Morphine

Morphine

Morphine /môr′ fēn/ A white crystalline alkaloid derived from the opium poppy, Papaver somniferum. Morphine acts on the CNS to produce both depression and euphoric stimulation. Its principal therapeutic value is for the relief of moderate to severe pain. Morphine rarely provides total relief of pain, but in most cases it reduces the level of suffering. Patients with severe pain may become drowsy and relaxed but seldom achieve the sensation of euphoria. Repeated use of morphine leads to tolerance, necessitating increased dosage levels to get the same degree of pain relief.

© Matt Dillard 2012