Why Is Insulin Only Given by Injection and Not as an Oral

question 23

Multiple Choice

Why is insulin only given by injection and not as an oral drug?

• A)Injected insulin works faster than oral drugs to lower blood glucose levels.
• B)Insulin is a small protein that is destroyed by stomach acids and intestinal enzymes.
• C)Insulin is a "high-alert drug" and be easily be abused if it were available as an oral agent.
• D)Oral insulin has a high "first pass loss" rate in the liver and would require very high dosages to be effective.

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