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. 2025 Dec 23;30(Suppl 1):S45–S50. doi: 10.1017/S1092852925100552

Table 2.

Injection Sites, Technique, and Initiation Regimen

Medication name Recommended injection site(s) Injection technique Oral overlap/initiation regimen
Risperidone LAI (Risperdal Consta) 13 Deltoid or gluteal IM Yes (3 wk)
Paliperidone Palmitate (Invega Sustenna) 7 Deltoid (initiation); deltoid or gluteal (maintenance) IM No/initiation doses
Paliperidone Palmitate (Invega Trinza) 8 Deltoid or gluteal IM No (after ≥4 mo of Invega Sustenna)
Aripiprazole Monohydrate (Abilify Maintena) 3 Deltoid or gluteal IM Yes (14 d) or two dose initiation
Aripiprazole Monohydrate (Abilify Asimtufii) 4 Gluteal only IM No (if on Abilify Maintena currently) or yes (14 d) or two dose initiation
Aripiprazole Lauroxil (Aristada) 2 Deltoid (441 mg); gluteal (≥662 mg) IM (rapidly, do not aspirate) Yes (21 d) or Aristada Initio
Aripiprazole Lauroxil (Aristada Initio) 1 Gluteal only IM Used as single dose for initiation only
Olanzapine Pamoate (Zyprexa Relprevv) 5 Gluteal only (deep) IM No
Paliperidone Palmitate (Invega Hafyera) 9 Gluteal only IM No (after adequate treatment with Invega Sustenna or Invega Trinza)
Risperidone LAI (Perseris) 10 Subcutaneous SC No (“double peak”)
Risperidone (Uzedy) 12 Subcutaneous SC No (“double peak”)
Paliperidone Palmitate (Erzofri) 6 Deltoid (first dose); deltoid or gluteal (maintenance) IM No (uses larger initiation dose)