Objective: Patients with delusional parasitosis (DP) have a fixed belief of being infested by small pathogens. Typical and atypical antipsychotics are widely used for treating DP. There are limited controlled trials about the treatment of DP and the most useful antipsychotic agent is still unknown. Paliperidone treatment for DP will be demonstrated through two cases. One of these cases had previously used pimozide but had not responded to treatment. Both cases had remission from symptoms with paliperidone. There are only two case reports published about paliperidone treatment for DP.