Morphine causes all, Except
Morphine is contraindicated in patients with head injury because 1. It causes increased intracranial tension. 2. Causes marked respiratory depression. 3. Causes vomiting, miosis and altered mentation that interfere with assessment of progress in head injury patients. Ref: KD Tripathi 8th ed.
Peripheral vasodilatation
Decrease intracranial tension
Nausea and vomiting
Decrease in gastrointestinal secretion
Autacoids