Manufacturers will most likely need to give a sufficient warning of the potential dangers of which of the following products? Multiple Choice Razor blade manufacturers must print a warning that the razor blade may cut those who use the razor. Manufacturers of a headache medicine that contains an ingredient, which can be used for criminal purposes, must warn all users of this potential criminal use and consequences of that particular ingredient. Manufacturers of products designed to kill insects and pests that targets crops need to give a warning that these products are toxic.. A company that produces nails to be used in construction are required to give a warning that the nail can stab people.