Which term describes the action by which a drug is released throughout the body?

Which term describes the action by which a drug is released throughout the body?

• A. Absorption
• B. Distribution
• C. Dosage
• D. Dose

Answer: (B)

Think of how a drug travels once it’s in the bloodstream. After entering circulation, the drug is carried to all parts of the body, reaching various tissues and organs. This spreading through the body is called distribution. It explains how the drug gets to target areas like the brain, liver, or muscles. Absorption is the process of getting the drug into the bloodstream from the site of administration, not how it disperses through the body. Dose and dosage refer to how much drug is given, not its movement through the body. So distribution best describes the action by which a drug is released throughout the body.

Think of how a drug travels once it’s in the bloodstream. After entering circulation, the drug is carried to all parts of the body, reaching various tissues and organs. This spreading through the body is called distribution. It explains how the drug gets to target areas like the brain, liver, or muscles. Absorption is the process of getting the drug into the bloodstream from the site of administration, not how it disperses through the body. Dose and dosage refer to how much drug is given, not its movement through the body. So distribution best describes the action by which a drug is released throughout the body.