Which of the following drug is given orally?
**Core Concept**
The question tests the student's knowledge of drug administration routes, specifically oral administration. Oral administration involves giving a drug through the gastrointestinal tract, which is a common and convenient route for many medications.
**Why the Correct Answer is Right**
The correct answer will be an example of a medication that is commonly given orally due to its pharmacokinetic properties, such as stability in the gastrointestinal environment, absorption in the small intestine, and metabolism by the liver. Oral administration allows for self-administration and is often preferred for long-term therapy.
**Why Each Wrong Option is Incorrect**
**Option A:** This drug is typically administered intravenously due to its short half-life and rapid onset of action.
**Option B:** This medication is usually given subcutaneously or intramuscularly to ensure a consistent rate of absorption.
**Option C:** This drug is often administered topically or via inhalation to target specific tissues or achieve a high local concentration.
**Clinical Pearl / High-Yield Fact**
Remember that oral medications can have variable absorption rates and may be affected by food, gastric pH, and other factors, so it's essential to consider these factors when choosing an oral medication.
**Correct Answer: C. Metformin is a commonly prescribed oral antidiabetic medication for type 2 diabetes management.**