Prolonged respiratory depression caused by slow release morphine.
D000368:Aged; D003692:Delayed-Action Preparations; D003864:Depression, Chemical; D005260:Female; D006801:Humans; D009020:Morphine / Q000008:administration & dosage / Q000009:adverse effects*; D012119:Respiration / Q000187:drug effects*
D003692:Delayed-Action Preparations; D009020:Morphine