Answer by
MattK (1713)
Lipoflavinoids are a type of multivitamin which can cause nausea, headache, gastrointestinal problems including upset stomachs, strange tastes in your mouth, sometimes called metallic. Worse still is the fact that lipoflvinoids have the propensity to interact with many prescription and over the counter medications. Some antibiotics and anti-hypertensive drugs have been shown to interfere.