Subcutaneous administration

Subcutaneous administration is a method of drug administration where the drug is injected into the subcutaneous tissue, which is the layer of tissue just beneath the skin. This method is often used for medications that need to be absorbed slowly and consistently over a period of time.

Infusion

Subcutaneous infusion, also known as hypodermoclysis, is a method of administration where fluids are injected into the subcutaneous tissue. This method is often used for continuous drug administration, hydration, or when intravenous access is not available or not feasible.

Procedure

The procedure for subcutaneous infusion involves inserting a needle or catheter into the subcutaneous tissue, usually in the upper arm, thigh, or abdomen. The needle or catheter is then connected to a bag containing the fluid to be infused. The fluid is slowly infused into the tissue over a period of time, usually several hours.

Uses

Subcutaneous infusion is used for a variety of purposes. It is often used for the administration of insulin in patients with diabetes, as it allows for a slow and steady absorption of the drug. It is also used for the administration of pain medication, antiemetics, and other drugs that need to be absorbed slowly and consistently. In addition, it is used for hydration in patients who are unable to drink sufficient fluids, or in patients who are palliative and require fluid for comfort.

Advantages and Disadvantages

The main advantage of subcutaneous infusion is that it allows for a slow and steady absorption of drugs, which can provide a more consistent effect than other methods of administration. It is also less invasive than intravenous administration, and can be done at home with minimal training.

However, subcutaneous infusion also has some disadvantages. It can cause discomfort and bruising at the injection site, and there is a risk of infection if the site is not properly cleaned and cared for. In addition, some drugs cannot be administered subcutaneously, as they may cause irritation or damage to the tissue.

See also

• Intravenous therapy
• Intramuscular injection
• Drug administration

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  Insulin pump with infusion set

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  Needle insertion angles

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  Subcutaneous injection sites