The riboflavin coenzymes are Flavin Mono Nucleotide (Riboflavin-5-Phosphate) & Flavin Adenine Dinucleotide (FAD). Contra-Indications If pregnant or breast feeding, consult your health care practitioner before using. For more information on this product contact your healthcare practitioner. This product should not be used as a substitute for a varied diet. Directions Recommended dose 1 capsule per day with a meal. Do not exceed this recommended dose unless prescribed by your practitioner.