The defenses used in a products liability case are: assumption of a risk, intervening cause, contributory negligence, comparative fault, exclusions of liability assumption of a risk as risks such as treatments with radiation. The intervening cause is an intravenous solution contaminated by the negligence of the user of the product rather than the manufacturer. Contributory negligence is the use of a product in a way that was not intended. Comparative vault is damage resulting from the simultaneous negligence of both. The producer and the plaintiff. Disclaimers include manufacturers, inserts and warnings regarding the use of them