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phenobarbital sodium injection — FDA Complete Response Letter (NDA 218258)

Issued to Hikma Pharmaceuticals USA, Inc.. Application reviewed but not approved; deficiencies must be corrected.

Application

NDA 505b1 • 218258

Product

phenobarbital sodium injection

Company

Hikma Pharmaceuticals USA, Inc.

Review center

CDER

Stage

Final Decision

Response due

January 22, 2025

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What did FDA decide for phenobarbital sodium injection?

Source facts and Assyro context are separated so you can scan the action quickly without treating analysis as an FDA conclusion.

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Source facts

FDA's complete response letter contains source-text evidence related to Labeling, packaging, and proprietary name, Clinical efficacy and substantial evidence, Safety and adverse events, Facility inspection and CGMP compliance. Theme counts identify where the letter discusses a topic; they do not replace review of the exact redacted letter.

Key details in this letter

  • 1Labeling, packaging, and proprietary name: 21 source-text matches.
  • 2Clinical efficacy and substantial evidence: 6 source-text matches.
  • 3Safety and adverse events: 4 source-text matches.
  • 4Facility inspection and CGMP compliance: 2 source-text matches.
Labeling, packaging, and proprietary nameClinical efficacy and substantial evidenceSafety and adverse eventsFacility inspection and CGMP compliance

Suggested next step

Review the exact redacted FDA letter and address each stated deficiency before resubmission.

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Built from structured FDA metadata and deterministic source-text signals. Topic matches are navigation aids, not legal or regulatory conclusions. Verify material decisions against the original FDA document.

FDAPDFUpdated Jul 30, 2026

FDA source document

Read the full FDA complete response letter (PDF)

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Common questions about the phenobarbital sodium injection complete response letter

What does this complete response letter mean for phenobarbital sodium injection?

Application reviewed but not approved; deficiencies must be corrected. Requires resubmission addressing deficiencies. FDA issued this letter to Hikma Pharmaceuticals USA, Inc. on January 23, 2024.

What is NDA 218258?

NDA 218258 is the application under which FDA issued this complete response letter for phenobarbital sodium injection to Hikma Pharmaceuticals USA, Inc.. It was reviewed by FDA CDER. The letter is dated January 23, 2024.

What happens after an FDA complete response letter?

FDA will not approve the application in its present form. The sponsor can resubmit after addressing every deficiency listed in the letter — which starts a Class 1 (two-month) or Class 2 (six-month) resubmission review clock — withdraw the application, or request an opportunity for a hearing.