Explanation: Intravenous administration refers to delivering medication directly into a vein. This route allows for rapid absorption of the drug into the bloodstream.

Explanation: Absorption is the process by which a drug enters the bloodstream after administration. It can occur through various routes such as oral, inhalation, or topical application.

Explanation: Topical medications are applied directly to the skin or mucous membranes. Eye drops, which are administered in the eye, are an example of topical medication.

Explanation: Excretion is the process by which a drug or its metabolites are eliminated from the body, typically through urine, feces, or sweat.

Explanation: Inhalation is a route of drug administration where the medication is delivered directly into the lungs through inhalers or nebulizers.

Explanation: Distribution refers to the movement of a drug from the bloodstream to the tissues and organs of the body after absorption.

Explanation: The trade name refers to the brand name of a drug, which is given by the pharmaceutical company marketing the product.

Explanation: Pharmac- is the root word which refers to medicine, -ology is the suffix which indicates the study of a certain major. Therefore, pharmacology is the branch of science that deals with the study of drugs and their effects on the body.

Explanation: Sublingual administration refers to placing medication under the tongue, where it is absorbed through the mucous membranes.

Explanation: PRN is derived from Latin and means as needed or when necessary.

Explanation: Side effects are unintended effects of a medication that occur in addition to the desired therapeutic effects. They can be mild or severe and vary from person to person.

Explanation: A contraindication is a specific circumstance or condition in which the use of a particular medication may be harmful or unsafe. It is important to consider contraindications before administering a drug.

Explanation: Tolerance is the decreased response to a medication or a need for higher doses to achieve the same therapeutic effect. It can develop with prolonged use of certain medications.

Explanation: Compliance refers to a patient's adherence to a prescribed medication or treatment plan, including taking medications as directed, following dosing schedules, and making lifestyle modifications as recommended.

Explanation: A regimen refers to the prescribed schedule and dosing instructions for a medication, including the frequency, duration, and specific instructions for taking the medication.

Explanation: Addiction refers to a physical or psychological dependence on a drug, characterized by compulsive drug-seeking behavior, loss of control, and withdrawal symptoms upon discontinuation.

Explanation: Drug interaction refers to the effects that occur when two or more drugs interact with each other in the body, potentially altering their effectiveness or causing adverse effects.

Explanation: PO is an abbreviation derived from Latin and means by mouth or orally.

Explanation: OTC refers to medications that can be purchased without a prescription, directly from a pharmacy or store.

Explanation: Intramuscular administration refers to injecting drugs or fluids directly into muscles.