Parenteral administration

Parenteral administration refers to the non-oral administration of medication. This method bypasses the digestive system, introducing substances directly into the body. Parenteral administration can be performed in various ways, including intravenous, intramuscular, and subcutaneous injection.

Types of Parenteral Administration

Intravenous Administration

Intravenous administration involves injecting a substance directly into the bloodstream via the veins. This method allows for immediate effect and precise control over dosage.

Intramuscular Administration

Intramuscular administration involves injecting a substance into a muscle. The substance is then absorbed into the bloodstream. This method is often used for vaccines and medications that need to be absorbed slowly.

Subcutaneous Administration

Subcutaneous administration involves injecting a substance into the layer of skin directly below the dermis and epidermis. This method is often used for medications that need to be absorbed slowly.

Advantages and Disadvantages

Parenteral administration has several advantages, including rapid onset of action and bypassing the first-pass effect. However, it also has disadvantages, such as potential for infection and the need for trained personnel to administer injections.

See Also

• Oral administration
• Topical administration
• First-pass effect