Last night I took niacin, (1) capsule 250 mg and today I woke up with vary bad alergy (sinus, headeck), I read in internet that niacin can make the alergy syntoms more severe, see note below:
Allergies: Niacin and niacinamide can make allergies more severe because they cause histamine, the chemical responsible for allergic symptoms, to be released. .
Is anybody else experiencing the same problem?