I found these in my pill box at work and was going to give them to a co-worker as a pain reliever but could not find any information about them online. I went home and found out what they were - Chest Congestion and Cough Relief Tablets under the brand name of "Good Neighbor Pharmacy". The active ingredients are Dextromethorphan HBr 20 mg (Cough Suppressant) and Guaifenesin 400 mg (Expectorant).