Bind is the opposite of Loose. Loose is the opposite of Stretch. 
Prescription is a synonym of Medicine. Medicine is derived from Medication. Medication is a type of Therapy. Therapy is related to Shock. 
Bind <--Antonym--> Loose <--Antonym--> Stretch 
Prescription <--Synonym--> Medicine --DerivedFrom--> Medication --IsA--> Therapy <--RelatedTo--> Shock 