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Questions and Answers
______ Drug – refers to the delivery of the drug according to the predictable rate or specific times of release. It maintains drug release over sustained period of time at a nearly constant rate. It prolongs action and maintaining levels within the “therapeutic window” to avoid potential hazardous peaks in drug concentration following ingestion or injection and to maximize therapeutic efficiency. [Ex. Pills, capsules, injectables, drug carriers, gels, implants and devices (vaginal rings and contraceptive implants), transdermal patches, and cosmetic applications (odor or flavor release)]
Controlled-Release
______-Release Drug – refers to the delivery of drugs with a delay after its administration for a prolonged period of time. [Ex. ER, XL, XR (extended-release drugs)]
Modified
______-Release Drug – maintains drug release over a sustained period of time but not a nearly constant rate.
Sustained
History – In 1938, ______ and tried it to a patient and found out the delayed effects of the drug when coated. Since then, the science of controlledrelease drug products has developed in the recent years.
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Final-Modified Release Form of Preparations ______
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