How to Give a Subcutaneous Injection

This guide explains how to give a subcutaneous (sub-Q) injection at home. Subcutaneous means "below the skin," and this type of injection delivers medicine into the fatty tissue just beneath the skin surface. Follow the steps below in order to prepare your supplies, draw up your medication, administer the injection safely, and dispose of used materials correctly.

Purpose

This procedure describes how to safely give yourself a subcutaneous injection, from gathering supplies through disposal of the used syringe. Always follow the specific instructions given by your healthcare provider for your medication and dosage, as they take priority over general guidance.

Scope

Subcutaneous injections are commonly used to manage several health conditions, including:

• Diabetes
• Anemia
• Blood clotting disorders

Important notice: Medications are obtained from multiple manufacturers, so your medication or device may not look exactly like the ones shown in this guide. Reference to any manufacturer-specific medicine or device in this document does not represent an endorsement of that product.

Overview: Injection devices and medication forms

Medications for subcutaneous injection are packaged in a few different ways, and it helps to recognize which type you have before you begin.

• Auto-injectors or pens: Pre-loaded devices with instructions printed directly on the label.
• Traditional syringes: May come pre-filled with medicine.
• Vials: Medicine must be withdrawn from the vial each time you give yourself an injection.

Medicine may come in liquid or powder form. Powdered medicine must be mixed with a liquid, such as saline or distilled water, before use.

To give a subcutaneous injection, you insert a small needle into the fatty tissue just below the skin and inject the medicine into that tissue.

Required supplies

Before you begin, gather the following items:

• Alcohol pads or cotton swabs dipped in rubbing alcohol
• A disposable syringe
• The vial of medicine you will be using
• Adhesive bandages
• A sharps container or another safe disposal container for the used syringe

Procedure

Step 1: Let refrigerated medication reach room temperature

If your medication is stored in the refrigerator, remove it and let it sit at room temperature before use. Injecting cold medicine can be more painful, so this step helps reduce discomfort.

Step 2: Wash your hands

Wash your hands thoroughly with soap and warm water before handling any supplies or medication. Proper handwashing helps prevent infection.

Step 3: Gather your supplies

Check that you have all required items on hand: alcohol pads or cotton swabs, a disposable syringe, your medicine vial, adhesive bandages, and a sharps container.

Step 4: Lay out your supplies

Open your supply container and lay out the alcohol pads, medicine vial, disposable syringe, adhesive bandages, and sharps container on a clean surface so everything is within easy reach.

Step 5: Choose an injection site

Subcutaneous injections can be given in the upper arm, upper thigh, outer hip, or abdomen. Do not inject into areas that are bruised, tender, or scarred.

Safety note: Rotate your injection site each time rather than using the exact same spot repeatedly, which helps prevent tissue damage.

Step 6: Identify the parts of your syringe

Every syringe has three main parts: the needle, which enters the skin; the barrel, which has measurement markings in units or milliliters to help you draw the correct dose; and the plunger, which you push to inject the medicine. Insulin syringes are usually marked in units, while other syringes may be marked in milliliters.

Step 7: Check the syringe markings

Review the measurement markings on your syringe carefully. Your healthcare provider will instruct you on how to use these markings to measure your dose accurately.

Step 8: Let the alcohol dry on the vial

After cleaning the vial's rubber stopper with an alcohol swab, allow it to dry for a few seconds before proceeding. This prevents stinging and reduces the risk of contamination.

Step 9: Remove the cap from the plunger

If your syringe has a cap on the plunger end, take it off before drawing up medication.

Step 10: Draw air into the syringe

Pull the plunger back to the prescribed unit mark to draw air into the syringe. This amount should match your medication dose.

Step 11: Insert the needle into the vial

Carefully remove the cap from the needle and set it aside on a clean surface, then push the needle through the rubber stopper at the top of the medication vial.

Step 12: Inject air into the vial

Flip the vial and syringe upside down, keeping the needle tip below the surface of the liquid, then slowly push the plunger all the way in to inject the air into the vial.

Step 13: Draw up the medication

With the vial still upside down, slowly pull the plunger back to the prescribed unit mark to draw the correct dose into the syringe. Keep the needle tip under the liquid surface to avoid drawing in air.

Safety note: If you notice large air bubbles in the syringe barrel, push the plunger to send the medication back into the vial, then slowly draw the correct amount again, minimizing air bubbles.

Step 14: Prepare the injection site

Clean your chosen injection site with a fresh alcohol swab and allow the area to dry completely before injecting.

Step 15: Pinch the skin and position the needle

Using your non-dominant hand, pinch a section of skin at the injection site between your thumb and forefinger. Hold the syringe like a pencil and position the needle so it points straight at the skin at a 90-degree angle, or as instructed by your healthcare provider.

Step 16: Insert the needle and inject the medication

With a firm, smooth motion, push the needle through the skin into the fatty tissue just beneath the surface. Shift your thumb to the plunger and slowly push it all the way in. Count to three to ensure the syringe is completely empty.

Step 17: Withdraw the needle

Pull the needle straight out from the skin in one smooth motion.

Step 18: Dispose of the used syringe

Immediately place the used syringe into a sharps container. If you do not have a commercial sharps container, use a jar or bottle made of stiff plastic with a screw-on cap.

Step 19: Secure your sharps container

If using a household substitute container, clearly label it as "Dangerous" or "Sharps" so anyone who sees it knows not to touch it, and place it in a safe location out of reach of children and pets.

Step 20: Store your medication

If your medication requires refrigeration, return it to the refrigerator immediately after use. Confirm the refrigerator is set to the appropriate temperature recommended for your medication.

Step 21: Dispose of remaining supplies

Discard all other used supplies, such as alcohol swabs, wrappers, and packaging, in your regular household trash unless otherwise instructed.

Verification and summary

Confirm the following before finishing:

• The needle has been fully withdrawn and the syringe is empty.
• The used syringe is sealed inside a sharps container, clearly labeled and stored out of reach of children and pets.
• Refrigerated medication has been returned to proper storage.
• All remaining supplies have been discarded appropriately.

Subcutaneous injections may seem intimidating at first, but following these steps consistently allows you to safely and effectively administer your medication. Always keep sharps containers and medications in a secure place, and check your sharps container regularly, disposing of it according to local regulations once it is full.

What's next

If you have questions or concerns about your medication, injection technique, or disposal methods, contact your healthcare provider or pharmacist for assistance. For additional information and support, refer to resources provided by your healthcare provider or the relevant health authority overseeing your care.