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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).
Cucumber slices relieve headaches by tightening blood vessels, reducing blood flow to the area, and relieving pressure.
People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.
The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.
The first oral chemotherapy drug for colon cancer was approved by FDA in 2001.