“A P21 substance record means P21 is FDA-approved.”

Misleading

This statement leaves out a limit that changes its meaning.

FDA says a Unique Ingredient Identifier, or UNII, helps identify a substance. It does not mean that FDA reviewed or approved a drug. No FDA-approved P21 product was found under the reviewed names.

What this answer is based on

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

Limits of this answer

United States drug-approval status as checked for P21, P021, and P-21 on August 30, 2026. 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

Whether a specific product has an approval or another official status.