Table 4

Adverse events reported

Adverse Event
Niacin (n = 33)
Placebo (n = 35)
P-value

Composite of pruritus (head. neck, extremities or torso):
25 (75%)
0
<0.001
Composite of tingling (head, torso):
10 (30%)
0
<0.001
Unpleasant warmth or flushing:
33 (100%)
1
<0.001
Nausea
10 (30%)
1 (3%)
.005
Vomiting
4 (12%)
0
.005
Stomach cramps
2 (6%)
0
NS
Vertigo
4 (12%)
0
.05
Difficult breathing
2 (6%)
0
NS
Chills*
17 (52%)
0
< .0001
Pass stool
3 (9%)
0
NS
Heart palpitations
5 (15%)
0
.0228
Other
4 (12%)
1 (3%)
NS

* Chills are defined as shivering accompanied by the sensation of coldness and pallor of the skin.

Mills et al. BMC Clinical Pharmacology 2003 3:4   doi:10.1186/1472-6904-3-4