Janssen Pharmaceutical Products, L.P. BrandsUpdated: November 8, 2013 Janssen Pharmaceutical Products, L.P. manufacturers the following brands:Imodium Inapsine Invega Nizoral Reminyl Risperdal GenericsBack to TopJanssen Pharmaceutical Products, L.P. manufacturers the following generics:Droperidol Galantamine Ketoconazole Loperamide Paliperidone Risperidone