Metric System and Potency Expression Policy
METRIC SYSTEM AND POTENCY EXPRESSION. Whenever possible, CDER should use the metric system to express potency. Potencies of 10-2 or less should be expressed as the next lowest value (e.g., 0.01 GM would become 10 MG), and potencies of 103 or greater should be expressed as the next highest value (e.g., 1000 MG would become 1 GM).
CDER Approval Date: June 14, 1994.