3. Astelin nasal spray contains 0.1% azelastine hydrochloride and 400 µg/mL of benzalkonium chloride as a preservative. A container is capable of delivering 200 metered sprays of 0.137 mL each. The percent concentration of benzalkonium chloride in the preparation is ________ %, and this is equivalent to a ratio strength of 1:2500 w/v. True or False?

3. Astelin nasal spray contains 0.1% azelastine hydrochloride and 400 µg/mL of benzalkonium chloride as a preservative. A container is capable of delivering 200 metered sprays of 0.137 mL each. The percent concentration of benzalkonium chloride in the preparation is ________ %, and this is equivalent to a ratio strength of 1:2500 w/v. True or False?

Biomedical Instrumentation Systems

1st Edition

ISBN:9781133478294

Author:Chatterjee

Publisher:Chatterjee

Chapter5: Biomedical Electronics: Digital

Section: Chapter Questions

Problem 5Q

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