Final answer:
Orally is the primary route for drug administration, but other routes like parenteral are used for specific cases. Different drug administration routes have varying absorption rates and effectiveness. Consideration of route of administration is crucial for optimal drug therapy outcomes.
Explanation:
Orally is the preferred route of administration for drugs that can be taken through the mouth. Some drugs may not be easily absorbed through the gastrointestinal tract, leading to the need for alternative routes like parenteral (intravenous or intramuscular) administration in healthcare settings for higher plasma levels. Other routes include rectal, sublingual, and topical preparations for specific drug administration needs.
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