
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN: 9780134580999
Author: Elaine N. Marieb, Katja N. Hoehn
Publisher: PEARSON
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- Time-release” drugs work by releasing a drug to the body at a constant rate such that the drug concentration at one time is not large enough as to cause harmful side effects OR not low enough to the point where it is an ineffective therapeutic. A design schematic of a time-release pill is shown below. Explain how it works from an osmotic pressure standpoint.

Transcribed Image Text:Elastic impermeable membrane
Saturated
Semipermeable
membrane
Nacl solution
Drug
Rigid wall containing
tiny holes
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