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# Draft Guide on Olodaterol HCl; Tiotropium Bromide
- URL: https://www.fdaweb.com/draft-guide-on-olodaterol-hcl-tiotropium-bromide/
- Published: 2021-07-27T12:00:00.000Z
- Updated: 2026-09-14T17:08:01.000Z
- Author: David McFarland
- Tags: FDA Policy/General, #legacy-id-D5149792

*Federal Register* notice: FDA has made available a draft guidance entitled “Draft Guidance for Olodaterol Hydrochloride; Tiotropium Bromide.” The document provides product-specific recommendations on, among other things, the information and data needed to demonstrate bioequivalence to support ANDAs for olodaterol hydrochloride; tiotropium bromide inhalation sprays. To view the notice, click [here](https://public-inspection.federalregister.gov/2021-16046.pdf?ref=fdaweb.com).