Depo-Provera Injection Site
Depo-Provera (medroxyprogesterone acetate) 150 mg should be administered by deep intramuscular injection into either the gluteal or deltoid muscle, rotating sites with every injection. 1
Administration Details
The FDA-approved prescribing information is explicit about proper administration technique 1:
- Approved sites: Gluteal muscle OR deltoid muscle
- Route: Deep intramuscular (IM) injection
- Technique: Use strict aseptic technique
- Dose: 150 mg every 3 months (13 weeks)
- Important: Vigorously shake the vial or prefilled syringe just before use to ensure uniform suspension
Critical Technical Considerations
Body habitus assessment is essential before each injection. As with any IM injection, you must assess the patient's body composition prior to injection to determine if a longer needle is necessary, particularly for gluteal IM injection, to avoid inadvertent subcutaneous administration 1. The standard prefilled syringes come with 22-gauge x 1½ inch needles 1.
Site rotation is mandatory - alternate between gluteal and deltoid muscles with each subsequent injection to minimize local tissue reactions 1.
Subcutaneous Formulation Alternative
A distinct lower-dose subcutaneous formulation exists (Depo-SubQ Provera 104 mg), which is administered subcutaneously in the anterior thigh or abdomen 2, 3. Recent research demonstrates that the upper arm is also an effective subcutaneous injection site for the 104 mg formulation 3, 4. However, this is a different product with different dosing (104 mg vs 150 mg) and should not be confused with the standard intramuscular Depo-Provera.
Common Pitfall to Avoid
Do not administer the 150 mg intramuscular formulation subcutaneously. While research has explored subcutaneous administration of the 150 mg dose 5, this is not FDA-approved and the standard 150 mg Depo-Provera Contraceptive Injection must be given intramuscularly as labeled 1. Using the wrong route could result in suboptimal contraceptive efficacy.
The buttock (gluteal) and upper arm (deltoid) remain the only two FDA-approved intramuscular injection sites for standard Depo-Provera 150 mg 1.