Inactive Ingredients, Active Risks

You’ve got a headache, so you take some acetaminophen. But, you’re not only swallowing the active ingredient—it’s just a small component of each tablet. For most medicines, up to 90% of each dose is made up of excipients: substances added to improve formulation, performance, taste, appearance, color, or even consumer appeal.

read more in www.scientificamerican.com