The main advantages of the oral route of drug administration over other routes are its non-invasiveness, patient compliance and convenience of drug administration.
A drug is any chemical substance that, when eaten, induces a change in the physiology or psychology of an organism. Food and substances that give nutritional assistance are often distinguished from drugs. Drugs can be consumed through inhalation, injection, smoking, ingestion, absorption through a patch on the skin, suppository, or dissolving beneath the tongue.
A drug is a chemical substance with a recognized structure that, when delivered to a living creature, exerts a biological effect.
A pharmaceutical drug, often known as a medication or medicine, is a chemical compound that is used to treat, cure, prevent, or diagnose a disease, or to improve health.
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