MediHerb Rehmannia Complex 60 Tablets: Traditionally used in Herbal Medicine to help relieve headaches. Non-Medicinal Ingredients: Calcium phosphate dibasic, Cellulose, Hypromellose, Magnesium stearate, Maltodextrin, SilicaSodium starch glycolate. Dosage: Adults take 1 tablet 2-4 times daily.