2A Routes of administration

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Last updated 6:26 PM on 5/23/26
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7 Terms

1
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Benefits of oral administration route

Safest

Convenient

Economical

2
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Negative of oral administration of a drug

Difficult to predict bioavailability

3
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First pass metabolism

Allows direct movement to liver if toxic, makes dosing oral drugs difficult

4
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Benefits of IV injection

Most rapid, directly into the bloodstream

Precise

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Negatives of IV injection

Most dangerous

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Benefits and negatives of inhaling drugs

(+) Large surface area of lungs allows for rapid adsorption into the blood

Blood from lungs has a short distance to the brain

(-) drugs that are inhaled are more prone to abuse

7
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What route of administration bypasses the blood brain barrier

Epidural , it is also not reversible and can only be administered by an anesthesiologist