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# Liquid Drug Flow Restrictor Guidance
- URL: https://www.fdaweb.com/liquid-drug-flow-restrictor-guidance/
- Published: 2020-03-17T12:00:00.000Z
- Updated: 2026-09-14T16:07:39.000Z
- Author: David McFarland
- Tags: Drugs, #legacy-id-D5146341

FDA has issued a draft guidance, *Restricted Delivery Systems: Flow Restrictors for Oral Liquid Drug Products*, to help manufacturers of oral liquid drug and biological products use restricted delivery systems to limit unintentional ingestion of oral liquid drug products such as oral solution and oral suspension by children. The [document](https://www.fda.gov/media/136170/download?ref=fdaweb.com) includes Introduction, Background, Discussion, General Recommendations, and an Appendix.