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There are major differences in the metabolism of morphine and the illegal drug heroin. Morphine mostly produces its CNS effects through m-receptors, and at k- and d-receptors. Heroin has a slight affinity for opiate receptors. Most of its actions are due to metabolism to active metabolites (6-acetylmorphine, morphine, and morphine-6-glucuronide).
Multiple sclerosis is a condition wherein the body's nervous system is weakened by an autoimmune reaction that attacks the myelin sheaths of neurons.
Eat fiber! A diet high in fiber can help lower cholesterol levels by as much as 10%.
In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.
Medication errors are more common among seriously ill patients than with those with minor conditions.