“In FDA’s record, P21, P021, and P-21 are names for the same chemical record.”

Supported with scope

The reviewed evidence supports this exact statement only in the situation described below.

Yes. FDA lists P21 and P021 as names for the P-21 chemical record. This name match does not prove that a sold product has the same contents or quality.

What this answer is based on

This answer uses an official regulator record or a specific product label.

Limits of this answer

The FDA chemical identity record; this does not establish drug approval, product quality, or human benefit. These limits show which substance, product, people, use, place, and time the answer covers. A different product or situation can have a different answer.

Topic

How a substance changed the body or a lab measurement. This may not show a health benefit.