<P> Some of the main products that are exempted from the PPPA include the following: </P> <Ul> <Li> Powdered unflavored aspirin </Li> <Li> Effervescent aspirin </Li> <Li> Sublingual nitroglycerin </Li> <Li> Oral contraceptives </Li> <Li> Hormone replacement therapy </Li> <Li> Powdered iron preparations </Li> <Li> Effervescent acetaminophen </Li> <Li> Hydrocarbon - containing products where the liquid cannot flow freely </Li> </Ul> <Li> Powdered unflavored aspirin </Li> <Li> Hormone replacement therapy </Li>

Which of the following is exempt from the poison prevention packaging act of 1970