Piperonyl Butoxide; Pyrethrins

Sold as Rid Mousse. Every FDA application for this active ingredient.

As of Nov 15, 2026, FDA lists 1 application for Piperonyl Butoxide; Pyrethrins (sold as Rid Mousse), first approved Mar 7, 2000, with 0 new uses approved and 0 published complete response letters.

First approved: Mar 7, 2000
Applications: 1
New uses approved: 0
Complete response letters: 0

Clinical Trials

2 open or ongoing studies name this ingredient as an intervention, including as a comparator; newest first. See all


Safety and Efficacy of Head-lice Treatments Elimax Green Lotion and Walgreens Lice Killing ShampooHead Lice · Oystershell NV	Not applicable	Recruiting	Sep 24, 2025
Net Transition Initiative: Efficacy of Two Next-generation Nets for Control of Malaria in Cote d'IvoireMalaria · London School of Hygiene and Tropical Medicine	Not applicable	Active, not recruiting	Apr 3, 2023

Applications

NDAs, BLAs and generic ANDAs for this ingredient, oldest first; each opens its full history

Approved	Application	Sponsor	Supplements	Marketing
Mar 7, 2000	Rid MousseNDA 21043 · New dosage form	Bayer Healthcare LLC	5	Discontinued

Applications, approvals and products come from FDA's Drugs@FDA data files, refreshed weekly, grouped by active ingredient as FDA spells it. Complete response letters are FDA's published letters. Medicare spending is CMS's Part D and Part B dashboard, matched to this ingredient by generic name; shortages are FDA's shortage list, matched by application number; clinical trials are ClinicalTrials.gov studies naming the ingredient as an intervention, refreshed daily; safety programs are FDA's REMS list, matched by application number or, for shared programs, by ingredient. Drugs@FDA