions: 1.9 x 1.9 x 3.5 in, 0.2 lbs (0.09 kg)
Product Overview


  • Since 1972
  • Dietary Supplement

Formulated to release part of the niacin quickly, with the remainder being released over several hours.

Progressive Laboratories Inc. is GMP Registered by NSF.

Suggested Use

One tablet one to four times daily, or more, as directed by a doctor.

Other Ingredients

Carnauba wax, magnesium stearate, croscarmellose sodium.


Tamper evident band around cap and seal on bottle. Do not use if either seal is broken or missing. Keep out of reach of children.

Notice: Niacin may produce flushing, tingling, itching and feeling of warmth in certain individuals, which under normal continuous use will disappear. However, if conditions persist, consult a doctor.

Supplement Facts
Serving Size: 1 Tablet
  Amount per Serving % Daily Value
Niacin (B-3/Nicotinic Acid) 500 mg 2500%