Fourts B is an allopathic medicine The key ingredients of Fourts B are Folic Acid, Biotin, Cyanocobalamin, L-Glutamate, Glycine, Niacinamide, Vitamin B6 (Pyridoxine), Minerals, Inositol. The correct dosage of Fourts B depends on the patient's age, gender, and medical history. This information has been provided in detail in the dosage section.