See previous thread Preservative free Morphine:
Nebulized drugs in palliative care
Some, but not all, clinicians use preservative-free opioid preservative-free opioid preparations in an attempt to reduce the risk of bronchospasm. If morphine is employed then the intravenous formulation should be used and not the oral elixir.
Includes drug delivery chart
http://www.brit-thoracic.org.uk/pdf...sPalliative.pdf
Doses initially of 5mg morphine diluted in either 2ml or 5ml 0.9% sodium chloride or water and nebulised over 15 minutes have been used. This dose may be repeated four hourly. If shortness of breath recurs in less than four hours or it the patient does not significantly improve then the dose may be increased by 25 - 30%. The maximum dose of morphine recommended is 30mg. Preservative free solutions are preferred when preparing doses as the presence of preservatives have been found to cause bronchoconstriction and bronchitis in some patients
http://www.stjames.ie/nmic/qa.html
Link has other articles:
http://allnurses.com/forums/showthre...spnea+morphine