Pruritus associated with niacinamide.
D000368:Aged; D006801:Humans; D008297:Male; D009536:Niacinamide / Q000009:adverse effects*; D009539:Nicotinic Acids / Q000009:adverse effects*; D011537:Pruritus / Q000139:chemically induced* / Q000150:complications; D013405:Suicide; D013587:Syphilis / Q000150:complications; D013733:Testicular Diseases / Q000150:complications
D009539:Nicotinic Acids; D009536:Niacinamide