WordNet (r) 3.0 (2006):

shock therapy
    n 1: treatment of certain psychotic states by the administration
         of shocks that are followed by convulsions [syn: shock
         therapy, shock treatment]

Moby Thesaurus II by Grady Ward, 1.0:

68 Moby Thesaurus words for "shock therapy":
   Metrazol shock therapy, Metrazol therapy, X-ray therapy,
   actinotherapy, aerosol therapy, aerotherapeutics, aerotherapy,
   arsenotherapy, autoserum therapy, bacterial therapy,
   bacteriotherapy, bibliotherapy, biotherapy, buffer therapy,
   cardiotherapy, chemotherapy, chrysotherapy, climatotherapy,
   cold therapy, collapse therapy, constitutional therapy,
   contact therapy, crymotherapy, dermatotherapy, dietotherapy,
   dye therapy, electronarcosis, electroshock, electroshock therapy,
   endocrinotherapy, fever therapy, frigotherapy, galactotherapy,
   glandular therapy, gold therapy, hemotherapy, hyperbaric therapy,
   hypoglycemic shock therapy, immunization therapy, infrared therapy,
   insulin shock therapy, intravenous therapy, iodotherapy,
   maggot therapy, malariotherapy, mechanotherapy,
   nonspecific therapy, occupational therapy, opsonic therapy,
   organotherapy, oxygen therapy, pharmacotherapy, phototherapy,
   physical therapy, physiotherapy, protein therapy, pyretotherapy,
   radium therapy, ray therapy, replacement therapy, serotherapy,
   shock treatment, specific therapy, suggestion therapy,
   surgicotherapy, ultrasonic therapy, ultraviolet therapy,
   vaccine therapy