A randomized, open-label, multi-center, two-drug, multiple-dose, parallel-design study was conducted among patients with schizophrenia in China to evaluate the bioequivalence of the test formulation paliperidone palmitate (3M) produced by CSPC zhongnuo Pharmaceutical (Shijiazhuang) Co., Ltd. and the reference formulation paliperidone palmitate injection (3M) (trade name: Santodar) of Janssen Pharmaceutica N.V.