FOSHAN PHARMA CO., LTD.

FOSHAN PHARMA CO., LTD.

Vaccine Administration: Needle Gauge and Length

2025 11/07

 

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Vaccines must reach the required tissue to provide the optimal immune response and reduce the likelihood of injection site reactions. The selection of needles should be based on:1.Injection route ;2.Age;3.Gender and weight of adults (19 years old and above);4.Injection site

The table below lists the recommended needle gauges and lengths. In addition, clinical judgment should be used when selecting injection needles for vaccine administration.

Injection Route

Age

Needle Gauge and Length

Injection Site

Subcutaneous Injection

All ages

Gauge: 23-25;

Length: 5/8 inch (16 mm)

Thighs1 for infants under 12 months old; Deltoid muscle of the upper arm for individuals 12 months old and above

Intramuscular Injection

Newborns, 28 days old and younger

Gauge: 23-25;

Length: 5/8 inch (16 mm2)

Anterolateral thigh (vastus lateralis muscle)

Infants, 1-12 months old

Gauge: 23-25;

Length: 1 inch (25 mm)

Anterolateral thigh (vastus lateralis muscle)

Toddlers, 1-2 years old

Gauge: 23-25;

Length: 1-1.25 inches (25-32 mm)

Anterolateral thigh (vastus lateralis muscle)

Gauge: 23-25;

Length: 5/82-1 inch (16-25 mm)

Deltoid muscle of the upper arm

Children, 3-10 years old

Gauge: 23-25;

Length: 5/82-1 inch (16-25 mm)

Deltoid muscle of the upper arm3

Gauge: 23-25;

Length: 1-1.25 inches (25-32 mm)

Anterolateral thigh (vastus lateralis muscle)

Children, 11-18 years old

Gauge: 23-25;

Length: 5/82-1 inch (16-25 mm)

Deltoid muscle of the upper arm35

Adults 19 years old and above  

130 lbs (60 kg) or less

130-152 lbs (60-70 kg)

Males, 152-260 lbs (70-118 kg)

Females, 152-200 lbs (70-90 kg)

Males, 260 lbs (118 kg) or more

Females, 200 lbs (90 kg) or more

Gauge: 23-25;

Length: 1 inch (25 mm4)

1 inch (25 mm)

1-1.5 inches (25-38 mm)

1-1.5 inches (25-38 mm)

1.5 inches (38 mm)

1.5 inches (38 mm)

Deltoid muscle of the upper arm35

Notes:

1. The lateral triceps area may be used if necessary.

2. If the skin is stretched tightly and the subcutaneous tissue is not bunched.

3. Preferred site.

4. Some experts recommend using a 5/8-inch needle for males and females weighing less than 60 kg; if used, the skin must be stretched tightly and the subcutaneous tissue must not be bunched.

5. The vastus lateralis muscle may also be used. Most adolescents and adults will require a 1-1.5 inch (25-38 mm) needle to ensure intramuscular vaccination.

Reference: Advisory Committee on Immunization Practices General Best Practice Guidelines for Immunization. www.cdc.gov/vaccines/hcp/acip-recs/general-recs/administration.html