<prompt> Morphine can administered by all of the following routes except:IntramuscularTransdermalEpiduralSubarachnoid  <response>: Ref: KDT 6e p458 Respiratory depression occurs due to depression of respiratory centre by morphine travelling through the subarachnoid space Routes of administration of morphine are: -Oral -Rectal -Intramuscular -Intravenous -Transdermal -Subcutaneous 