Difficulty
advanced
Max Volume
1.5ml
Needle Gauge
25-27G
Needle Length
0.5-1"
Description
The triceps muscle on the back of the arm can be used for small volume injections. Requires good flexibility or assistance to reach.
PIP Likelihood:
★
★
★
★
★
Injection Technique
1. Locate the thickest part of the triceps (horseshoe shape) 2. Relax the arm completely 3. Clean the area 4. Insert at 90-degree angle 5. Aspirate carefully 6. Inject slowly 7. Withdraw and apply pressure
Rotation Schedule
Can be added to advanced rotation schedules. Allow 7-10 days between same-side injections.
Common Mistakes
Not relaxing the muscle, using too large a volume, difficulty reaching the site properly.
⚠️ Nerve & Safety Warnings
Radial nerve runs through this area. Stay in the thick muscle belly, away from the inner arm.