325412 Pharmaceutical Preparation Manufacturing This U.S. industry comprises establishments primarily engaged in manufacturing in-vivo diagnostic substances and pharmaceutical preparations (except biological) intended for internal and external consumption in dose forms, such as ampoules, tablets, capsules, vials, ointments, powders, solutions, and suspensions. The data published with NAICS code 325412 include the following SIC industries: 2834 Pharmaceutical preparations 2835 Diagnostic substances (pt)