Side effects of Vitamin B3/4:  

.

潮紅Flushing (Vit B3),

惡心nausea,

嘔吐vomiting,

頭痛headaches,

高血糖high blood sugar,

高尿酸high uric acid,

黃疸jaundice,

盜汗sweating,

皮疹skin rash,

胃酸增加raised stomach acid,

失眠insomnia,

關節痛joint pains,

鈣流失calcium loss,

增加膽鹼需求increased choline requirements