After many years of "ethical" promotion, Glaxo's syrupbased tonic, Minadex, was going OTC since the company's management felt that this would help increase sales. A purchase proposition was required to build up an advertising campaign around it. Competitive claims were analyzed by the agency and it was decided to place Minadex as an "iron" tonic in an otherwise crowded market of health and energy products, tonics, multivitamins and mineral tonic syrups. The case records the findings of the Minadex ad pretest which supplied useful data on the levels of consumer awareness regarding vitamins and minerals.