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In 2006, a generic antinausea drug named ondansetron was approved. It is used to stop nausea and vomiting associated with surgery, chemotherapy, and radiation therapy.
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).
The liver is the only organ that has the ability to regenerate itself after certain types of damage. As much as 25% of the liver can be removed, and it will still regenerate back to its original shape and size. However, the liver cannot regenerate after severe damage caused by alcohol.
As the western states of America were settled, pioneers often had to drink rancid water from ponds and other sources. This often resulted in chronic diarrhea, causing many cases of dehydration and death that could have been avoided if clean water had been available.
Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.
![Dewey and the reformers attacked classes, such as this one, circa 1900, where students sat up straig](https://biology-forums.com/gallery/47/medium_376716_26_08_15_11_14_03_224292294.jpeg)
![Establish contact by rocking the leg inward and outward in rotation. Hands move along the entire ...](https://biology-forums.com/gallery/33/medium_380798_23_08_17_7_05_47_333041130.jpeg)