MMedications Methadone (By injection) Other forms By mouth, Oral route Drug classes About this Analgesic, Opioid Dependency Methadone (By injection) was last modified: June 24th, 2016 by explainingmedicine Related oral 0 comment 0 Facebook Twitter Google + Pinterest explainingmedicine previous post Mesoridazine (By mouth) next post Mucinex (see Guaifenesin (By mouth)) Related Articles Metoprolol (By mouth) June 20, 2016 Rivastigmine (Absorbed through the skin) June 21, 2016 Cholera Vaccine (Injection route) June 18, 2016 Topotecan (By mouth) June 16, 2016 Edex (see Alprostadil (By injection)) June 20, 2016 Gadoxetate (By injection) June 20, 2016 Lumacaftor/Ivacaftor (By mouth) June 20, 2016 Mononine (see Factor IX Complex) June 20, 2016 Sunmark Coenzyme Q-10 (see Coenzyme Q10 (By mouth)) June 16, 2016 Robaxin-750 (see Methocarbamol (By mouth)) June 21, 2016