21 CFR Part 201 · Labeling

21 CFR 201.115

New drugs or new animal drugs

21 CFR 201.115 is the regulation titled “New drugs or new animal drugs” in 21 CFR Part 201, Labeling. Since 2021, 134 FDA warning letters have cited it.

Letters citing it
134 since 2021
Jan 1 to Oct 30, 2026
26 against 32 on the same dates in 2025
Most often cited with
21 CFR 201.5, in 90 letters
Closed out
5% of these letters have a published close-out
See the 134 letters citing 21 CFR 201.115 →

Letters citing it, by year issued

All are drug letters. 2026 runs to Oct 30, 2026. Pick a year to see its letters.

  1. 202021
  2. 112022
  3. 152023
  4. 92024
  5. 532025
  6. 262026

What FDA writes when it cites it

The finding headings that cite 21 CFR 201.115 most often, as written in the letters.

  • 9 lettersBecause the aforementioned drugs are prescription drugs intended for conditions that are not amenable to self-diagnosis and treatment by a layperson, adequate directions cannot be written such that a layperson can use…
  • 6 lettersBecause the aforementioned drug is a prescription drug intended for conditions that are not amenable to self-diagnosis and treatment by a layperson, adequate directions cannot be written such that a layperson can use…
  • 5 lettersBecause the aforementioned drugs are prescription drugs intended for conditions that are not amenable to self-diagnosis and treatment by a layperson, adequate directions cannot be written such that a layperson can use…

The regulation

Read the text of 21 CFR 201.115 (eCFR, as of Sep 1, 2026)

A new drug shall be exempt from section 502(f)(1) of the act:

(a) To the extent to which such exemption is claimed in an approved application with respect to such drug under section 505 or 512 of the act or an index listing with respect to such drug under section 572 of the act; or

(b) If no application under section 505 or 512 of the act is approved and no request for addition to the index is granted under section 572 with respect to such drug but it complies with section 505(i), 512(j), or 572(g) of the act and regulations thereunder.

[40 FR 13998, Mar. 27, 1975, as amended at 72 FR 69119, Dec. 6, 2007]

Text from eCFR as of Sep 1, 2026.

Cited alongside it

Regulations that appear in the same letters as 21 CFR 201.115.

Latest letters citing it

The 3 letters citing 21 CFR 201.115 that FDA posted most recently.

See the 134 letters citing 21 CFR 201.115 →
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