Intramuscular SoluCortef Injection Sites
For intramuscular administration of SoluCortef (hydrocortisone), use standard IM injection sites: the deltoid muscle (middle third posterior aspect of the upper arm), the anterolateral thigh (upper third anterior lateral aspect), or the gluteal region (posterior lateral aspect of upper buttocks). 1
Preferred IM Sites for Hydrocortisone
The following anatomical locations are appropriate for IM hydrocortisone administration:
- Deltoid muscle: Middle third posterior aspect of the upper arm 2
- Thigh: Upper third anterior lateral aspect of both thighs 2
- Gluteal region: Posterior lateral aspect of both upper buttocks and flanks 2
Clinical Context: When IM Administration is Appropriate
IM hydrocortisone is indicated when IV access is unavailable or impractical, though IV administration is preferred for maintaining optimal plasma cortisol concentrations during acute adrenal crisis. 1
- In adrenal crisis, hydrocortisone 100 mg should be given immediately—if peripheral venous access cannot be achieved quickly, IM administration should be performed without delay 3, 4
- IM administration has a long tradition of safety and clinical effectiveness and may be prescribed in circumstances where IV infusion therapy is impractical 1
- For ongoing management after initial bolus, hydrocortisone 50 mg IM every 6 hours is an acceptable alternative to continuous IV infusion 3, 5
Emergency Self-Administration Considerations
All patients with adrenal insufficiency should be provided with an emergency kit containing injectable hydrocortisone (100 mg) for IM self-administration to prevent or treat impending adrenal crisis. 6, 7, 8
- Patients and families should receive training on IM self-injection technique 6, 4
- The thigh (anterolateral aspect) may be the most practical site for self-administration, as it is easily accessible 2
- Every patient should carry an emergency card and medical alert bracelet/necklace indicating the diagnosis and need for hydrocortisone administration 6, 7
Important Caveats
- Do not delay treatment to establish IV access—if adrenal crisis is suspected and IV access is difficult, give hydrocortisone 100 mg IM immediately 3, 5
- The deltoid site should be at the intersection between the anteroposterior axillary line and the perpendicular line from the mid-acromion to avoid the axillary nerve and posterior circumflex humeral artery 9
- In obstetric patients with adrenal insufficiency, hydrocortisone 100 mg should be given at onset of labor, then 50 mg IM every 6 hours until after delivery if IV access is not available 1, 6